package main

import (
	"embed"
	"fmt"
	"io/fs"
	"log"
	"net/http"

	"git.readonly.ch/bouzoure/popvaud-people/controllers"
	"git.readonly.ch/bouzoure/popvaud-people/helpers"
	"git.readonly.ch/bouzoure/popvaud-people/middlewares"
	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/filesystem"
	loggerMiddleware "github.com/gofiber/fiber/v2/middleware/logger"
	"github.com/gofiber/helmet/v2"
	"github.com/gofiber/template/django/v3"
)

//go:embed static/*
var embedStatic embed.FS

//go:embed views
var embedViews embed.FS

func main() {
	config, err := helpers.GetConfig()
	if err != nil {
		// TODO: Handle exception
		log.Fatal(err)
	}

	_, err = helpers.GetDatabase()
	if err != nil {
		// TODO: Handle exception
		log.Fatal(err)
	}

	accountCheck, err := helpers.FirstAccountCheck()
	if err != nil {
		// TODO: Handle exception
		log.Fatal(err)
	}

	if !accountCheck {
		err = helpers.FirstAccountCreate()
		if err != nil {
			// TODO: Handle exception
			log.Fatal(err)
		}
	}

	// Create a new engine
	var engine *django.Engine
	if config.Debug {
		engine = django.New("./views", ".html")
		engine.ShouldReload = true
	} else {
		embedViews2, err := fs.Sub(embedViews, "views")
		if err != nil {
			log.Fatal(err)
		}

		engine = django.NewFileSystem(
			http.FS(embedViews2),
			".html",
		)
	}

	app := fiber.New(fiber.Config{
		Views: engine,
	})

	if config.Debug {
		app.Static("/static", "./static")
	} else {
		app.Use("/static", filesystem.New(filesystem.Config{
			Root:       http.FS(embedStatic),
			PathPrefix: "static",
			Browse:     false,
		}))
	}

	// Base middlewares
	app.Use(loggerMiddleware.New())
	app.Use(helmet.New())

	// Security middlewares
	app.Use(middlewares.AuthMiddleware)
	app.Use(middlewares.WelcomeMiddleware)
	app.Use(middlewares.MfaEnrollMiddleware)
	app.Use(middlewares.MfaVerifyMiddleware)
	app.Use(middlewares.TemplatesMiddleware)
	app.Use("/admin", middlewares.AuthzAdmin)

	// Homepage
	app.Get("/", controllers.Homepage)

	// Login & logout
	app.Get("/login", controllers.LoginForm)
	app.Post("/login", controllers.LoginForm)
	app.Get("/logout", controllers.LogoutProcess)

	// Welcome page on first login
	app.Get("/welcome", controllers.WelcomePage)
	app.Post("/welcome", controllers.WelcomePage)

	// TOTP enroll & verify
	app.Get("/totp/enroll", controllers.TotpEnrollPage)
	app.Post("/totp/enroll", controllers.TotpEnrollPage)
	app.Get("/totp/verify", controllers.TotpVerifyPage)
	app.Post("/totp/verify", controllers.TotpVerifyPage)

	// Admin: Lists
	app.Get("/admin/lists", controllers.Lists)
	app.Get("/admin/lists/:id<int;min(0)>", controllers.ListShow)
	app.Get("/admin/lists/add", controllers.ListAdd)
	app.Post("/admin/lists/add", controllers.ListAdd)
	app.Get("/admin/lists/:id<int;min(0)>/edit", controllers.ListEdit)
	app.Post("/admin/lists/:id<int;min(0)>/edit", controllers.ListEdit)
	app.Delete("/admin/lists/:id<int;min(0)>", controllers.ListDelete)
	app.Get("/admin/lists/:id<int;min(0)>/items/add", controllers.ListItemAdd)
	app.Post("/admin/lists/:id<int;min(0)>/items/add", controllers.ListItemAdd)
	app.Get("/admin/lists/:id<int;min(0)>/items/:id<int;min(0)>", controllers.ListItemEdit)
	app.Post("/admin/lists/:id<int;min(0)>/items/:id<int;min(0)>", controllers.ListItemEdit)
	app.Delete("/admin/lists/:id<int;min(0)>/items/:id<int;min(0)>", controllers.ListItemDelete)

	listenAddr := fmt.Sprintf(
		"%s:%d",
		config.App.ListenAddress,
		config.App.ListenPort,
	)

	err = app.Listen(listenAddr)
	if err != nil {
		log.Fatal(err)
	}
}