package svc

import (
	"fmt"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
	"gorm.io/gorm"
	"photography-backend/internal/config"
	"photography-backend/internal/middleware"
	"photography-backend/internal/model"
	"photography-backend/pkg/utils/database"
)

type ServiceContext struct {
	Config        config.Config
	DB            *gorm.DB
	UserModel     model.UserModel
	PhotoModel    model.PhotoModel
	CategoryModel model.CategoryModel
	Middleware    *middleware.MiddlewareManager
}

func NewServiceContext(c config.Config) *ServiceContext {
	db, err := database.NewDB(c.Database)
	if err != nil {
		panic(err)
	}

	// Create sqlx connection for go-zero models
	sqlxConn := sqlx.NewSqlConn(getSQLDriverName(c.Database.Driver), getSQLDataSource(c.Database))

	return &ServiceContext{
		Config:        c,
		DB:            db,
		UserModel:     model.NewUserModel(sqlxConn),
		PhotoModel:    model.NewPhotoModel(sqlxConn),
		CategoryModel: model.NewCategoryModel(sqlxConn),
		Middleware:    middleware.NewMiddlewareManager(c),
	}
}

func getSQLDriverName(driver string) string {
	switch driver {
	case "mysql":
		return "mysql"
	case "postgres":
		return "postgres"
	case "sqlite":
		return "sqlite3"
	default:
		return "mysql"
	}
}

func getSQLDataSource(config database.Config) string {
	switch config.Driver {
	case "mysql":
		return fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=%s&parseTime=True&loc=Local",
			config.Username, config.Password, config.Host, config.Port, config.Database, config.Charset)
	case "postgres":
		return fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%d sslmode=%s TimeZone=Asia/Shanghai",
			config.Host, config.Username, config.Password, config.Database, config.Port, config.SSLMode)
	case "sqlite":
		return config.FilePath
	default:
		return ""
	}
}