package handlers

import (
	"api-service/internal/config"
	"api-service/internal/database"
	models "api-service/internal/models"
	pasienModels "api-service/internal/models/pasien"
	queryUtils "api-service/internal/utils/query"
	"api-service/internal/utils/validation"
	"api-service/pkg/logger"
	"context"
	"database/sql"
	"fmt"
	"net/http"
	"strconv"
	"strings"
	"sync"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/go-playground/validator/v10"
	"github.com/jmoiron/sqlx"
	"github.com/lib/pq"
)

// =============================================================================
// GLOBAL INITIALIZATION & VALIDATION
// =============================================================================

var (
	db       database.Service
	once     sync.Once
	validate *validator.Validate
)

// Initialize the database connection and validator once
func init() {
	once.Do(func() {
		db = database.New(config.LoadConfig())
		validate = validator.New()
		validate.RegisterValidation("pasien_status", validatePasienStatus)
		if db == nil {
			logger.Fatal("Failed to initialize database connection")
		}
	})
}

// Custom validation for pasien status
func validatePasienStatus(fl validator.FieldLevel) bool {
	return models.IsValidStatus(fl.Field().String())
}

// =============================================================================
// CACHE IMPLEMENTATION
// =============================================================================

// CacheEntry represents an entry in the cache
type CacheEntry struct {
	Data      interface{}
	ExpiresAt time.Time
}

// IsExpired checks if the cache entry has expired
func (e *CacheEntry) IsExpired() bool {
	return time.Now().After(e.ExpiresAt)
}

// InMemoryCache implements a simple in-memory cache with TTL
type InMemoryCache struct {
	items sync.Map
	mu    sync.RWMutex
}

// NewInMemoryCache creates a new in-memory cache
func NewInMemoryCache() *InMemoryCache {
	return &InMemoryCache{}
}

// Get retrieves an item from the cache
func (c *InMemoryCache) Get(key string) (interface{}, bool) {
	val, ok := c.items.Load(key)
	if !ok {
		return nil, false
	}

	entry, ok := val.(*CacheEntry)
	if !ok || entry.IsExpired() {
		c.items.Delete(key)
		return nil, false
	}

	return entry.Data, true
}

// Set stores an item in the cache with a TTL
func (c *InMemoryCache) Set(key string, value interface{}, ttl time.Duration) {
	entry := &CacheEntry{
		Data:      value,
		ExpiresAt: time.Now().Add(ttl),
	}
	c.items.Store(key, entry)
}

// Delete removes an item from the cache
func (c *InMemoryCache) Delete(key string) {
	c.items.Delete(key)
}

// DeleteByPrefix removes all items with a specific prefix
func (c *InMemoryCache) DeleteByPrefix(prefix string) {
	c.items.Range(func(key, value interface{}) bool {
		if keyStr, ok := key.(string); ok && strings.HasPrefix(keyStr, prefix) {
			c.items.Delete(key)
		}
		return true
	})
}

// =============================================================================
// Pasien HANDLER STRUCT
// =============================================================================

// PasienHandler handles pasien services
type PasienHandler struct {
	db           database.Service
	queryBuilder *queryUtils.QueryBuilder
	validator    *validation.DynamicValidator
	cache        *InMemoryCache
}

// NewPasienHandler creates a new PasienHandler with a pre-configured QueryBuilder
func NewPasienHandler() *PasienHandler {
	// Initialize QueryBuilder with allowed columns list for security.
	queryBuilder := queryUtils.NewQueryBuilder(queryUtils.DBTypePostgreSQL).
		SetAllowedColumns([]string{
			"id",
			"nomr",
			"status",
			"title",
			"nama",
			"tempat",
			"tgllahir",
			"jeniskelamin",
			"alamat",
			"kelurahan",
			"kdkecamatan",
			"kota",
			"kdprovinsi",
			"agama",
			"no_kartu",
			"noktp_baru",
			"created_at",
			"updated_at",
			"idprovinsi",
			"namaprovinsi",
			"idkota",
			"namakota",
			"idkecamatan",
			"namakecamatan",
			"idkelurahan",
			"namakelurahan",
		})

	return &PasienHandler{
		db:           db,
		queryBuilder: queryBuilder,
		validator:    validation.NewDynamicValidator(queryBuilder),
		cache:        NewInMemoryCache(),
	}
}

// =============================================================================
// HANDLER ENDPOINTS
// =============================================================================

// GetPasienByAge godoc
// @Summary Get Pasien by Age Group
// @Description Get pasien statistics by age group
// @Tags Pasien
// @Accept json
// @Produce json
// @Param age_group query string false "Age group (child, teen, adult, senior)"
// @Success 200 {object} pasienModels.PasienAgeStatsResponse "Statistics data"
// @Failure 400 {object} models.ErrorResponse "Bad request"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/by-age [get]
func (h *PasienHandler) GetPasienByAge(c *gin.Context) {
	// Parse age group
	ageGroup := c.Query("age_group")
	validAgeGroups := map[string]bool{
		"child":  true, // 0-12 years
		"teen":   true, // 13-17 years
		"adult":  true, // 18-59 years
		"senior": true, // 60+ years
	}

	if ageGroup == "" || !validAgeGroups[ageGroup] {
		h.respondError(c, "Invalid age group", fmt.Errorf("age group must be one of: child, teen, adult, senior"), http.StatusBadRequest)
		return
	}

	// Use GetSQLXDB to get database connection
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 30*time.Second)
	defer cancel()

	// Build query
	query := queryUtils.DynamicQuery{
		From: "m_pasien",
		Fields: []queryUtils.SelectField{
			{Expression: "COUNT(*)", Alias: "count"},
		},
		Filters: []queryUtils.FilterGroup{{
			Filters: []queryUtils.DynamicFilter{
				{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"},
			},
			LogicOp: "AND",
		}},
	}

	// Execute query
	var result struct {
		Count int `db:"count"`
	}
	err = h.queryBuilder.ExecuteQueryRow(ctx, dbConn, query, &result)
	if err != nil {
		h.logAndRespondError(c, "Failed to get age statistics", err, http.StatusInternalServerError)
		return
	}

	// Build response
	response := pasienModels.PasienAgeStatsResponse{
		Message: fmt.Sprintf("Age group '%s' statistics retrieved successfully", ageGroup),
		Data: map[string]interface{}{
			"age_group": ageGroup,
			"count":     result.Count,
		},
	}
	c.JSON(http.StatusOK, response)
}

// GetPasienDynamic godoc
// @Summary Get Pasien Dynamic
// @Description Get pasien with dynamic filtering
// @Tags Pasien
// @Accept json
// @Produce json
// @Param fields query string false "Fields to select (e.g., fields=*.*)"
// @Param filter[column][operator] query string false "Dynamic filters (e.g., filter[name][_eq]=value)"
// @Param sort query string false "Sort fields (e.g., sort=date_created,-name)"
// @Param limit query int false "Limit" default(10)
// @Param offset query int false "Offset" default(0)
// @Success 200 {object} pasienModels.PasienGetResponse "Success response"
// @Failure 400 {object} models.ErrorResponse "Bad request"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/dynamic [get]
func (h *PasienHandler) GetPasienDynamic(c *gin.Context) {
	parser := queryUtils.NewQueryParser().SetLimits(10, 100)
	dynamicQuery, err := parser.ParseQueryWithDefaultFields(c.Request.URL.Query(), "m_pasien", []string{
		"id",
		"nomr",
		"status",
		"title",
		"nama",
		"tempat",
		"tgllahir",
		"jeniskelamin",
		"alamat",
		"kelurahan",
		"kdkecamatan",
		"kota",
		"kdprovinsi",
		"agama",
		"no_kartu",
		"noktp_baru",
		"namakelurahan",
		"namakecamatan",
		"namakota",
		"namaprovinsi",
	})
	if err != nil {
		h.respondError(c, "Invalid query parameters", err, http.StatusBadRequest)
		return
	}

	// Add joins for relationships using the correct structure
	dynamicQuery.Joins = []queryUtils.Join{
		{
			Type:  "LEFT",
			Table: "m_provinsi",
			Alias: "m_provinsi",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdprovinsi", Operator: queryUtils.OpEqual, Value: "m_provinsi.idprovinsi"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kota",
			Alias: "m_kota",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kota", Operator: queryUtils.OpEqual, Value: "m_kota.idkota"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kecamatan",
			Alias: "m_kecamatan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdkecamatan", Operator: queryUtils.OpEqual, Value: "m_kecamatan.idkecamatan"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kelurahan",
			Alias: "m_kelurahan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kelurahan", Operator: queryUtils.OpEqual, Value: "m_kelurahan.idkelurahan"},
				},
			},
		},
	}

	// Add default filter to exclude deleted records
	dynamicQuery.Filters = append([]queryUtils.FilterGroup{{
		Filters: []queryUtils.DynamicFilter{{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"}},
		LogicOp: "AND",
	}}, dynamicQuery.Filters...)

	// Try to get from cache first
	// Create cache key from query string
	cacheKey := fmt.Sprintf("pasien:dynamic:%s", c.Request.URL.RawQuery)
	if cachedData, found := h.cache.Get(cacheKey); found {
		logger.Info("Cache hit for dynamic query", map[string]interface{}{"cache_key": cacheKey})

		// Convert from interface{} to expected type
		if pasiens, ok := cachedData.([]pasienModels.Pasien); ok {
			meta := h.calculateMeta(dynamicQuery.Limit, dynamicQuery.Offset, len(pasiens))
			response := pasienModels.PasienGetResponse{
				Message: "Data pasien berhasil diambil (dari cache)",
				Data:    pasiens,
				Meta:    meta,
			}
			c.JSON(http.StatusOK, response)
			return
		}
	}

	// Use GetSQLXDB to get database connection
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 30*time.Second)
	defer cancel()

	pasiens, total, err := h.fetchPasiensDynamic(ctx, dbConn, dynamicQuery)
	if err != nil {
		h.logAndRespondError(c, "Failed to fetch data", err, http.StatusInternalServerError)
		return
	}

	// Save to cache
	h.cache.Set(cacheKey, pasiens, 10*time.Minute) // Cache for 10 minutes

	meta := h.calculateMeta(dynamicQuery.Limit, dynamicQuery.Offset, total)
	response := pasienModels.PasienGetResponse{
		Message: "Data pasien berhasil diambil",
		Data:    pasiens,
		Meta:    meta,
	}
	c.JSON(http.StatusOK, response)
}

// GetPasienByLocation godoc
// @Summary Get Pasien by Location
// @Description Get pasien by location (provinsi, kota, kecamatan, kelurahan)
// @Tags Pasien
// @Accept json
// @Produce json
// @Param kelurahan query int false "Filter by kelurahan ID"
// @Param kdkecamatan query int false "Filter by kdkecamatan ID"
// @Param kota query int false "Filter by kota ID"
// @Param kdprovinsi query int false "Filter by kdprovinsi ID"
// @Param limit query int false "Limit (max 100)" default(10)
// @Param offset query int false "Offset" default(0)
// @Success 200 {object} pasienModels.PasienGetResponse "Success response"
// @Failure 400 {object} models.ErrorResponse "Bad request"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/by-location [get]
func (h *PasienHandler) GetPasienByLocation(c *gin.Context) {
	// Parse location filters
	var filters []queryUtils.DynamicFilter

	if kelurahan := c.Query("kelurahan"); kelurahan != "" {
		if kelurahanID, err := strconv.Atoi(kelurahan); err == nil {
			filters = append(filters, queryUtils.DynamicFilter{Column: "kelurahan", Operator: queryUtils.OpEqual, Value: kelurahanID})
		}
	}

	if kdkecamatan := c.Query("kdkecamatan"); kdkecamatan != "" {
		if kdkecamatanID, err := strconv.Atoi(kdkecamatan); err == nil {
			filters = append(filters, queryUtils.DynamicFilter{Column: "kdkecamatan", Operator: queryUtils.OpEqual, Value: kdkecamatanID})
		}
	}

	if kota := c.Query("kota"); kota != "" {
		if kotaID, err := strconv.Atoi(kota); err == nil {
			filters = append(filters, queryUtils.DynamicFilter{Column: "kota", Operator: queryUtils.OpEqual, Value: kotaID})
		}
	}

	if kdprovinsi := c.Query("kdprovinsi"); kdprovinsi != "" {
		if kdprovinsiID, err := strconv.Atoi(kdprovinsi); err == nil {
			filters = append(filters, queryUtils.DynamicFilter{Column: "kdprovinsi", Operator: queryUtils.OpEqual, Value: kdprovinsiID})
		}
	}

	// Parse pagination
	limit, offset := 10, 0
	if limitStr := c.Query("limit"); limitStr != "" {
		if l, err := strconv.Atoi(limitStr); err == nil && l > 0 && l <= 100 {
			limit = l
		}
	}
	if offsetStr := c.Query("offset"); offsetStr != "" {
		if o, err := strconv.Atoi(offsetStr); err == nil && o >= 0 {
			offset = o
		}
	}

	// Use GetSQLXDB to get database connection
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 30*time.Second)
	defer cancel()

	// Build query
	query := queryUtils.DynamicQuery{
		From: "m_pasien",
		Fields: []queryUtils.SelectField{
			{Expression: "id"},
			{Expression: "nomr"},
			{Expression: "status"},
			{Expression: "title"},
			{Expression: "nama"},
			{Expression: "tempat"},
			{Expression: "tgllahir"},
			{Expression: "jeniskelamin"},
			{Expression: "alamat"},
			{Expression: "kelurahan"},
			{Expression: "kdkecamatan"},
			{Expression: "kota"},
			{Expression: "kdprovinsi"},
			{Expression: "agama"},
			{Expression: "no_kartu"},
			{Expression: "noktp_baru"},
			{Expression: "namakelurahan"},
			{Expression: "namakecamatan"},
			{Expression: "namakota"},
			{Expression: "namaprovinsi"},
		},
		Sort:   []queryUtils.SortField{{Column: "date_created", Order: "DESC"}},
		Limit:  limit,
		Offset: offset,
	}

	// Add joins for relationships using the correct structure
	query.Joins = []queryUtils.Join{
		{
			Type:  "LEFT",
			Table: "m_provinsi",
			Alias: "m_provinsi",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdprovinsi", Operator: queryUtils.OpEqual, Value: "m_provinsi.idprovinsi"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kota",
			Alias: "m_kota",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kota", Operator: queryUtils.OpEqual, Value: "m_kota.idkota"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kecamatan",
			Alias: "m_kecamatan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdkecamatan", Operator: queryUtils.OpEqual, Value: "m_kecamatan.idkecamatan"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kelurahan",
			Alias: "m_kelurahan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kelurahan", Operator: queryUtils.OpEqual, Value: "m_kelurahan.idkelurahan"},
				},
			},
		},
	}

	// Add filters if any
	if len(filters) > 0 {
		query.Filters = append(query.Filters, queryUtils.FilterGroup{
			Filters: filters,
			LogicOp: "AND",
		})
	}

	// Execute query
	pasiens, total, err := h.fetchPasiensDynamic(ctx, dbConn, query)
	if err != nil {
		h.logAndRespondError(c, "Failed to fetch data", err, http.StatusInternalServerError)
		return
	}

	// Build response
	meta := h.calculateMeta(limit, offset, total)
	response := pasienModels.PasienGetResponse{
		Message: "Data pasien by location retrieved successfully",
		Data:    pasiens,
		Meta:    meta,
	}
	c.JSON(http.StatusOK, response)
}

// CreatePasien godoc
// @Summary Create Pasien
// @Description Create a new pasien
// @Tags Pasien
// @Accept json
// @Produce json
// @Param request body pasienModels.PasienCreateRequest true "Pasien creation request"
// @Success 201 {object} pasienModels.PasienCreateResponse "Pasien created successfully"
// @Failure 400 {object} models.ErrorResponse "Bad request or validation error"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/ [post]
func (h *PasienHandler) CreatePasien(c *gin.Context) {
	var req pasienModels.PasienCreateRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		h.respondError(c, "Invalid request body", err, http.StatusBadRequest)
		return
	}
	if err := validate.Struct(&req); err != nil {
		h.respondError(c, "Validation failed", err, http.StatusBadRequest)
		return
	}

	// Use GetSQLXDB to get database connection
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 15*time.Second)
	defer cancel()

	// Validate id must be unique
	if req.ID != nil {
		rule := validation.NewUniqueFieldRule(
			"m_pasien", // Table name
			"id",       // Column that must be unique
			queryUtils.DynamicFilter{ // Additional condition
				Column:   "status",
				Operator: queryUtils.OpNotEqual,
				Value:    "deleted",
			},
		)

		// Prepare data from request for validation
		dataToValidate := map[string]interface{}{
			"id": *req.ID,
		}

		// Execute validation
		isDuplicate, err := h.validator.Validate(ctx, dbConn, rule, dataToValidate)
		if err != nil {
			h.logAndRespondError(c, "Failed to validate id", err, http.StatusInternalServerError)
			return
		}

		if isDuplicate {
			h.respondError(c, "id already exists", fmt.Errorf("duplicate id: %d", *req.ID), http.StatusConflict)
			return
		}
	}

	// Validate nomr must be unique
	if req.Nomr != nil && *req.Nomr != "" {
		rule := validation.NewUniqueFieldRule(
			"m_pasien", // Table name
			"nomr",     // Column that must be unique
			queryUtils.DynamicFilter{ // Additional condition
				Column:   "status",
				Operator: queryUtils.OpNotEqual,
				Value:    "deleted",
			},
		)

		// Prepare data from request for validation
		dataToValidate := map[string]interface{}{
			"nomr": *req.Nomr,
		}

		// Execute validation
		isDuplicate, err := h.validator.Validate(ctx, dbConn, rule, dataToValidate)
		if err != nil {
			h.logAndRespondError(c, "Failed to validate nomr", err, http.StatusInternalServerError)
			return
		}

		if isDuplicate {
			h.respondError(c, "nomr already exists", fmt.Errorf("duplicate nomr: %s", *req.Nomr), http.StatusConflict)
			return
		}
	}

	// Validate no_kartu must be unique
	if req.NoKartu != nil && *req.NoKartu != "" {
		rule := validation.NewUniqueFieldRule(
			"m_pasien", // Table name
			"no_kartu", // Column that must be unique
			queryUtils.DynamicFilter{ // Additional condition
				Column:   "status",
				Operator: queryUtils.OpNotEqual,
				Value:    "deleted",
			},
		)

		// Prepare data from request for validation
		dataToValidate := map[string]interface{}{
			"no_kartu": *req.NoKartu,
		}

		// Execute validation
		isDuplicate, err := h.validator.Validate(ctx, dbConn, rule, dataToValidate)
		if err != nil {
			h.logAndRespondError(c, "Failed to validate no_kartu", err, http.StatusInternalServerError)
			return
		}

		if isDuplicate {
			h.respondError(c, "no_kartu already exists", fmt.Errorf("duplicate no_kartu: %s", *req.NoKartu), http.StatusConflict)
			return
		}
	}

	data := queryUtils.InsertData{
		Columns: []string{
			"status",
			"date_created", "date_updated",
			"id",
			"nomr",
			"status",
			"title",
			"nama",
			"tempat",
			"tgllahir",
			"jeniskelamin",
			"alamat",
			"kelurahan",
			"kdkecamatan",
			"kota",
			"kdprovinsi",
			"agama",
			"no_kartu",
			"noktp_baru",
		},
		Values: []interface{}{
			req.Status,
			time.Now(), time.Now(),
			req.ID,
			req.Nomr,
			req.Status,
			req.Title,
			req.Nama,
			req.Tempat,
			req.Tgllahir,
			req.Jeniskelamin,
			req.Alamat,
			req.Kelurahan,
			req.Kdkecamatan,
			req.Kota,
			req.Kdprovinsi,
			req.Agama,
			req.NoKartu,
			req.NoktpBaru,
		},
	}
	returningCols := []string{
		"status",
		"sort", "user_created", "date_created", "user_updated", "date_updated",
		"id",
		"nomr",
		"status",
		"title",
		"nama",
		"tempat",
		"tgllahir",
		"jeniskelamin",
		"alamat",
		"kelurahan",
		"kdkecamatan",
		"kota",
		"kdprovinsi",
		"agama",
		"no_kartu",
		"noktp_baru",
	}

	sql, args, err := h.queryBuilder.BuildInsertQuery("m_pasien", data, returningCols...)
	if err != nil {
		h.logAndRespondError(c, "Failed to build insert query", err, http.StatusInternalServerError)
		return
	}

	var dataPasien pasienModels.Pasien
	err = dbConn.GetContext(ctx, &dataPasien, sql, args...)
	if err != nil {
		h.logAndRespondError(c, "Failed to create pasien", err, http.StatusInternalServerError)
		return
	}

	// Invalidate cache that might be affected
	h.invalidateRelatedCache()

	response := pasienModels.PasienCreateResponse{Message: "Pasien berhasil dibuat", Data: &dataPasien}
	c.JSON(http.StatusCreated, response)
}

// GetPasien godoc
// @Summary Get Pasien List
// @Description Get list of pasien with pagination and filters
// @Tags Pasien
// @Accept json
// @Produce json
// @Param limit query int false "Limit (max 100)" default(10)
// @Param offset query int false "Offset" default(0)
// @Param status query string false "Filter by status"
// @Param search query string false "Search in multiple fields"
// @Success 200 {object} pasienModels.PasienGetResponse "Success response"
// @Failure 400 {object} models.ErrorResponse "Bad request"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/ [get]
func (h *PasienHandler) GetPasien(c *gin.Context) {
	// Increase timeout for complex queries
	ctx, cancel := context.WithTimeout(c.Request.Context(), 120*time.Second)
	defer cancel()

	// Use the core fetchPasiensDynamic function for all data retrieval logic.
	query := queryUtils.DynamicQuery{
		From: "m_pasien",
		Fields: []queryUtils.SelectField{
			{Expression: "id"},
			{Expression: "nomr"},
			{Expression: "status"},
			{Expression: "title"},
			{Expression: "nama"},
			{Expression: "tempat"},
			{Expression: "tgllahir"},
			{Expression: "jeniskelamin"},
			{Expression: "alamat"},
			{Expression: "kelurahan"},
			{Expression: "kdkecamatan"},
			{Expression: "kota"},
			{Expression: "kdprovinsi"},
			{Expression: "agama"},
			{Expression: "no_kartu"},
			{Expression: "noktp_baru"},
			{Expression: "namakelurahan"},
			{Expression: "namakecamatan"},
			{Expression: "namakota"},
			{Expression: "namaprovinsi"},
		},
		Sort: []queryUtils.SortField{{Column: "date_created", Order: "DESC"}},
	}

	// Add joins for relationships using the correct structure
	query.Joins = []queryUtils.Join{
		{
			Type:  "LEFT",
			Table: "m_provinsi",
			Alias: "m_provinsi",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdprovinsi", Operator: queryUtils.OpEqual, Value: "m_provinsi.idprovinsi"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kota",
			Alias: "m_kota",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kota", Operator: queryUtils.OpEqual, Value: "m_kota.idkota"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kecamatan",
			Alias: "m_kecamatan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdkecamatan", Operator: queryUtils.OpEqual, Value: "m_kecamatan.idkecamatan"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kelurahan",
			Alias: "m_kelurahan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kelurahan", Operator: queryUtils.OpEqual, Value: "m_kelurahan.idkelurahan"},
				},
			},
		},
	}

	// Parse pagination
	if limit, err := strconv.Atoi(c.DefaultQuery("limit", "10")); err == nil && limit > 0 && limit <= 100 {
		query.Limit = limit
	}
	if offset, err := strconv.Atoi(c.DefaultQuery("offset", "0")); err == nil && offset >= 0 {
		query.Offset = offset
	}

	// Use GetSQLXDB to get database connection
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}

	// Parse simple filters
	var filters []queryUtils.DynamicFilter
	if status := c.Query("status"); status != "" && models.IsValidStatus(status) {
		filters = append(filters, queryUtils.DynamicFilter{Column: "status", Operator: queryUtils.OpEqual, Value: status})
	}

	// Optimize query search with caching
	search := c.Query("search")
	var searchFilters []queryUtils.DynamicFilter
	var cacheKey string
	var useCache bool

	// Initialize searchFilters before using it in the cache hit section
	if search != "" {
		// Limit search length to prevent slow queries
		if len(search) > 50 {
			search = search[:50]
		}

		// Generate cache key for search
		cacheKey = fmt.Sprintf("pasien:search:%s:%d:%d", search, query.Limit, query.Offset)

		// Initialize searchFilters here
		searchFilters = []queryUtils.DynamicFilter{
			{Column: "nomr", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
			{Column: "title", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
			{Column: "nama", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
			{Column: "no_kartu", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
		}

		// Try to get from cache first
		if cachedData, found := h.cache.Get(cacheKey); found {
			logger.Info("Cache hit for search", map[string]interface{}{"search": search, "cache_key": cacheKey})

			// Convert from interface{} to expected type
			pasiens, ok := cachedData.([]pasienModels.Pasien)
			if !ok {
				logger.Error("Failed to convert cached data", map[string]interface{}{"cache_key": cacheKey})
			} else {
				// If requested, get aggregation data
				var aggregateData *models.AggregateData
				if c.Query("include_summary") == "true" {
					// Build full filter groups for aggregate data (including search filters)
					fullFilterGroups := []queryUtils.FilterGroup{
						{Filters: searchFilters, LogicOp: "OR"},
					}
					if len(filters) > 0 {
						fullFilterGroups = append(fullFilterGroups, queryUtils.FilterGroup{Filters: filters, LogicOp: "AND"})
					}
					aggregateData, err = h.getAggregateData(ctx, dbConn, fullFilterGroups)
					if err != nil {
						h.logAndRespondError(c, "Failed to get aggregate data", err, http.StatusInternalServerError)
						return
					}
				}

				// Build response
				meta := h.calculateMeta(query.Limit, query.Offset, len(pasiens))
				response := pasienModels.PasienGetResponse{
					Message: "Data pasien berhasil diambil (dari cache)",
					Data:    pasiens,
					Meta:    meta,
				}

				if aggregateData != nil {
					response.Summary = aggregateData
				}

				c.JSON(http.StatusOK, response)
				return
			}
		}

		// If not in cache, mark for saving after query
		useCache = true

		// If there's search, create OR filter group
		query.Filters = append(query.Filters, queryUtils.FilterGroup{Filters: searchFilters, LogicOp: "OR"})
	}

	// Add other filters (if any) as AND group
	if len(filters) > 0 {
		query.Filters = append(query.Filters, queryUtils.FilterGroup{Filters: filters, LogicOp: "AND"})
	}

	pasiens, total, err := h.fetchPasiensDynamic(ctx, dbConn, query)
	if err != nil {
		h.logAndRespondError(c, "Failed to fetch data", err, http.StatusInternalServerError)
		return
	}

	// Save search results to cache if there's a search parameter
	if useCache && len(pasiens) > 0 {
		h.cache.Set(cacheKey, pasiens, 15*time.Minute) // Cache for 15 minutes
		logger.Info("Cached search results", map[string]interface{}{"search": search, "cache_key": cacheKey, "count": len(pasiens)})
	}

	// If requested, get aggregation data
	var aggregateData *models.AggregateData
	if c.Query("include_summary") == "true" {
		aggregateData, err = h.getAggregateData(ctx, dbConn, query.Filters)
		if err != nil {
			h.logAndRespondError(c, "Failed to get aggregate data", err, http.StatusInternalServerError)
			return
		}
	}

	// Build response
	meta := h.calculateMeta(query.Limit, query.Offset, total)
	response := pasienModels.PasienGetResponse{
		Message: "Data pasien berhasil diambil",
		Data:    pasiens,
		Meta:    meta,
	}

	if aggregateData != nil {
		response.Summary = aggregateData
	}

	c.JSON(http.StatusOK, response)
}

// GetPasienByID godoc
// @Summary Get Pasien by ID
// @Description Get pasien by ID
// @Tags Pasien
// @Accept json
// @Produce json
// @Param id path string true "Pasien ID"
// @Success 200 {object} pasienModels.PasienGetByIDResponse "Success response"
// @Failure 400 {object} models.ErrorResponse "Invalid ID format"
// @Failure 404 {object} models.ErrorResponse "Pasien not found"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/:id [get]
func (h *PasienHandler) GetPasienByID(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		h.respondError(c, "Invalid ID format", fmt.Errorf("id cannot be empty"), http.StatusBadRequest)
		return
	}

	// Try to get from cache first
	cacheKey := fmt.Sprintf("pasien:id:%s", id)
	if cachedData, found := h.cache.Get(cacheKey); found {
		logger.Info("Cache hit for id", map[string]interface{}{"id": id, "cache_key": cacheKey})

		// Convert from interface{} to expected type
		if cachedPasien, ok := cachedData.(pasienModels.Pasien); ok {
			response := pasienModels.PasienGetByIDResponse{
				Message: "Pasien details retrieved successfully (dari cache)",
				Data:    &cachedPasien,
			}
			c.JSON(http.StatusOK, response)
			return
		}
	}

	// Use GetSQLXDB to get database connection
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 15*time.Second)
	defer cancel()

	dynamicQuery := queryUtils.DynamicQuery{
		From: "m_pasien",
		Fields: []queryUtils.SelectField{
			{Expression: "id"},
			{Expression: "nomr"},
			{Expression: "status"},
			{Expression: "title"},
			{Expression: "nama"},
			{Expression: "tempat"},
			{Expression: "tgllahir"},
			{Expression: "jeniskelamin"},
			{Expression: "alamat"},
			{Expression: "kelurahan"},
			{Expression: "kdkecamatan"},
			{Expression: "kota"},
			{Expression: "kdprovinsi"},
			{Expression: "agama"},
			{Expression: "no_kartu"},
			{Expression: "noktp_baru"},
			{Expression: "namakelurahan"},
			{Expression: "namakecamatan"},
			{Expression: "namakota"},
			{Expression: "namaprovinsi"},
		},
		Filters: []queryUtils.FilterGroup{{
			Filters: []queryUtils.DynamicFilter{
				{Column: "id", Operator: queryUtils.OpEqual, Value: id},
				{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"},
			},
			LogicOp: "AND",
		}},
		Limit: 1,
	}

	// Add joins for relationships using the correct structure
	dynamicQuery.Joins = []queryUtils.Join{
		{
			Type:  "LEFT",
			Table: "m_provinsi",
			Alias: "m_provinsi",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdprovinsi", Operator: queryUtils.OpEqual, Value: "m_provinsi.idprovinsi"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kota",
			Alias: "m_kota",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kota", Operator: queryUtils.OpEqual, Value: "m_kota.idkota"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kecamatan",
			Alias: "m_kecamatan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdkecamatan", Operator: queryUtils.OpEqual, Value: "m_kecamatan.idkecamatan"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kelurahan",
			Alias: "m_kelurahan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kelurahan", Operator: queryUtils.OpEqual, Value: "m_kelurahan.idkelurahan"},
				},
			},
		},
	}

	var dataPasien pasienModels.Pasien
	err = h.queryBuilder.ExecuteQueryRow(ctx, dbConn, dynamicQuery, &dataPasien)
	if err != nil {
		if err == sql.ErrNoRows {
			h.respondError(c, "Pasien not found", err, http.StatusNotFound)
		} else {
			h.logAndRespondError(c, "Failed to get pasien", err, http.StatusInternalServerError)
		}
		return
	}

	// Save to cache
	h.cache.Set(cacheKey, dataPasien, 30*time.Minute) // Cache for 30 minutes

	response := pasienModels.PasienGetByIDResponse{
		Message: "Pasien details retrieved successfully",
		Data:    &dataPasien,
	}
	c.JSON(http.StatusOK, response)
}

// GetPasienByNomr godoc
// @Summary Get Pasien by Nomr
// @Description Get pasien by Nomr
// @Tags Pasien
// @Accept json
// @Produce json
// @Success 200 {object} pasienModels.PasienGetByNomrResponse "Success response"
// @Failure 400 {object} models.ErrorResponse "Bad request"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/nomr/:nomr [get]
func (h *PasienHandler) GetPasienByNomr(c *gin.Context) {
	// Increase timeout for complex queries
	ctx, cancel := context.WithTimeout(c.Request.Context(), 120*time.Second)
	defer cancel()

	// Use the core fetchPasiensDynamic function for all data retrieval logic.
	query := queryUtils.DynamicQuery{
		From: "m_pasien",
		Fields: []queryUtils.SelectField{
			{Expression: "id"},
			{Expression: "nomr"},
			{Expression: "status"},
			{Expression: "title"},
			{Expression: "nama"},
			{Expression: "tempat"},
			{Expression: "tgllahir"},
			{Expression: "jeniskelamin"},
			{Expression: "alamat"},
			{Expression: "kelurahan"},
			{Expression: "kdkecamatan"},
			{Expression: "kota"},
			{Expression: "kdprovinsi"},
			{Expression: "agama"},
			{Expression: "no_kartu"},
			{Expression: "noktp_baru"},
			{Expression: "namakelurahan"},
			{Expression: "namakecamatan"},
			{Expression: "namakota"},
			{Expression: "namaprovinsi"},
		},
		Sort: []queryUtils.SortField{{Column: "date_created", Order: "DESC"}},
	}

	// Add joins for relationships using the correct structure
	query.Joins = []queryUtils.Join{
		{
			Type:  "LEFT",
			Table: "m_provinsi",
			Alias: "m_provinsi",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdprovinsi", Operator: queryUtils.OpEqual, Value: "m_provinsi.idprovinsi"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kota",
			Alias: "m_kota",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kota", Operator: queryUtils.OpEqual, Value: "m_kota.idkota"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kecamatan",
			Alias: "m_kecamatan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kdkecamatan", Operator: queryUtils.OpEqual, Value: "m_kecamatan.idkecamatan"},
				},
			},
		},
		{
			Type:  "LEFT",
			Table: "m_kelurahan",
			Alias: "m_kelurahan",
			OnConditions: queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "m_pasien.kelurahan", Operator: queryUtils.OpEqual, Value: "m_kelurahan.idkelurahan"},
				},
			},
		},
	}

	// Parse pagination
	if limit, err := strconv.Atoi(c.DefaultQuery("limit", "10")); err == nil && limit > 0 && limit <= 100 {
		query.Limit = limit
	}
	if offset, err := strconv.Atoi(c.DefaultQuery("offset", "0")); err == nil && offset >= 0 {
		query.Offset = offset
	}

	// Use GetSQLXDB to get database connection
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}

	// Parse simple filters
	var filters []queryUtils.DynamicFilter
	if status := c.Query("status"); status != "" && models.IsValidStatus(status) {
		filters = append(filters, queryUtils.DynamicFilter{Column: "status", Operator: queryUtils.OpEqual, Value: status})
	}

	// Optimize query search with caching
	search := c.Query("search")
	var searchFilters []queryUtils.DynamicFilter
	var cacheKey string
	var useCache bool

	// Initialize searchFilters before using it in the cache hit section
	if search != "" {
		// Limit search length to prevent slow queries
		if len(search) > 50 {
			search = search[:50]
		}

		// Generate cache key for search
		cacheKey = fmt.Sprintf("pasien:search:%s:%d:%d", search, query.Limit, query.Offset)

		// Initialize searchFilters here
		searchFilters = []queryUtils.DynamicFilter{
			{Column: "nomr", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
			{Column: "title", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
			{Column: "nama", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
			{Column: "no_kartu", Operator: queryUtils.OpILike, Value: "%" + search + "%"},
		}

		// Try to get from cache first
		if cachedData, found := h.cache.Get(cacheKey); found {
			logger.Info("Cache hit for search", map[string]interface{}{"search": search, "cache_key": cacheKey})

			// Convert from interface{} to expected type
			pasiens, ok := cachedData.([]pasienModels.Pasien)
			if !ok {
				logger.Error("Failed to convert cached data", map[string]interface{}{"cache_key": cacheKey})
			} else {
				// If requested, get aggregation data
				var aggregateData *models.AggregateData
				if c.Query("include_summary") == "true" {
					// Build full filter groups for aggregate data (including search filters)
					fullFilterGroups := []queryUtils.FilterGroup{
						{Filters: searchFilters, LogicOp: "OR"},
					}
					if len(filters) > 0 {
						fullFilterGroups = append(fullFilterGroups, queryUtils.FilterGroup{Filters: filters, LogicOp: "AND"})
					}
					aggregateData, err = h.getAggregateData(ctx, dbConn, fullFilterGroups)
					if err != nil {
						h.logAndRespondError(c, "Failed to get aggregate data", err, http.StatusInternalServerError)
						return
					}
				}

				// Build response
				meta := h.calculateMeta(query.Limit, query.Offset, len(pasiens))
				response := pasienModels.PasienGetByNomrResponse{
					Message: "Data pasien berhasil diambil (dari cache)",
					Data:    pasiens,
					Meta:    meta,
				}

				if aggregateData != nil {
					response.Summary = aggregateData
				}

				c.JSON(http.StatusOK, response)
				return
			}
		}

		// If not in cache, mark for saving after query
		useCache = true

		// If there's search, create OR filter group
		query.Filters = append(query.Filters, queryUtils.FilterGroup{Filters: searchFilters, LogicOp: "OR"})
	}

	// Add other filters (if any) as AND group
	if len(filters) > 0 {
		query.Filters = append(query.Filters, queryUtils.FilterGroup{Filters: filters, LogicOp: "AND"})
	}

	pasiens, total, err := h.fetchPasiensDynamic(ctx, dbConn, query)
	if err != nil {
		h.logAndRespondError(c, "Failed to fetch data", err, http.StatusInternalServerError)
		return
	}

	// Save search results to cache if there's a search parameter
	if useCache && len(pasiens) > 0 {
		h.cache.Set(cacheKey, pasiens, 15*time.Minute) // Cache for 15 minutes
		logger.Info("Cached search results", map[string]interface{}{"search": search, "cache_key": cacheKey, "count": len(pasiens)})
	}

	// If requested, get aggregation data
	var aggregateData *models.AggregateData
	if c.Query("include_summary") == "true" {
		aggregateData, err = h.getAggregateData(ctx, dbConn, query.Filters)
		if err != nil {
			h.logAndRespondError(c, "Failed to get aggregate data", err, http.StatusInternalServerError)
			return
		}
	}

	// Build response
	meta := h.calculateMeta(query.Limit, query.Offset, total)
	response := pasienModels.PasienGetByNomrResponse{
		Message: "Data pasien berhasil diambil",
		Data:    pasiens,
		Meta:    meta,
	}

	if aggregateData != nil {
		response.Summary = aggregateData
	}

	c.JSON(http.StatusOK, response)
}

// UpdatePasien godoc
// @Summary Update Pasien
// @Description Update an existing pasien
// @Tags Pasien
// @Accept json
// @Produce json
// @Param id path string true "Pasien ID"
// @Param request body pasienModels.PasienUpdateRequest true "Pasien update request"
// @Success 200 {object} pasienModels.PasienUpdateResponse "Pasien updated successfully"
// @Failure 400 {object} models.ErrorResponse "Bad request or validation error"
// @Failure 404 {object} models.ErrorResponse "Pasien not found"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/:nomr [put]
func (h *PasienHandler) UpdatePasien(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		h.respondError(c, "Invalid ID format", fmt.Errorf("id cannot be empty"), http.StatusBadRequest)
		return
	}
	var req pasienModels.PasienUpdateRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		h.respondError(c, "Invalid request body", err, http.StatusBadRequest)
		return
	}
	// Set the ID from path parameter to request
	idInt, err := strconv.Atoi(id)
	if err != nil {
		h.respondError(c, "Invalid ID format", err, http.StatusBadRequest)
		return
	}
	idInt32 := int32(idInt)
	req.ID = &idInt32
	if err := validate.Struct(&req); err != nil {
		h.respondError(c, "Validation failed", err, http.StatusBadRequest)
		return
	}

	// Try to get old data for cache invalidation
	var oldData pasienModels.Pasien
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err == nil {
		ctx, cancel := context.WithTimeout(c.Request.Context(), 5*time.Second)
		defer cancel()

		dynamicQuery := queryUtils.DynamicQuery{
			From:   "m_pasien",
			Fields: []queryUtils.SelectField{{Expression: "*"}},
			Filters: []queryUtils.FilterGroup{{
				Filters: []queryUtils.DynamicFilter{
					{Column: "id", Operator: queryUtils.OpEqual, Value: id},
				},
				LogicOp: "AND",
			}},
			Limit: 1,
		}

		// Add joins for relationships using the correct structure
		dynamicQuery.Joins = []queryUtils.Join{
			{
				Type:  "LEFT",
				Table: "m_provinsi",
				Alias: "m_provinsi",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kdprovinsi", Operator: queryUtils.OpEqual, Value: "m_provinsi.idprovinsi"},
					},
				},
			},
			{
				Type:  "LEFT",
				Table: "m_kota",
				Alias: "m_kota",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kota", Operator: queryUtils.OpEqual, Value: "m_kota.idkota"},
					},
				},
			},
			{
				Type:  "LEFT",
				Table: "m_kecamatan",
				Alias: "m_kecamatan",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kdkecamatan", Operator: queryUtils.OpEqual, Value: "m_kecamatan.idkecamatan"},
					},
				},
			},
			{
				Type:  "LEFT",
				Table: "m_kelurahan",
				Alias: "m_kelurahan",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kelurahan", Operator: queryUtils.OpEqual, Value: "m_kelurahan.idkelurahan"},
					},
				},
			},
		}

		err = h.queryBuilder.ExecuteQueryRow(ctx, dbConn, dynamicQuery, &oldData)
		if err != nil {
			logger.Error("Failed to fetch old data for cache invalidation", map[string]interface{}{"error": err.Error(), "id": id})
		}
	}

	// Use GetSQLXDB to get database connection
	dbConn, err = h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 15*time.Second)
	defer cancel()

	// Validate id must be unique, except for record with this id
	if req.ID != nil {
		rule := validation.ValidationRule{
			TableName:     "m_pasien",
			UniqueColumns: []string{"id"},
			Conditions: []queryUtils.DynamicFilter{
				{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"},
			},
			ExcludeIDColumn: "id", // Exclude based on 'id' column
			ExcludeIDValue:  id,   // ...with id value from parameter
		}

		dataToValidate := map[string]interface{}{
			"id": *req.ID,
		}

		isDuplicate, err := h.validator.Validate(ctx, dbConn, rule, dataToValidate)
		if err != nil {
			h.logAndRespondError(c, "Failed to validate id", err, http.StatusInternalServerError)
			return
		}

		if isDuplicate {
			h.respondError(c, "id already exists", fmt.Errorf("duplicate id: %d", *req.ID), http.StatusConflict)
			return
		}
	}

	// Validate nomr must be unique, except for record with this id
	if req.Nomr != nil && *req.Nomr != "" {
		rule := validation.ValidationRule{
			TableName:     "m_pasien",
			UniqueColumns: []string{"nomr"},
			Conditions: []queryUtils.DynamicFilter{
				{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"},
			},
			ExcludeIDColumn: "id", // Exclude based on 'id' column
			ExcludeIDValue:  id,   // ...with id value from parameter
		}

		dataToValidate := map[string]interface{}{
			"nomr": *req.Nomr,
		}

		isDuplicate, err := h.validator.Validate(ctx, dbConn, rule, dataToValidate)
		if err != nil {
			h.logAndRespondError(c, "Failed to validate nomr", err, http.StatusInternalServerError)
			return
		}

		if isDuplicate {
			h.respondError(c, "nomr already exists", fmt.Errorf("duplicate nomr: %s", *req.Nomr), http.StatusConflict)
			return
		}
	}

	// Validate no_kartu must be unique, except for record with this id
	if req.NoKartu != nil && *req.NoKartu != "" {
		rule := validation.ValidationRule{
			TableName:     "m_pasien",
			UniqueColumns: []string{"no_kartu"},
			Conditions: []queryUtils.DynamicFilter{
				{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"},
			},
			ExcludeIDColumn: "id", // Exclude based on 'id' column
			ExcludeIDValue:  id,   // ...with id value from parameter
		}

		dataToValidate := map[string]interface{}{
			"no_kartu": *req.NoKartu,
		}

		isDuplicate, err := h.validator.Validate(ctx, dbConn, rule, dataToValidate)
		if err != nil {
			h.logAndRespondError(c, "Failed to validate no_kartu", err, http.StatusInternalServerError)
			return
		}

		if isDuplicate {
			h.respondError(c, "no_kartu already exists", fmt.Errorf("duplicate no_kartu: %s", *req.NoKartu), http.StatusConflict)
			return
		}
	}

	updateData := queryUtils.UpdateData{
		Columns: []string{
			"status",
			"date_updated",
			"id",
			"nomr",
			"status",
			"title",
			"nama",
			"tempat",
			"tgllahir",
			"jeniskelamin",
			"alamat",
			"kelurahan",
			"kdkecamatan",
			"kota",
			"kdprovinsi",
			"agama",
			"no_kartu",
			"noktp_baru",
		},
		Values: []interface{}{
			req.Status,
			time.Now(),
			req.ID,
			req.Nomr,
			req.Status,
			req.Title,
			req.Nama,
			req.Tempat,
			req.Tgllahir,
			req.Jeniskelamin,
			req.Alamat,
			req.Kelurahan,
			req.Kdkecamatan,
			req.Kota,
			req.Kdprovinsi,
			req.Agama,
			req.NoKartu,
			req.NoktpBaru,
		},
	}
	filters := []queryUtils.FilterGroup{{
		Filters: []queryUtils.DynamicFilter{
			{Column: "id", Operator: queryUtils.OpEqual, Value: req.ID},
			{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"},
		},
		LogicOp: "AND",
	}}
	returningCols := []string{
		"status",
		"sort", "user_created", "date_created", "user_updated", "date_updated",
		"id",
		"nomr",
		"status",
		"title",
		"nama",
		"tempat",
		"tgllahir",
		"jeniskelamin",
		"alamat",
		"kelurahan",
		"kdkecamatan",
		"kota",
		"kdprovinsi",
		"agama",
		"no_kartu",
		"noktp_baru",
	}

	sql, args, err := h.queryBuilder.BuildUpdateQuery("m_pasien", updateData, filters, returningCols...)
	if err != nil {
		h.logAndRespondError(c, "Failed to build update query", err, http.StatusInternalServerError)
		return
	}

	var dataPasien pasienModels.Pasien
	err = dbConn.GetContext(ctx, &dataPasien, sql, args...)
	if err != nil {
		if err.Error() == "sql: no rows in result set" {
			h.respondError(c, "Pasien not found", err, http.StatusNotFound)
		} else {
			h.logAndRespondError(c, "Failed to update pasien", err, http.StatusInternalServerError)
		}
		return
	}

	// Invalidate cache that might be affected
	// Invalidate cache for id that was updated
	cacheKey := fmt.Sprintf("pasien:id:%s", id)
	h.cache.Delete(cacheKey)

	// Invalidate cache for old and new data
	if oldData.ID != 0 {
		h.invalidateRelatedCache()
	}
	h.invalidateRelatedCache()

	response := pasienModels.PasienUpdateResponse{Message: "Pasien berhasil diperbarui", Data: &dataPasien}
	c.JSON(http.StatusOK, response)
}

// DeletePasien godoc
// @Summary Delete Pasien
// @Description Delete a pasien
// @Tags Pasien
// @Accept json
// @Produce json
// @Param id path string true "Pasien ID"
// @Success 200 {object} pasienModels.PasienDeleteResponse "Pasien deleted successfully"
// @Failure 400 {object} models.ErrorResponse "Invalid ID format"
// @Failure 404 {object} models.ErrorResponse "Pasien not found"
// @Failure 500 {object} models.ErrorResponse "Internal server error"
// @Router /api/v1/pasien/:nomr [delete]
func (h *PasienHandler) DeletePasien(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		h.respondError(c, "Invalid ID format", fmt.Errorf("id cannot be empty"), http.StatusBadRequest)
		return
	}

	// Try to get data for cache invalidation
	var dataToDelete pasienModels.Pasien
	dbConn, err := h.db.GetSQLXDB("postgres_simrs")
	if err == nil {
		ctx, cancel := context.WithTimeout(c.Request.Context(), 5*time.Second)
		defer cancel()

		dynamicQuery := queryUtils.DynamicQuery{
			From:   "m_pasien",
			Fields: []queryUtils.SelectField{{Expression: "*"}},
			Filters: []queryUtils.FilterGroup{{
				Filters: []queryUtils.DynamicFilter{
					{Column: "id", Operator: queryUtils.OpEqual, Value: id},
				},
				LogicOp: "AND",
			}},
			Limit: 1,
		}

		// Add joins for relationships using the correct structure
		dynamicQuery.Joins = []queryUtils.Join{
			{
				Type:  "LEFT",
				Table: "m_provinsi",
				Alias: "m_provinsi",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kdprovinsi", Operator: queryUtils.OpEqual, Value: "m_provinsi.idprovinsi"},
					},
				},
			},
			{
				Type:  "LEFT",
				Table: "m_kota",
				Alias: "m_kota",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kota", Operator: queryUtils.OpEqual, Value: "m_kota.idkota"},
					},
				},
			},
			{
				Type:  "LEFT",
				Table: "m_kecamatan",
				Alias: "m_kecamatan",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kdkecamatan", Operator: queryUtils.OpEqual, Value: "m_kecamatan.idkecamatan"},
					},
				},
			},
			{
				Type:  "LEFT",
				Table: "m_kelurahan",
				Alias: "m_kelurahan",
				OnConditions: queryUtils.FilterGroup{
					Filters: []queryUtils.DynamicFilter{
						{Column: "m_pasien.kelurahan", Operator: queryUtils.OpEqual, Value: "m_kelurahan.idkelurahan"},
					},
				},
			},
		}

		err = h.queryBuilder.ExecuteQueryRow(ctx, dbConn, dynamicQuery, &dataToDelete)
		if err != nil {
			logger.Error("Failed to fetch data for cache invalidation", map[string]interface{}{"error": err.Error(), "id": id})
		}
	}

	// Use GetSQLXDB to get database connection
	dbConn, err = h.db.GetSQLXDB("postgres_simrs")
	if err != nil {
		h.logAndRespondError(c, "Database connection failed", err, http.StatusInternalServerError)
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 15*time.Second)
	defer cancel()

	// Use ExecuteUpdate for soft delete by changing status
	updateData := queryUtils.UpdateData{
		Columns: []string{"status", "date_updated"},
		Values:  []interface{}{"deleted", time.Now()},
	}
	filters := []queryUtils.FilterGroup{{
		Filters: []queryUtils.DynamicFilter{
			{Column: "id", Operator: queryUtils.OpEqual, Value: id},
			{Column: "status", Operator: queryUtils.OpNotEqual, Value: "deleted"},
		},
		LogicOp: "AND",
	}}

	// Use ExecuteUpdate instead of ExecuteDelete
	result, err := h.queryBuilder.ExecuteUpdate(ctx, dbConn, "m_pasien", updateData, filters)
	if err != nil {
		h.logAndRespondError(c, "Failed to delete pasien", err, http.StatusInternalServerError)
		return
	}

	rowsAffected, err := result.RowsAffected()
	if err != nil {
		h.logAndRespondError(c, "Failed to get affected rows", err, http.StatusInternalServerError)
		return
	}
	if rowsAffected == 0 {
		h.respondError(c, "Pasien not found", sql.ErrNoRows, http.StatusNotFound)
		return
	}

	// Invalidate cache that might be affected
	// Invalidate cache for id that was deleted
	cacheKey := fmt.Sprintf("pasien:id:%s", id)
	h.cache.Delete(cacheKey)

	// Invalidate cache for data that was deleted
	if dataToDelete.ID != 0 {
		h.invalidateRelatedCache()
	}

	response := pasienModels.PasienDeleteResponse{Message: "Pasien berhasil dihapus", ID: id}
	c.JSON(http.StatusOK, response)
}

// =============================================================================
// HELPER FUNCTIONS
// =============================================================================

// invalidateRelatedCache invalidates cache that might be affected by data changes
func (h *PasienHandler) invalidateRelatedCache() {
	// Invalidate cache for search that might be affected
	h.cache.DeleteByPrefix("pasien:search:")
	h.cache.DeleteByPrefix("pasien:dynamic:")
	h.cache.DeleteByPrefix("pasien:stats:")
	h.cache.DeleteByPrefix("pasien:id:")
}

// fetchPasiensDynamic executes dynamic query with timeout handling
func (h *PasienHandler) fetchPasiensDynamic(ctx context.Context, dbConn *sqlx.DB, query queryUtils.DynamicQuery) ([]pasienModels.Pasien, int, error) {
	logger.Info("Starting fetchPasiensDynamic", map[string]interface{}{
		"limit":  query.Limit,
		"offset": query.Offset,
		"from":   query.From,
	})

	var total int
	var pasiens []pasienModels.Pasien

	// Check if query has search
	hasSearch := false
	for _, filterGroup := range query.Filters {
		for _, filter := range filterGroup.Filters {
			if filter.Operator == queryUtils.OpILike {
				hasSearch = true
				break
			}
		}
		if hasSearch {
			break
		}
	}

	logger.Info("Query analysis", map[string]interface{}{
		"hasSearch":    hasSearch,
		"totalFilters": len(query.Filters),
	})

	// Optimize to prevent timeout on search queries
	// Use shorter context for search and count queries
	queryCtx, queryCancel := context.WithTimeout(ctx, 30*time.Second)
	defer queryCancel()

	// For search queries, limit maximum to prevent timeout
	if hasSearch {
		search := getSearchTerm(query)
		logger.Info("Executing search query with timeout context", map[string]interface{}{"search_term": search})

		// Limit maximum search limit to prevent timeout
		maxSearchLimit := 50
		if query.Limit > maxSearchLimit {
			query.Limit = maxSearchLimit
			logger.Info("Reduced search limit to prevent timeout", map[string]interface{}{
				"original_limit": query.Limit,
				"new_limit":      maxSearchLimit,
			})
		}

		// Execute search query
		err := h.queryBuilder.ExecuteQuery(queryCtx, dbConn, query, &pasiens)
		if err != nil {
			// Check if it's a PostgreSQL statement timeout error
			if pqErr, ok := err.(*pq.Error); ok && pqErr.Code == "57014" {
				logger.Warn("Search query timed out, trying fallback strategy", map[string]interface{}{
					"search_term": search,
				})

				// Fallback: Search only in the most relevant column
				// We need to rebuild the filters for the fallback
				var fallbackFilters []queryUtils.FilterGroup
				// Add other non-search filters back (e.g., status)
				for _, fg := range query.Filters {
					if fg.LogicOp == "AND" {
						fallbackFilters = append(fallbackFilters, fg)
					}
				}
				// Add the single, more specific search filter
				searchableColumns := []string{
					"nomr",
					"title",
					"nama",
					"no_kartu",
				}
				if len(searchableColumns) > 0 {
					fallbackFilters = append([]queryUtils.FilterGroup{{
						Filters: []queryUtils.DynamicFilter{
							{Column: searchableColumns[0], Operator: queryUtils.OpILike, Value: "%" + search + "%"},
						},
						LogicOp: "AND",
					}}, fallbackFilters...)

					fallbackQuery := query
					fallbackQuery.Filters = fallbackFilters

					// Execute the fallback query with a shorter timeout
					fallbackCtx, fallbackCancel := context.WithTimeout(ctx, 10*time.Second)
					defer fallbackCancel()

					err = h.queryBuilder.ExecuteQuery(fallbackCtx, dbConn, fallbackQuery, &pasiens)
					if err != nil {
						logger.Error("Fallback search query also failed", map[string]interface{}{
							"error": err.Error(),
							"query": fallbackQuery,
						})
						// Return a more user-friendly error
						return nil, 0, fmt.Errorf("search timed out. The search term '%s' is too general. Please try a more specific term", search)
					}
					logger.Info("Fallback search query successful", map[string]interface{}{
						"recordsFetched": len(pasiens),
					})
				}
			} else {
				// It's a different error, handle it as before
				logger.Error("Failed to execute search query", map[string]interface{}{
					"error": err.Error(),
					"query": query,
				})
				return nil, 0, fmt.Errorf("failed to execute search query: %w", err)
			}
		}

		// Estimate total for search query (don't count exact for performance)
		total = len(pasiens)
		if len(pasiens) == query.Limit {
			// If reached limit, estimate there are more data
			total = query.Offset + query.Limit + 100
		} else {
			total = query.Offset + len(pasiens)
		}
	} else {
		logger.Info("Executing regular query without search")

		// For queries without search, count total with shorter timeout
		countCtx, countCancel := context.WithTimeout(ctx, 15*time.Second)
		defer countCancel()

		count, err := h.queryBuilder.ExecuteCount(countCtx, dbConn, query)
		if err != nil {
			// If count failed, fallback to estimation or return error
			logger.Warn("Failed to get exact count, using estimation", map[string]interface{}{"error": err.Error()})
			// For queries without search, we can estimate based on limit
			total = query.Offset + query.Limit + 100 // Conservative estimation
		} else {
			total = int(count)
		}

		logger.Info("Count query successful", map[string]interface{}{
			"count": total,
		})

		// Execute main data query
		err = h.queryBuilder.ExecuteQuery(queryCtx, dbConn, query, &pasiens)
		if err != nil {
			logger.Error("Failed to execute main query", map[string]interface{}{
				"error": err.Error(),
				"query": query,
			})
			return nil, 0, fmt.Errorf("failed to execute main query: %w", err)
		}

		logger.Info("Data query successful", map[string]interface{}{
			"recordsFetched": len(pasiens),
		})
	}

	logger.Info("Query execution completed", map[string]interface{}{
		"totalRecords":    total,
		"returnedRecords": len(pasiens),
		"hasSearch":       hasSearch,
	})

	return pasiens, total, nil
}

// getSearchTerm extracts the search term from a DynamicQuery object.
// It assumes the search is the first filter group with an "OR" logic operator.
func getSearchTerm(query queryUtils.DynamicQuery) string {
	for _, filterGroup := range query.Filters {
		if filterGroup.LogicOp == "OR" && len(filterGroup.Filters) > 0 {
			if valueStr, ok := filterGroup.Filters[0].Value.(string); ok {
				return strings.Trim(valueStr, "%")
			}
		}
	}
	return ""
}

// getAggregateData gets comprehensive statistics about pasien data
func (h *PasienHandler) getAggregateData(ctx context.Context, dbConn *sqlx.DB, filterGroups []queryUtils.FilterGroup) (*models.AggregateData, error) {
	aggregate := &models.AggregateData{
		ByStatus: make(map[string]int),
	}

	var wg sync.WaitGroup
	var mu sync.Mutex
	errChan := make(chan error, 4)

	// 1. Count by status
	wg.Add(1)
	go func() {
		defer wg.Done()
		// Use context with shorter timeout
		queryCtx, queryCancel := context.WithTimeout(ctx, 20*time.Second)
		defer queryCancel()

		query := queryUtils.DynamicQuery{
			From: "m_pasien",
			Fields: []queryUtils.SelectField{
				{Expression: "status"},
				{Expression: "COUNT(*)", Alias: "count"},
			},
			Filters: filterGroups,
			GroupBy: []string{"status"},
		}
		var results []struct {
			Status string `db:"status"`
			Count  int    `db:"count"`
		}
		err := h.queryBuilder.ExecuteQuery(queryCtx, dbConn, query, &results)
		if err != nil {
			errChan <- fmt.Errorf("status query failed: %w", err)
			return
		}
		mu.Lock()
		for _, result := range results {
			aggregate.ByStatus[result.Status] = result.Count
			switch result.Status {
			case "active":
				aggregate.TotalActive = result.Count
			case "draft":
				aggregate.TotalDraft = result.Count
			case "inactive":
				aggregate.TotalInactive = result.Count
			}
		}
		mu.Unlock()
	}()

	// 4. Get last updated and today's stats
	wg.Add(1)
	go func() {
		defer wg.Done()
		// Use context with shorter timeout
		queryCtx, queryCancel := context.WithTimeout(ctx, 20*time.Second)
		defer queryCancel()

		// Last updated
		query1 := queryUtils.DynamicQuery{
			From:    "m_pasien",
			Fields:  []queryUtils.SelectField{{Expression: "MAX(date_updated)"}},
			Filters: filterGroups,
		}
		var lastUpdated sql.NullTime
		err := h.queryBuilder.ExecuteQueryRow(queryCtx, dbConn, query1, &lastUpdated)
		if err != nil {
			errChan <- fmt.Errorf("last updated query failed: %w", err)
			return
		}

		// Using QueryBuilder for today's statistics
		today := time.Now().Format("2006-01-02")

		// Query for created_today
		createdTodayQuery := queryUtils.DynamicQuery{
			From: "m_pasien",
			Fields: []queryUtils.SelectField{
				{Expression: "COUNT(*)", Alias: "count"},
			},
			Filters: append(filterGroups, queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "DATE(date_created)", Operator: queryUtils.OpEqual, Value: today},
				},
				LogicOp: "AND",
			}),
		}

		var createdToday int
		err = h.queryBuilder.ExecuteQueryRow(queryCtx, dbConn, createdTodayQuery, &createdToday)
		if err != nil {
			errChan <- fmt.Errorf("created today query failed: %w", err)
			return
		}

		// Query for updated_today (updated today but not created today)
		updatedTodayQuery := queryUtils.DynamicQuery{
			From: "m_pasien",
			Fields: []queryUtils.SelectField{
				{Expression: "COUNT(*)", Alias: "count"},
			},
			Filters: append(filterGroups, queryUtils.FilterGroup{
				Filters: []queryUtils.DynamicFilter{
					{Column: "DATE(date_updated)", Operator: queryUtils.OpEqual, Value: today},
					{Column: "DATE(date_created)", Operator: queryUtils.OpNotEqual, Value: today},
				},
				LogicOp: "AND",
			}),
		}

		var updatedToday int
		err = h.queryBuilder.ExecuteQueryRow(queryCtx, dbConn, updatedTodayQuery, &updatedToday)
		if err != nil {
			errChan <- fmt.Errorf("updated today query failed: %w", err)
			return
		}

		mu.Lock()
		if lastUpdated.Valid {
			aggregate.LastUpdated = &lastUpdated.Time
		}
		aggregate.CreatedToday = createdToday
		aggregate.UpdatedToday = updatedToday
		mu.Unlock()
	}()

	wg.Wait()
	close(errChan)

	for err := range errChan {
		if err != nil {
			return nil, err
		}
	}

	return aggregate, nil
}

// logAndRespondError logs an error and sends a JSON response
func (h *PasienHandler) logAndRespondError(c *gin.Context, message string, err error, statusCode int) {
	logger.Error(message, map[string]interface{}{"error": err.Error(), "status_code": statusCode})
	h.respondError(c, message, err, statusCode)
}

// respondError sends a standardized JSON error response
func (h *PasienHandler) respondError(c *gin.Context, message string, err error, statusCode int) {
	errorMessage := message
	if gin.Mode() == gin.ReleaseMode {
		errorMessage = "Internal server error"
	}
	c.JSON(statusCode, models.ErrorResponse{Error: errorMessage, Code: statusCode, Message: err.Error(), Timestamp: time.Now()})
}

// calculateMeta creates pagination metadata
func (h *PasienHandler) calculateMeta(limit, offset, total int) models.MetaResponse {
	totalPages, currentPage := 0, 1
	if limit > 0 {
		totalPages = (total + limit - 1) / limit
		currentPage = (offset / limit) + 1
	}
	return models.MetaResponse{
		Limit: limit, Offset: offset, Total: total, TotalPages: totalPages,
		CurrentPage: currentPage, HasNext: offset+limit < total, HasPrev: offset > 0,
	}
}