// Command webfilebrowser starts the HTTP server for the file browser.
package main

import (
	"errors"
	"log/slog"
	"net/http"
	"os"

	"webfilebrowser/internal/auth"
	"webfilebrowser/internal/config"
	"webfilebrowser/internal/web"
)

const (
	defaultAddress      = ":8080"
	defaultDatabasePath = "/var/lib/webfilebrowser/webfilebrowser.db"
)

func main() {
	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
	applicationConfig, err := config.Load()
	if err != nil {
		logger.Error("load root configuration", "error", err)
		os.Exit(1)
	}

	for _, root := range applicationConfig.Roots {
		logger.Info("configured browse root", "name", root.Name, "path", root.Path)
	}

	databasePath := os.Getenv("WEB_FILE_BROWSER_DATABASE_PATH")
	if databasePath == "" {
		databasePath = defaultDatabasePath
	}
	store, err := auth.Open(databasePath, auth.Options{})
	if err != nil {
		logger.Error("open authentication database", "error", err)
		os.Exit(1)
	}
	defer func() {
		if err := store.Close(); err != nil {
			logger.Error("close authentication database", "error", err)
		}
	}()

	address := os.Getenv("WEB_FILE_BROWSER_ADDR")
	if address == "" {
		address = defaultAddress
	}

	server := &http.Server{
		Addr:    address,
		Handler: web.New(store, applicationConfig.Roots...),
	}
	logger.Info("starting web file browser", "address", address)
	if err := server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
		logger.Error("serve HTTP", "error", err)
		os.Exit(1)
	}
}