package app

import (
	"database/sql"

	"github.com/dmitriygnatenko/internal/interfaces"
	"github.com/dmitriygnatenko/internal/repositories"
	cacheService "github.com/dmitriygnatenko/internal/services/cache"
	configService "github.com/dmitriygnatenko/internal/services/config"
	dbService "github.com/dmitriygnatenko/internal/services/db"
	envService "github.com/dmitriygnatenko/internal/services/env"
	mailService "github.com/dmitriygnatenko/internal/services/mailer"
	routerService "github.com/dmitriygnatenko/internal/services/router"
	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/cors"
	"github.com/gofiber/fiber/v2/middleware/recover"
)

const webDir = "../../web"

type App struct {
	db                *sql.DB
	env               interfaces.IEnv
	cache             interfaces.ICache
	mailer            interfaces.IMailer
	articleRepository interfaces.IArticleRepository
	tagRepository     interfaces.ITagRepository

	fiber *fiber.App
}

func Init() (*App, error) {
	app := &App{}

	// Init env service
	env, err := envService.Init()
	if err != nil {
		return nil, err
	}
	app.env = env

	// Init DB
	db, err := dbService.Init(app.GetEnvService())
	if err != nil {
		return nil, err
	}
	app.db = db

	// Init repositories
	app.articleRepository = repositories.InitArticleRepository(app.GetDBService())
	app.tagRepository = repositories.InitTagRepository(app.GetDBService())

	// Init cache service
	app.cache = cacheService.Init()

	// Init mailer
	app.mailer = mailService.Init(app.GetEnvService())

	// Init fiber
	app.fiber = fiber.New(configService.Init(app))

	// Init routes and handlers
	routerService.ApplyRoutes(app)

	// Configure web root
	app.fiber.Static("/", webDir)

	// Configure CORS middleware
	app.fiber.Use(cors.New())

	// Configure recover middleware
	app.fiber.Use(recover.New())

	return app, nil
}

func (a *App) Run() error {
	return a.fiber.Listen(":" + a.env.GetAppPort())
}

func (a *App) GetDBService() *sql.DB {
	return a.db
}

func (a *App) GetEnvService() interfaces.IEnv {
	return a.env
}

func (a *App) GetCacheService() interfaces.ICache {
	return a.cache
}

func (a *App) GetMailerService() interfaces.IMailer {
	return a.mailer
}

func (a *App) GetArticleRepository() interfaces.IArticleRepository {
	return a.articleRepository
}

func (a *App) GetTagRepository() interfaces.ITagRepository {
	return a.tagRepository
}

func (a *App) GetFiber() *fiber.App {
	return a.fiber
}