package medicationrequest

import (
	"context"
	"database/sql"
	"fmt"

	"service/internal/infrastructure/database"
	"service/pkg/logger"
	"service/pkg/utils/query"
)

type Repository interface {
	GetNextMedicationRequest(ctx context.Context, lastID int64) (*MedicationRequestDB, error)
	SaveSatuSehatID(ctx context.Context, idx int64, fhirID string) error
	SaveSyncLog(ctx context.Context, logData MedicationRequestSyncLog) error
}

type repository struct {
	dbManager database.Service
}

func NewRepository(dbManager database.Service) Repository {
	return &repository{dbManager: dbManager}
}

func (r *repository) GetNextMedicationRequest(ctx context.Context, lastID int64) (*MedicationRequestDB, error) {
	var mr MedicationRequestDB
	simrsDB, err := r.dbManager.GetSQLXDB("simrs")
	if err != nil {
		return nil, err
	}

	qb := query.NewSQLQueryBuilder(query.DBTypePostgreSQL).
		SetSecurityOptions(false, 0).
		SetQueryLogging(false).
		SetAllowedColumns([]string{"idxpesanobat", `"IDXDAFTAR"`, `"KDDOKTER"`})

	type simrsRow struct {
		IdxPesanObat int64           `db:"idxpesanobat"`
		No           sql.NullString  `db:"no"`
		IdxDaftar    int64           `db:"idxdaftar"`
		KdDokter     sql.NullString  `db:"kddokter"`
		JmlhKeluar   sql.NullFloat64 `db:"jmlh_keluar"`
		Sediaan      sql.NullString  `db:"sediaan"`
		CreatedAt    sql.NullTime    `db:"created_at"`
		TglPesan     sql.NullTime    `db:"tgl_pesan"`
		AturanPakai  sql.NullString  `db:"aturan_pakai"`
	}
	var row simrsRow

	qSimrs := query.DynamicQuery{
		From: "public.t_permintaan_apotek_rajal",
		Fields: []query.SelectField{
			{Expression: "idxpesanobat"},
			{Expression: "no"},
			{Expression: "idxdaftar"},
			{Expression: "kddokter"},
			{Expression: "jmlh_keluar"},
			{Expression: "sediaan"},
			{Expression: "created_at"},
			{Expression: "tgl_pesan"},
			{Expression: "aturan_pakai"},
		},
		Filters: []query.FilterGroup{
			{
				Filters: []query.DynamicFilter{
					query.CreateFilter("idxpesanobat", query.OpGreaterThan, lastID),
				},
			},
		},
		Sort: []query.SortField{
			query.CreateAscSort("idxpesanobat"),
		},
		Limit: 1,
	}

	err = qb.ExecuteQueryRow(ctx, simrsDB, qSimrs, &row)
	if err != nil {
		return nil, err
	}

	mr.IdxPesanObat = row.IdxPesanObat
	mr.No = row.No.String
	mr.IdxDaftar = row.IdxDaftar
	mr.KdDokter = row.KdDokter.String
	mr.JmlhKeluar = row.JmlhKeluar.Float64
	mr.Sediaan = row.Sediaan.String
	mr.AturanPakai = row.AturanPakai.String
	if row.CreatedAt.Valid {
		mr.CreatedAt = row.CreatedAt.Time
	} else if row.TglPesan.Valid {
		mr.CreatedAt = row.TglPesan.Time
	} else {
		mr.CreatedAt = logger.LocalNow()
	}

	satudataDB, err := r.dbManager.GetSQLXDB("satudata")
	if err != nil {
		return nil, fmt.Errorf("gagal koneksi ke database satudata: %w", err)
	}

	// Ambil PatientID dan EncounterID dari tabel public.data_kunjungan_pasien di database satudata
	if mr.IdxDaftar > 0 {
		type kunjunganRow struct {
			PatientID   sql.NullString `db:"Nomor_satusehat_pasien"`
			EncounterID sql.NullString `db:"IDXDAFTAR_satusehat"`
		}
		var kRow kunjunganRow
		qKunjungan := query.DynamicQuery{
			From: "public.data_kunjungan_pasien",
			Fields: []query.SelectField{
				{Expression: `"Nomor_satusehat_pasien"`},
				{Expression: `"IDXDAFTAR_satusehat"`},
			},
			Filters: []query.FilterGroup{
				{Filters: []query.DynamicFilter{query.CreateEqualFilter(`"IDXDAFTAR"`, mr.IdxDaftar)}},
			},
			Limit: 1,
		}
		qb.ExecuteQueryRow(ctx, satudataDB, qKunjungan, &kRow)
		mr.PatientID = kRow.PatientID.String
		mr.EncounterID = kRow.EncounterID.String
	}

	// Ambil PractitionerID dari tabel public.data_pegawai di database satudata
	if mr.KdDokter != "" {
		type pegawaiRow struct {
			PractitionerID sql.NullString `db:"Kode_satusehat"`
		}
		var pRow pegawaiRow
		qPegawai := query.DynamicQuery{
			From: "public.data_pegawai",
			Fields: []query.SelectField{
				{Expression: `"Kode_satusehat"`},
			},
			Filters: []query.FilterGroup{
				{Filters: []query.DynamicFilter{query.CreateEqualFilter(`"KDDOKTER"`, mr.KdDokter)}},
			},
			Limit: 1,
		}
		qb.ExecuteQueryRow(ctx, satudataDB, qPegawai, &pRow)
		mr.PractitionerID = pRow.PractitionerID.String
	}

	return &mr, nil
}

func (r *repository) SaveSatuSehatID(ctx context.Context, idx int64, fhirID string) error {
	simrsDB, err := r.dbManager.GetSQLXDB("simrs")
	if err != nil {
		return err
	}
	qb := query.NewSQLQueryBuilder(query.DBTypePostgreSQL).
		SetSecurityOptions(false, 0).
		SetQueryLogging(false).
		SetAllowedColumns([]string{"status_bridging", "idxpesanobat"})
	_, err = qb.ExecuteUpdate(ctx, simrsDB, "public.t_permintaan_apotek_rajal", query.UpdateData{Columns: []string{"status_bridging"}, Values: []interface{}{fhirID}}, []query.FilterGroup{query.CreateAndFilterGroup([]query.DynamicFilter{query.CreateEqualFilter("idxpesanobat", idx)})})
	return err
}

func (r *repository) SaveSyncLog(ctx context.Context, logData MedicationRequestSyncLog) error {
	simrsDB, err := r.dbManager.GetSQLXDB("simrs")
	if err != nil {
		return err
	}
	qb := query.NewSQLQueryBuilder(query.DBTypePostgreSQL).
		SetSecurityOptions(false, 0).
		SetQueryLogging(false).
		SetAllowedColumns([]string{"idxpesanobat", "medicationrequest_id", "request_payload", "response_payload", "status", "error_message"})
	insertData := query.InsertData{
		Columns: []string{"idxpesanobat", "medicationrequest_id", "request_payload", "response_payload", "status", "error_message"},
		Values:  []interface{}{logData.IdxPesanObat, logData.MedicationRequestID, logData.RequestPayload, logData.ResponsePayload, logData.Status, logData.ErrorMessage},
	}
	_, err = qb.ExecuteUpsert(ctx, simrsDB, "public.log_satusehat_medicationrequest", insertData, []string{"idxpesanobat"}, []string{"medicationrequest_id", "request_payload", "response_payload", "status", "error_message"})
	return err
}