package main

import (
	"fmt"
	"hash/crc32"
	"path/filepath"
	"regexp"
	"runtime"
	"strconv"
	"strings"

	"github.com/PumpkinSeed/cage"
	"github.com/gohugoio/hugo/commands"
	hg "github.com/gohugoio/hugo/common/hugo"
	"github.com/spf13/viper"
)

func hugoContext(hugo *Hugo, gitRepoPath string) {
	viper.SetConfigName("config")
	viper.SetConfigType("toml")
	viper.AddConfigPath(filepath.Join(hugo.SourceDir))
	err := viper.ReadInConfig()
	check(err)
	gitRepoPathChecksum := strconv.FormatUint(uint64(crc32.ChecksumIEEE([]byte(gitRepoPath))), 16)
	reg, err := regexp.Compile("[^a-zA-Z0-9]+")
	check(err)
	hugoTitle := reg.ReplaceAllString(viper.GetString("title"), "")
	hugo.PublicHTMLName = strings.ToLower(hugoTitle) + "-" + gitRepoPathChecksum
	hugo.CatalogName = viper.GetString("params.sandpointsCatalogName")
	hugo.CatalogPrefix = viper.GetString("params.sandpointsCatalogPrefix")
	hugo.DestinationDir = filepath.Join(hugo.SourceDir, "public")
}

func hugoRun(hugoCommands []string) []string {
	logs := cage.Start()
	hugoCommand := hugoCommands
	err := commands.Execute(hugoCommand)
	if err != nil {
		check(err)
		runtime.Goexit()
	}
	cage.Stop(logs)

	return logs.Data
}

func hugoRender(hugo *Hugo, hook *Hook) string {
	// fmt.Println("hugo", "-s", hugo.SourceDir, "-d", hugo.DestinationDir, "--templateMetrics")
	hugoCommands := []string{"-s", hugo.SourceDir, "-d", hugo.DestinationDir, "--templateMetrics"}
	if hook.Offline {
		hugoCommands = append(hugoCommands, []string{"-e", "offline"}...)
	} else if hook.Context == "PostReceive" {
		hugoCommands = append(hugoCommands, []string{"-e", "gitea"}...)
	}
	logs := hugoRun(hugoCommands)

	lgs := fmt.Sprintf("~~~~~~~ Hugo's logs (v0.%d)~~~~~~~\n", hg.CurrentVersion.Minor)
	for _, l := range logs {
		lgs = lgs + l + "\n"
	}
	return lgs
}