package handlers

import (
	"context"
	"fmt"
	"net/http"
	"time"

	"api-service/internal/config"
	services "api-service/internal/services/bpjs"

	"github.com/gin-gonic/gin"
)

// PesertaHandler handles BPJS participant operations
type PesertaHandler struct {
	bpjsService services.VClaimService
}

// NewPesertaHandler creates a new PesertaHandler instance
func NewPesertaHandler(cfg config.BpjsConfig) *PesertaHandler {
	return &PesertaHandler{
		bpjsService: services.NewService(cfg),
	}
}

// GetPesertaByNIK godoc
// @Summary Get participant data by NIK
// @Description Search participant data based on Population NIK and service date
// @Tags bpjs
// @Accept json
// @Produce json
// @Param nik path string true "NIK KTP"
// @Param tglSEP path string true "Service date/SEP date (format: yyyy-MM-dd)"
// @Success 200 {object} map[string]interface{} "Participant data"
// @Failure 400 {object} map[string]interface{} "Bad request"
// @Failure 404 {object} map[string]interface{} "Participant not found"
// @Failure 500 {object} map[string]interface{} "Internal server error"
// @Router /api/v1/bpjs/Peserta/nik/{nik}/tglSEP/{tglSEP} [get]
func (h *PesertaHandler) GetPesertaByNIK(c *gin.Context) {
	nik := c.Param("nik")
	tglSEP := c.Param("tglSEP")

	// Validate parameters
	if nik == "" {
		c.JSON(http.StatusBadRequest, gin.H{
			"error":   "NIK parameter is required",
			"message": "NIK KTP tidak boleh kosong",
		})
		return
	}

	if tglSEP == "" {
		c.JSON(http.StatusBadRequest, gin.H{
			"error":   "tglSEP parameter is required",
			"message": "Tanggal SEP tidak boleh kosong",
		})
		return
	}

	// Validate date format
	if _, err := time.Parse("2006-01-02", tglSEP); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{
			"error":   "Invalid date format",
			"message": "Format tanggal harus yyyy-MM-dd",
		})
		return
	}

	// Create context with timeout
	ctx, cancel := context.WithTimeout(c.Request.Context(), 30*time.Second)
	defer cancel()

	// Build endpoint URL
	endpoint := fmt.Sprintf("/Peserta/nik/%s/tglSEP/%s", nik, tglSEP)

	// Call BPJS service
	var result map[string]interface{}
	if err := h.bpjsService.Get(ctx, endpoint, &result); err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{
			"error":   "Failed to fetch participant data",
			"message": err.Error(),
		})
		return
	}

	// Return successful response
	c.JSON(http.StatusOK, gin.H{
		"message": "Data peserta berhasil diambil",
		"data":    result,
	})
}