package repolist

import (
	"errors"
	"io/ioutil"
	"os"
	"path/filepath"
	"strings"

	"go.wit.com/lib/gui/repostatus"
	"go.wit.com/log"
)

func (v *RepoList) InitRepoList(cfgfile string) {
	v.cfgfile = cfgfile
	lines := parsecfg(cfgfile)
	for _, line := range lines {
		var repo *RepoRow
		var err error
		line = strings.TrimSpace(line)
		if line == "" {
			// skip empty lines
			continue
		}
		if strings.HasPrefix(line, "#") {
			// skip config file comment lines
			continue
		}
		parts := strings.Split(line, " ")
		var private bool = false
		var readonly bool = false
		var userdir bool = false
		if len(parts) > 1 {
			repodir := parts[0]
			for _, s := range parts[1:] {
				option := strings.Split(s, "=")
				if len(option) != 2 {
					log.Log(REPOWARN, "can not parse cfgfile line:", line)
					continue
				}
				switch option[0] {
				case "private":
					if option[1] == "true" {
						log.Log(REPOWARN, repodir, "setting private to true")
						private = true
					} else {
						log.Log(REPOWARN, repodir, "setting private to false")
						private = false
					}
				case "readonly":
					if option[1] == "true" {
						log.Log(REPOWARN, repodir, "setting ReadOnly to true")
						readonly = true
					} else {
						log.Log(REPOWARN, repodir, "setting ReadOnly to false")
						readonly = false
					}
				case "userdir":
					if option[1] == "true" {
						log.Log(REPOWARN, repodir, "setting this directory as Writable()")
						userdir = true
					} else {
						userdir = false
					}
				default:
					log.Log(REPOWARN, "unknown config file option", s)
				}
			}
		}
		if userdir {
			log.Log(REPOWARN, "add this as a writable dir", line)
			continue
		}
		if len(parts) > 0 {
			path := parts[0]
			repo, err = v.NewRepo(path)
		}
		if err != nil {
			log.Log(REPOWARN, line, "repo could not be added", err)
			continue
		}
		if repo == nil {
			// there is not a new repo
			continue
		}
		if private {
			repo.Status.SetPrivate(true)
		} else {
			repo.Status.SetPrivate(false)
		}
		if readonly {
			repo.Status.SetReadOnly(true)
		} else {
			repo.Status.SetReadOnly(false)
		}
	}
}

func parsecfg(f string) []string {
	homeDir, _ := os.UserHomeDir()
	cfgfile := filepath.Join(homeDir, f)
	content, err := ioutil.ReadFile(cfgfile)
	if err != nil {
		log.Log(REPOWARN, "read cfgfile error", err)
		return nil
	}
	out := string(content)
	out = strings.TrimSpace(out)
	lines := strings.Split(out, "\n")
	return lines
}

func (rl *RepoList) ArgGitPull() bool {
	var localonly int
	var badmap int

	log.Log(REPOWARN, "running git pull everywhere")
	var failed int = 0
	for _, repo := range rl.AllRepos() {
		if out, err := repo.Status.GitPull(); err == nil {
			log.Log(REPOWARN, "Ran git pull ok", repo.Status.Path(), out)
		} else {
			failed += 1
			repo.Status.DumpTags()
			if errors.Is(repostatus.ErrorGitPullOnLocal, err) {
				localonly += 1
				continue
			}
			badmap += 1
			log.Log(REPOWARN, "bad unknown git error", repo.Status.Path(), out, err)
		}
	}
	log.Log(REPOWARN, "Ran git pull in all repos. failure count =", failed)
	log.Log(REPOWARN, "Ran git pull in all repos. bad errors =", badmap)
	if localonly != 0 {
		log.Log(REPOWARN, "Ran git pull in all repos. ignored local only branches =", localonly)
	}
	return true
}

func (rl *RepoList) ArgCheckoutDevel() bool {
	log.Log(REPOWARN, "running git checkout devel everwhere")
	var failed int = 0
	var count int = 0
	for _, repo := range rl.AllRepos() {
		count += 1
		if repo.Status.CheckoutDevel() {
			// checkout ok
		} else {
			failed += 1
		}
	}
	log.Log(REPOWARN, "Ran git checkout in", count, "repos. failure count =", failed)
	return true
}

func (rl *RepoList) ArgCheckoutMaster() bool {
	log.Log(REPOWARN, "running git checkout master everwhere")
	var failed int = 0
	var count int = 0
	for _, repo := range rl.AllRepos() {
		count += 1
		if repo.Status.CheckoutMaster() {
			// checkout ok
		} else {
			failed += 1
		}
	}
	log.Log(REPOWARN, "Ran git checkout in", count, "repos. failure count =", failed)
	return true
}

func (rl *RepoList) ArgCheckoutUser() bool {
	log.Log(REPOWARN, "running git checkout master everwhere")
	var failed int = 0
	var count int = 0
	for _, repo := range rl.AllRepos() {
		count += 1
		if repo.Status.CheckoutUser() {
			// checkout ok
		} else {
			failed += 1
		}
	}
	log.Log(REPOWARN, "Ran git checkout in", count, "repos. failure count =", failed)
	return true
}

func (rl *RepoList) Cfgfile() string {
	return rl.cfgfile
}