// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is governed by the GPL 3.0

package main

import (
	"fmt"
	"os"
	"sync"

	"go.wit.com/lib/gadgets"
	"go.wit.com/lib/protobuf/forgepb"
	"go.wit.com/lib/protobuf/gitpb"
	"go.wit.com/log"

	"go.wit.com/gui"
)

type repoProblemsWindow struct {
	once  sync.Once            // only init() the window once
	win   *gadgets.BasicWindow // the patches window
	stack *gui.Node            // the top box set as vertical
	shelf *gui.Node            // the first box in the stack, set as horizontal
	grid  *gui.Node            // the list of available patches
	// summary *patchSummary        // summary of current patches
	setgrid *gui.Node         // the list of each patchset
	pset    *forgepb.Patchset // the patchset in question
}

// todo: autogenerate these or make them standared 'gui' package functions
// make this an go interface somehow

// is the window hidden right now?
func (w *repoProblemsWindow) Hidden() bool {
	return w.win.Hidden()
}

// switches between the window being visable or hidden on the desktop
func (w *repoProblemsWindow) Toggle() {
	if w.Hidden() {
		w.Show()
	} else {
		w.Hide()
	}
}

// hides the window completely
func (w *repoProblemsWindow) Show() {
	w.win.Show()
}

func (w *repoProblemsWindow) Hide() {
	w.win.Hide()
}

// should be the first box/widget in the window
// greys out the window to the user
func (w *repoProblemsWindow) Disable() {
	w.stack.Disable()
}

func (w *repoProblemsWindow) Enable() {
	w.stack.Enable()
}

// you can only have one of these
func makeRepoProblemsWindow() *repoProblemsWindow {
	pw := new(repoProblemsWindow)

	// sync.Once()
	pw.win = gadgets.RawBasicWindow("Potential Repo Problems")
	pw.win.Make()
	pw.win.Show()

	pw.stack = pw.win.Box().NewBox("bw vbox", false)
	pw.win.Custom = func() {
		// sets the hidden flag to false so Toggle() works
		pw.win.Hide()
	}
	pw.stack.NewGroup("things (these don't work yet)")

	grid := pw.stack.RawGrid()
	var found *gitpb.Repos
	var txt string

	found = develBehindMasterProblem()
	txt = fmt.Sprintf("devel is behind master (%d)", found.Len())
	grid.NewButton(txt, func() {
		win := gadgets.RawBasicWindow("devel branches that are out of sync with master")
		win.Make()
		win.Show()
		win.Custom = func() {
			// sets the hidden flag to false so Toggle() works
			win.Hide()
		}
		box := win.Box().NewBox("bw vbox", false)

		found := develBehindMasterProblem()
		group := box.NewGroup("test buttons")
		hbox := group.Box().Horizontal()
		hbox.NewButton("git merge master devel", func() {
			all := found.SortByFullPath()
			for all.Scan() {
				repo := all.Next()
				mname := repo.GetMasterBranchName()
				dname := repo.GetDevelBranchName()
				cmd := []string{"git", "merge", mname, dname}
				log.Info(repo.GetGoPath(), cmd)
			}
		})
		hbox.NewButton("test", func() {
		})

		t := makeStandardReposGrid(found)
		t.SetParent(box)
		t.ShowTable()
	})

	found = remoteUserBranchProblem()
	txt = fmt.Sprintf("user branch is remote (%d)", found.Len())
	grid.NewButton(txt, func() {
		win := gadgets.RawBasicWindow("repos that seem to have remote user branches")
		win.Make()
		win.Show()
		win.Custom = func() {
			// sets the hidden flag to false so Toggle() works
			win.Hide()
		}
		box := win.Box().NewBox("bw vbox", false)

		found := remoteUserBranchProblem()
		group := box.NewGroup("test buttons")
		hbox := group.Box().Horizontal()
		hbox.NewButton("git branch delete", func() {
			win.Disable()
			defer win.Enable()
			all := found.SortByFullPath()
			for all.Scan() {
				repo := all.Next()
				brname := repo.GetUserBranchName()
				// git push origin --delete jcarr
				os.Setenv("GIT_TERMINAL_PROMPT", "0")
				cmd := []string{"git", "push", "origin", "--delete", brname}
				log.Info("You may want to run:", repo.GetGoPath(), cmd)
				repo.RunVerbose(cmd)
				os.Unsetenv("GIT_TERMINAL_PROMPT")

				// git branch --delete --remote origin/jcarr
				cmd = []string{"git", "branch", "--delete", "--remote", "origin/" + brname}
				log.Info(repo.GetGoPath(), cmd)
				repo.RunVerbose(cmd)
				repo.Reload()
			}
			me.forge.SetConfigSave(true)
			me.forge.ConfigSave()
		})

		t := makeStandardReposGrid(found)
		t.SetParent(box)
		t.ShowTable()
	})

	grid.NewButton("unknown branches", func() {
		log.Info("not done yet")
	})
	grid.NextRow()

	found = develRemoteProblem()
	txt = fmt.Sprintf("remote devel != local devel (%d)", found.Len())
	grid.NewButton(txt, func() {
		found := develRemoteProblem()
		makeStandardReposWindow(txt, found)
	})

	found = masterRemoteProblem()
	txt = fmt.Sprintf("remote master != local master (%d)", found.Len())
	grid.NewButton(txt, func() {
		found := masterRemoteProblem()
		makeStandardReposWindow(txt, found)
	})
	grid.NextRow()

	return pw
}

func develBehindMasterProblem() *gitpb.Repos {
	log.Info("not done yet")
	found := new(gitpb.Repos)
	all := me.forge.Repos.SortByFullPath()
	for all.Scan() {
		repo := all.Next()
		if repo.GetDevelVersion() == repo.GetMasterVersion() {
			continue
		}
		found.AppendByGoPath(repo)

	}
	return found
}

func remoteUserBranchProblem() *gitpb.Repos {
	found := new(gitpb.Repos)
	all := me.forge.Repos.SortByFullPath()
	for all.Scan() {
		repo := all.Next()
		username := repo.GetUserBranchName()
		if repo.IsBranchRemote(username) {
			found.AppendByGoPath(repo)
		}

	}
	return found
}

func develRemoteProblem() *gitpb.Repos {
	found := new(gitpb.Repos)
	all := me.forge.Repos.SortByFullPath()
	for all.Scan() {
		repo := all.Next()
		brname := repo.GetDevelBranchName()
		if !repo.IsBranchRemote(brname) {
			// log.Info("repo does not have remote devel branch", repo.GetGoPath())
			continue
		}
		lhash := repo.GetLocalHash(brname)
		rhash := repo.GetRemoteHash(brname)
		// log.Info(lhash, rhash, repo.GetGoPath())
		if lhash == "" || rhash == "" {
			// something is wrong if either of these are blank
			found.AppendByGoPath(repo)
			continue
		}
		if lhash == rhash {
			continue
		}
		found.AppendByGoPath(repo)

	}
	return found
}

func masterRemoteProblem() *gitpb.Repos {
	found := new(gitpb.Repos)
	all := me.forge.Repos.SortByFullPath()
	for all.Scan() {
		repo := all.Next()
		brname := repo.GetMasterBranchName()
		if !repo.IsBranchRemote(brname) {
			// log.Info("repo does not have remote devel branch", repo.GetGoPath())
			continue
		}
		lhash := repo.GetLocalHash(brname)
		rhash := repo.GetRemoteHash(brname)
		// log.Info(lhash, rhash, repo.GetGoPath())
		if lhash == "" || rhash == "" {
			// something is wrong if either of these are blank
			found.AppendByGoPath(repo)
			continue
		}
		if lhash == rhash {
			continue
		}
		found.AppendByGoPath(repo)

	}
	return found
}