package server

import (
	"fes/modules/config"
	"fes/modules/gemini"
	"fes/modules/ui"
	"fmt"
	"net/http"
	"os"
	"path/filepath"
	"sync"
)

var Routes map[string]string
var Sets DeclarativeSets

func Start(dir string) {
	if err := os.Chdir(dir); err != nil {
		ui.Error(fmt.Sprintf("failed to change directory to %s", dir), err)
	}

	root := filepath.Clean(dir)

	if root == "." {
		if res, err := filepath.Abs(root); err == nil {
			root = filepath.Base(res)
		} else {
			ui.Error("failed to get absolute path", err)
		}
	}

	ui.Log("running root=%s, port=%d.", root, *config.Port)

	ui.LogVerbose("start loading directories")
	Routes = loadDirs()

	http.HandleFunc("/", httpHandler)
	gemini.HandleFunc("/", geminiHandler)

	var wg sync.WaitGroup
	errs := make(chan error, 2)

	wg.Add(2)

	go func() {
		defer wg.Done()
		errs <- http.ListenAndServe(fmt.Sprintf("0.0.0.0:%d", *config.Port), nil)
	}()

	go func() {
		defer wg.Done()
		errs <- gemini.ListenAndServeTLS(fmt.Sprintf("0.0.0.0:%d", *config.Port-1035), "cert.pem", "key.pem", nil)
	}()

	ui.Log("Server initialized")
	wg.Wait()
	close(errs)

	var collected []error

	for err := range errs {
		if err != nil {
			collected = append(collected, err)
		}
	}

	if len(collected) > 0 {
		fmt.Printf("errors: %v\n", collected)
		return
	}
}