package web

import (
	"context"
	"net/http"
	"os"
	"regexp"

	"codeberg.org/u1f320/filer/db"
	"github.com/go-chi/chi/v5"
	"github.com/go-chi/chi/v5/middleware"
	"github.com/go-chi/cors"
	"github.com/rs/zerolog/log"
)

type App struct {
	chi.Router

	db *db.DB
}

func New(db *db.DB) *App {
	r := chi.NewMux()
	r.Use(middleware.Recoverer)
	r.Use(requestLogger)
	r.Use(cors.Handler(cors.Options{
		AllowedOrigins: []string{"https://*", "http://*"},
		AllowedMethods: []string{"GET", "OPTIONS"},
		MaxAge:         300,
	}))

	app := &App{
		Router: r,
		db:     db,
	}

	app.Get("/{hash}/{filename}", app.showFile)
	app.Post("/upload", app.uploadFile)

	return app
}

var portRegex = regexp.MustCompile(`^\d{2,}$`)

func (app *App) Run(ctx context.Context) {
	port := os.Getenv("PORT")
	if !portRegex.MatchString(port) {
		log.Error().Str("port", port).Msg("$PORT is not a valid integer")
		return
	}

	listenAddr := ":" + port

	ech := make(chan error)
	go func() {
		ech <- http.ListenAndServe(listenAddr, app)
	}()

	log.Info().Str("port", port).Msg("Running server")
	if err := <-ech; err != nil {
		log.Err(err).Msg("Running server")
	}
}