package main

import (
	_ "embed"
	"encoding/json"
	"fmt"
	"log"
	"os"
)

//go:embed html/index.tmpl
var indexTemplate string

//go:embed html/entry.tmpl
var entryTemplate string

func main() {

	var err error
	var configuration BlogConfiguration
	args := os.Args[1:]

	home := os.Getenv("HOME")
	err = os.MkdirAll(fmt.Sprintf("%s/.config/", home), 0600)
	if err != nil {
		log.Fatal(err)
	}
	configurationFileName := fmt.Sprintf("%s/.config/mailblog.json", home)
	log.Println("Mailblog starting using", configurationFileName)

	file, err := os.Open(configurationFileName)
	if err == nil {
		defer file.Close()
		decoder := json.NewDecoder(file)
		err = decoder.Decode(&configuration)
		if err != nil {
			log.Fatal(err)
		}
	}

	if len(args) > 0 {
		switch args[0] {
		case "configure":
			configuration.Prompt()
			file, err = os.Create(fmt.Sprintf("%s/.config/mailblog.json", home))
			if err != nil {
				log.Fatal(err)
			}
			encoder := json.NewEncoder(file)
			err = encoder.Encode(configuration)
			if err != nil {
				log.Fatal(err)
			}
			fmt.Printf("Configuration save in %s/.config/mailblob.json\n", home)
			return
		}
	}

	var blog Blog
	blog.Lang = "fr-FR"
	blog.Title = configuration.Title
	go MailboxFetcher(configuration, &blog)
	StartServer(&blog)
}

func MailboxFetcher(configuration BlogConfiguration, blog *Blog) {

	var mb MailBox
	mb.Configure(&configuration.MailBox)
	err := mb.Connect()
	if err != nil {
		log.Fatal(err)
	}
	defer mb.Close()

	posts, err := mb.GetMessages()
	if err != nil {
		log.Println(err)
	}
	blog.mutex.Lock()
	defer blog.mutex.Unlock()
	blog.Posts = posts
}