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path: root/pkg/gui/controllers/helpers/worktree_helper.go
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package helpers

import (
	"errors"
	"fmt"
	"io/fs"
	"log"
	"os"
	"strings"

	"github.com/jesseduffield/gocui"
	"github.com/jesseduffield/lazygit/pkg/commands/models"
	"github.com/jesseduffield/lazygit/pkg/gui/types"
	"github.com/jesseduffield/lazygit/pkg/utils"
)

type IWorktreeHelper interface {
	GetMainWorktreeName() string
	GetCurrentWorktreeName() string
}

type WorktreeHelper struct {
	c           *HelperCommon
	reposHelper *ReposHelper
}

func NewWorktreeHelper(c *HelperCommon, reposHelper *ReposHelper) *WorktreeHelper {
	return &WorktreeHelper{
		c:           c,
		reposHelper: reposHelper,
	}
}

func (self *WorktreeHelper) GetMainWorktreeName() string {
	for _, worktree := range self.c.Model().Worktrees {
		if worktree.Main() {
			return worktree.Name()
		}
	}

	return ""
}

func (self *WorktreeHelper) IsCurrentWorktree(w *models.Worktree) bool {
	pwd, err := os.Getwd()
	if err != nil {
		log.Fatalln(err.Error())
	}

	return pwd == w.Path
}

func (self *WorktreeHelper) IsWorktreePathMissing(w *models.Worktree) bool {
	if _, err := os.Stat(w.Path); err != nil {
		if errors.Is(err, fs.ErrNotExist) {
			return true
		}
		log.Fatalln(fmt.Errorf("failed to check if worktree path `%s` exists\n%w", w.Path, err).Error())
	}
	return false
}

func (self *WorktreeHelper) NewWorktree() error {
	return self.c.Prompt(types.PromptOpts{
		Title: self.c.Tr.NewWorktreePath,
		HandleConfirm: func(path string) error {
			return self.c.Prompt(types.PromptOpts{
				Title: self.c.Tr.NewWorktreePath,
				HandleConfirm: func(committish string) error {
					return self.c.WithWaitingStatus(self.c.Tr.AddingWorktree, func(gocui.Task) error {
						self.c.LogAction(self.c.Tr.Actions.AddWorktree)
						if err := self.c.Git().Worktree.New(sanitizedBranchName(path), committish); err != nil {
							return err
						}
						return self.c.Refresh(types.RefreshOptions{Mode: types.ASYNC, Scope: []types.RefreshableView{types.WORKTREES, types.BRANCHES, types.FILES}})
					})
				},
			})
		},
	})
}

func (self *WorktreeHelper) Switch(worktree *models.Worktree, contextKey types.ContextKey) error {
	if self.c.Git().Worktree.IsCurrentWorktree(worktree) {
		return self.c.ErrorMsg(self.c.Tr.AlreadyInWorktree)
	}

	self.c.LogAction(self.c.Tr.SwitchToWorktree)

	return self.reposHelper.DispatchSwitchTo(worktree.Path, true, self.c.Tr.ErrWorktreeMovedOrRemoved, contextKey)
}

func (self *WorktreeHelper) Remove(worktree *models.Worktree, force bool) error {
	title := self.c.Tr.RemoveWorktreeTitle
	var templateStr string
	if force {
		templateStr = self.c.Tr.ForceRemoveWorktreePrompt
	} else {
		templateStr = self.c.Tr.RemoveWorktreePrompt
	}
	message := utils.ResolvePlaceholderString(
		templateStr,
		map[string]string{
			"worktreeName": worktree.Name(),
		},
	)

	return self.c.Confirm(types.ConfirmOpts{
		Title:  title,
		Prompt: message,
		HandleConfirm: func() error {
			return self.c.WithWaitingStatus(self.c.Tr.RemovingWorktree, func(gocui.Task) error {
				self.c.LogAction(self.c.Tr.RemoveWorktree)
				if err := self.c.Git().Worktree.Delete(worktree.Path, force); err != nil {
					errMessage := err.Error()
					if !strings.Contains(errMessage, "--force") {
						return self.c.Error(err)
					}

					if !force {
						return self.Remove(worktree, true)
					}
					return self.c.ErrorMsg(errMessage)
				}
				return self.c.Refresh(types.RefreshOptions{Mode: types.ASYNC, Scope: []types.RefreshableView{types.WORKTREES, types.BRANCHES, types.FILES}})
			})
		},
	})
}

func (self *WorktreeHelper) Detach(worktree *models.Worktree) error {
	return self.c.WithWaitingStatus(self.c.Tr.DetachingWorktree, func(gocui.Task) error {
		self.c.LogAction(self.c.Tr.RemovingWorktree)

		err := self.c.Git().Worktree.Detach(worktree.Path)
		if err != nil {
			return self.c.Error(err)
		}
		return self.c.Refresh(types.RefreshOptions{Mode: types.ASYNC, Scope: []types.RefreshableView{types.WORKTREES, types.BRANCHES, types.FILES}})
	})
}