package repolist

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

	"go.wit.com/log"
)

func (v *RepoList) InitRepoList(cfgfile string) {
	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) ArgCheckoutUser() bool {
	log.Log(REPOWARN, "running git checkout devel everwhere")
	var failed int = 0
	for _, repo := range rl.AllRepos() {
		if repo.Status.ReadOnly() {
			// log.Log(REPOWARN,"skipping read-only", repo.Name())
			continue
		}
		if repo.Status.CheckDirty() {
			log.Log(REPOWARN, "skipping dirty repo", repo.Name())
			continue
		}
		branch := repo.Status.GetUserBranchName()
		if branch == repo.Status.GetCurrentBranchName() {
			// already on user branch
			continue
		}
		cmd := []string{"git", "checkout", branch}
		log.Log(REPOWARN, "Running:", cmd, "in", repo.Name())
		err, output := repo.RunCmd(cmd)
		if err == nil {
			log.Log(REPOWARN, "git checkout worked", output)
		} else {
			failed += 1
			log.Log(REPOWARN, "git checkout failed")
			log.Log(REPOWARN, "Something went wrong. Got err", err)
			log.Log(REPOWARN, "output =", output)
			// return false
		}
	}
	log.Log(REPOWARN, "Ran git checkout in all repos. failure count =", failed)
	return true
}

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() {
		log.Log(REPOWARN, "Running:", repo.Status.Path())
		if err := repo.Status.GitPull(); err == nil {
		} else {
			failed += 1
			repo.Status.DumpTags()
			name := repo.Status.GetCurrentBranchName()
			if repo.Status.IsOnlyLocalTag(name) {
				log.Log(REPOWARN, repo.Status.Path(), "can not git pull on local only branch", name, err)
			} else {
				log.Log(REPOWARN, repo.Status.Path(), "this branch should have worked", name, err)
			}
			if fmt.Sprint(err) == "git config error" {
				badmap += 1
				continue
			}
			if fmt.Sprint(err) == "local only" {
				localonly += 1
				continue
			}
			return false
		}
	}
	log.Log(REPOWARN, "Ran git pull in all repos. failure count =", failed)
	log.Log(REPOWARN, "Ran git pull in all repos. git config map 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
	for _, repo := range rl.AllRepos() {
		if repo.Status.ReadOnly() {
			// log.Log(REPOWARN,"skipping read-only", repo.Name())
			continue
		}
		if repo.CheckDirty() {
			log.Log(REPOWARN, "skipping dirty repo", repo.Name())
			continue
		}
		branch := repo.Status.GetDevelBranchName()
		cmd := []string{"git", "checkout", branch}
		log.Log(REPOWARN, "Running:", cmd, "in", repo.Name())
		err, output := repo.RunCmd(cmd)
		if err == nil {
			log.Log(REPOWARN, "git checkout worked", output)
		} else {
			failed += 1
			log.Log(REPOWARN, "git checkout failed")
			log.Log(REPOWARN, "Something went wrong. Got err", err)
			log.Log(REPOWARN, "output =", output)
			// return false
		}
	}
	log.Log(REPOWARN, "Ran git checkout in all repos. failure count =", failed)
	return true
}