package database

import (
	"api_es/internal/config"
	"api_es/internal/models"
	"api_es/pkg/logger"
	"fmt"
	"log"

	"go.uber.org/zap"
	"gorm.io/driver/postgres"
	"gorm.io/gorm"
)

func NewPostgresConnection(cfg *config.Config) (*gorm.DB, error) {
	zapLogger := logger.Get()
	zapLogger.Info("Start connect to Postgres DB")
    dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%s sslmode=disable TimeZone=UTC",
        cfg.DBHost, cfg.DBUser, cfg.DBPassword, cfg.DBName, cfg.DBPort)
	zapLogger.Info("dsn = %s", zap.String("dsn", dsn))


    db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
    if err != nil {
        return nil, fmt.Errorf("failed to connect to database: %w", err)
    }

	zapLogger.Info("AutoMigrate models")
    // Автомиграция
    if err := autoMigrate(db); err != nil {
        return nil, fmt.Errorf("can't migrate models, error = %s", err)
    }
	zapLogger.Info("Migrate complite successfully")

    log.Println("Successfully connected to database")
    return db, nil
}

func autoMigrate(db *gorm.DB) error {
    // автоматические миграции GORM
    return db.AutoMigrate(
        &models.User{},
        // другие модели...
    )
}