package service

import (
	"context"
	"fmt"
	"html/template"
	"math"
	"net/http"
	"time"

	"git.tijl.dev/tijl/tijl.dev-core/internal/apps/flags"
	"git.tijl.dev/tijl/tijl.dev-core/internal/apps/inflation"
	"git.tijl.dev/tijl/tijl.dev-core/internal/apps/uploader"
	"git.tijl.dev/tijl/tijl.dev-core/internal/assets"
	"git.tijl.dev/tijl/tijl.dev-core/internal/config"
	"git.tijl.dev/tijl/tijl.dev-core/internal/handlers"
	"git.tijl.dev/tijl/tijl.dev-core/internal/oidc"
	webinternal "git.tijl.dev/tijl/tijl.dev-core/internal/web"
	"git.tijl.dev/tijl/tijl.dev-core/locales"
	"git.tijl.dev/tijl/tijl.dev-core/modules/db"
	"git.tijl.dev/tijl/tijl.dev-core/modules/i18n"
	"git.tijl.dev/tijl/tijl.dev-core/modules/logger"
	"git.tijl.dev/tijl/tijl.dev-core/modules/web"
	webf "git.tijl.dev/tijl/tijl.dev-core/web"
	"github.com/gofiber/contrib/fiberzerolog"
	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/compress"
	"github.com/gofiber/fiber/v2/middleware/helmet"
	"github.com/gofiber/template/html/v2"
)

func Listen() {
	// Load initial context
	ctx := context.Background()

	// setup logger
	log.Load()
	// Load config
	config.Load()
	// Load database
	db.Load()
	// Setup oidc
	oidc.Load(ctx)
	// Load assets
	assets.Load()
	// Load translations
	i18n.RegisterTranslations(locales.Embed, ".")
	// setup handler
	handlers.Setup()

	// setup apps
	flags.Setup()
	uploader.Setup()
	inflation.Setup()

	// setup web
	webinternal.Load()

	log.Info().Msg("started internal services")

	// Init templating engine
	engine := html.NewFileSystem(http.FS(webf.ViewsEmbed), ".html")
	engine.Directory = "views"
	engine.AddFunc("icon", assets.Svg)
	engine.AddFunc("incfloat", func(a, b float64) float64 {
		return math.Round((a+b)*1e8) / 1e8
	})
	engine.AddFunc("formatdate", func(t time.Time) string {
		return t.Format("2 Jan 2006")
	})
	engine.AddFunc("safe", func(s string) template.HTML {
		return template.HTML(s)
	})
	engine.AddFunc("safeurl", func(s string) template.URL {
		return template.URL(s)
	})

	// Init fiber
	app := fiber.New(fiber.Config{
		Views:                 engine,
		DisableStartupMessage: true,
		BodyLimit:             4 * 1024 * 1024 * 1024,
	})
	app.Use(fiberzerolog.New(fiberzerolog.Config{
		Logger: &log.Logger,
	}))
	app.Use(compress.New(compress.Config{
		Level: compress.LevelBestSpeed,
	}))
	app.Use(helmet.New(helmet.Config{}))

	// Setup routes
	web.Setup(app)

	// Listen web server
	log.Info().Int("port", config.Config.Port).Str("host", config.Config.Host).Msg("listening")
	if err := app.Listen(fmt.Sprintf("%v:%v", config.Config.Host, config.Config.Port)); err != nil {
		log.Fatal().Err(err).Msg("Fiber app error")
	}

}