package gitpb

import (
	"strings"

	"go.wit.com/log"
)

func (repo *Repo) Reload() error {
	repo.Tags = new(GitTags)
	repo.reloadGitTags()

	repo.GoDeps = new(GoDeps)
	repo.ParseGoSum()

	if repo.GoInfo != nil {
		repo.ReloadGo()
	}

	repo.setLastTag()
	repo.setCurrentBranchName()

	// everything has been checked, now save the mtime's
	repo.RepoChanged()
	return nil
}

func (repo *Repo) ReloadGo() error {
	repo.GoPlugin = false
	repo.GoProtobuf = false
	repo.GoLibrary = false
	repo.GoBinary = false
	switch repo.goListRepoType() {
	case "plugin":
		repo.GoPlugin = true
	case "protobuf":
		repo.GoProtobuf = true
	case "library":
		repo.GoLibrary = true
	case "binary":
		repo.GoBinary = true
	}
	return nil
}

func (repo *Repo) SetDevelBranchName(bname string) {
	repo.DevelBranchName = bname
}

func (repo *Repo) SetUserBranchName(bname string) {
	repo.UserBranchName = bname
}

// updates LastTag // todo, get this from the protobuf
func (repo *Repo) setLastTag() {
	cmd := []string{"git", "rev-list", "--tags", "--max-count=1"}
	result := repo.RunQuiet(cmd)
	// log.Info("getLastTagVersion()", result.Stdout)

	if len(result.Stdout) != 1 {
		log.Log(GITPBWARN, "git LastTag() error:", result.Stdout)
		repo.LastTag = ""
		return
	}

	hash := result.Stdout[0]

	cmd = []string{"git", "describe", "--tags", "--always", hash}
	result = repo.RunQuiet(cmd)

	if len(result.Stdout) != 1 {
		log.Log(GITPBWARN, "git LastTag() error:", result.Stdout)
		repo.LastTag = ""
		return
	}

	repo.LastTag = result.Stdout[0]
}

func (repo *Repo) setCurrentBranchName() {
	repo.CurrentBranchName = ""
	r := repo.RunQuiet([]string{"git", "branch", "--show-current"})
	output := strings.Join(r.Stdout, "\n")
	if r.Error != nil {
		log.Log(GITPBWARN, "GetCurrentBranchName() not in a git repo?", r.Error, repo.GoPath)
		log.Log(GITPBWARN, "GetCurrentBranchName() output might have worked anyway:", output)
	}
	repo.CurrentBranchName = strings.TrimSpace(output)
}

// always spawns 'git' and always should spawn 'git'
func (repo *Repo) setCurrentBranchVersion() {
	repo.CurrentBranchVersion = ""
	if repo == nil {
		log.Info("repo.GetCurrentBranchVersion() repo == nil")
		return
	}
	r := repo.RunQuiet([]string{"git", "describe", "--tags", "--always"})
	output := strings.Join(r.Stdout, "\n")
	if r.Error != nil {
		log.Log(GITPBWARN, "GetCurrentBranchVersion() not in a git repo?", r.Error, repo.GoPath)
		log.Log(GITPBWARN, "GetCurrentBranchVersion() output might have worked anyway:", output)
	}
	repo.CurrentBranchVersion = strings.TrimSpace(output)
}