package initer

import (
	"errors"
	"flag"
	"fmt"
	"os"
	"path/filepath"

	finstr "git.fireandbrimst.one/aw/finstr/initer"
	goutil "git.fireandbrimst.one/aw/goutil/misc"
	"git.fireandbrimst.one/aw/wombat/gallery"
)

const (
	initflag = ".wombat"
)

var checkpaths []string = []string{initflag, "stage0", "template", "style.css", "script.js"}

func dumpInitFiles() error {
	err := goutil.WriteFile("template", defaultTemplate)
	if err != nil {
		return err
	}
	err = goutil.WriteFile("rssTemplate", defaultRSSTemplate)
	if err != nil {
		return err
	}
	err = goutil.WriteFile("style.css", defaultStyle)
	if err != nil {
		return err
	}
	err = goutil.WriteFile("script.js", defaultScript)
	if err != nil {
		return err
	}
	err = goutil.WriteFile(filepath.Join("stage0", "index.md"), defaultIndex)
	if err != nil {
		return err
	}
	return gallery.New(finstr.IniterFlags{})
}

func isInitialized() bool {
	for _, path := range checkpaths {
		if !goutil.PathExists(path) {
			return false
		}
	}
	return true
}

func initialize() error {
	var err error
	if !isInitialized() {
		dir, err := os.Getwd()
		if err != nil {
			return err
		}
		fmt.Println("Initializing " + dir)
		err = goutil.WriteFile(initflag, "")
		if err != nil {
			return err
		}
		err = os.Mkdir("stage0", 0755)
		if err != nil {
			return err
		}
		err = os.Mkdir("stage0/blog", 0755)
		if err != nil {
			return err
		}
		err = dumpInitFiles()
	}
	return err
}

func InitializedOrDie() {
	if !isInitialized() {
		dir, err := os.Getwd()
		if err == nil {
			err = errors.New(dir + " is not an initialized wombat directory")
		}
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}

type initializeFlags struct {
	style string
}

func Command() (goutil.CommandFlagsInit, goutil.CommandFunc) {
	flagsInit := func(s *flag.FlagSet) {
	}
	return flagsInit, func([]string) error {
		return initialize()
	}
}