package main

import (
	"fmt"
	"strconv"
	"sync"

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

	"go.wit.com/gui"
)

type patchesWindow 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
	// setlist map[string]*forgepb.Patchset // a map of the patch names to the protobuf
	// setwin  map[string]*patchWindow      // a map of the patch names to the protobuf
}

func (r *patchesWindow) Hidden() bool {
	return r.win.Hidden()
}

func (r *patchesWindow) Toggle() {
	if r.Hidden() {
		r.Show()
	} else {
		r.Hide()
	}
}

func (r *patchesWindow) Show() {
	r.win.Show()
}

func (r *patchesWindow) Hide() {
	r.win.Hide()
}

func (r *patchesWindow) Disable() {
	r.stack.Disable()
}

func (r *patchesWindow) Enable() {
	r.stack.Enable()
}

// you can only have one of these
func (r *patchesWindow) initWindow() {
	// sync.Once()
	r.win = gadgets.RawBasicWindow("Forge Patchesets")
	r.win.Make()

	r.stack = r.win.Box().NewBox("bw vbox", false)
	// me.reposwin.Draw()
	r.win.Custom = func() {
		log.Warn("Patchset Window close. setting hidden=true")
		// sets the hidden flag to false so Toggle() works
		r.win.Hide()
	}

	r.grid = r.stack.NewGrid("", 0, 0)

	/*
			r.shelf = r.initGroup()
			group1 := r.stack.NewGroup("stuff")
			vbox := group1.Box()
		      vbox.Vertical()
	*/

	r.summary = r.submitPatchesBox(r.stack)

	// update the stats about the repos and patches
	r.summary.Update()

	g := r.stack.NewGroup("Patchset List")

	// add the grid
	r.setgrid = g.NewGrid("", 0, 0)
}

type patchSummary struct {
	grid             *gui.Node
	updateB          *gui.Node
	docsB            *gui.Node
	gitPushB         *gui.Node
	gitPullB         *gui.Node
	checkB           *gui.Node
	totalOL          *gadgets.OneLiner
	dirtyOL          *gadgets.OneLiner
	readonlyOL       *gadgets.OneLiner
	rw               *gadgets.OneLiner
	totalPatchesOL   *gadgets.OneLiner
	totalUserRepos   *gui.Node
	totalDevelRepos  *gui.Node
	totalMasterRepos *gui.Node
	// totalUserPatches   *gui.Node
	totalDevelPatches  *gui.Node
	totalMasterPatches *gui.Node
	// fileCount          *gui.Node
	unknownOL      *gadgets.BasicEntry
	unknownSubmitB *gui.Node
	reason         *gadgets.BasicEntry
	submitB        *gui.Node
	// allp               []*repolist.Patch
}

func (r *patchesWindow) submitPatchesBox(box *gui.Node) *patchSummary {
	s := new(patchSummary)
	group1 := box.NewGroup("Repo Summary")
	s.grid = group1.RawGrid()

	s.totalOL = gadgets.NewOneLiner(s.grid, "Total")
	// _ = s.grid.NewLabel("total changes")
	// _ = s.grid.NewLabel("user to devel")
	s.grid.NextRow()

	s.dirtyOL = gadgets.NewOneLiner(s.grid, "dirty")
	_ = s.grid.NewLabel("") // skip a column
	s.totalUserRepos = s.grid.NewLabel("x go repos")
	s.grid.NextRow()

	s.readonlyOL = gadgets.NewOneLiner(s.grid, "read-only")
	_ = s.grid.NewLabel("") // skip a column
	// s.totalUserPatches = s.grid.NewLabel("x patches")
	s.grid.NextRow()

	s.rw = gadgets.NewOneLiner(s.grid, "r/w")
	_ = s.grid.NewLabel("") // skip a column
	// s.fileCount = s.grid.NewLabel("x files")
	s.grid.NextRow()

	group1 = box.NewGroup("Patchset Create")
	s.grid = group1.RawGrid()

	s.grid.NewButton("current patch summary", func() {
		s.Update()
		pset, err := me.forge.MakeDevelPatchSet("current patches")
		if err != nil {
			log.Info("patchset creation failed", err)
			return
		}
		if pset == nil {
			log.Info("you have no current patches")
			return
		}
		win := makePatchWindow(pset)
		win.Show()
	})

	s.reason = gadgets.NewBasicEntry(s.grid, "Patchset name:")
	s.reason.Custom = func() {
		if s.reason.String() != "" {
			s.submitB.Enable()
		} else {
			s.submitB.Disable()
		}
	}
	s.submitB = s.grid.NewButton("Submit", func() {
		pset, err := me.forge.SubmitDevelPatchSet(s.reason.String())
		if err != nil {
			log.Info(err)
			return
		}
		// line := "somedate " + s.reason.String() + " Author: me" + pset.GitAuthorEmail
		r.addPatchsetNew(pset)
	})
	s.grid.NewButton("Get Patchsets", func() {
		if psets, err := me.forge.GetPatchesets(); err != nil {
			log.Info("Get Patchsets failed", err)
			return
		} else {
			log.Info("got psets len", len(psets.Patchsets))
			// all := psets.All()
			all := psets.SortByName()
			for all.Scan() {
				pset := all.Next()
				r.addPatchsetNew(pset)
			}
		}
	})

	s.submitB.Disable()
	s.grid.NextRow()
	return s
}

func (r *patchesWindow) addPatchsetNew(pset *forgepb.Patchset) {
	r.setgrid.NewLabel(pset.Name)
	r.setgrid.NewLabel(pset.Comment)
	r.setgrid.NewLabel(pset.GitAuthorName)

	var win *patchWindow
	r.setgrid.NewButton("View", func() {
		// has the window already been created?
		if win != nil {
			// it has been already created. just show it
			win.Toggle()
			log.Info("TRYING TO TOGGLE WINDOW")
			return
		}

		win = makePatchWindow(pset)
		win.Show()
	})
	r.setgrid.NextRow()
}

// does not run any commands
func (s *patchSummary) Update() {
	var total, dirty, readonly, rw int
	var userT int // , develT, masterT int
	// var userP, develP, masterP int
	// broken after move to forge protobuf
	all := me.forge.Repos.SortByFullPath()
	for all.Scan() {
		repo := all.Next()
		total += 1
		if repo.IsDirty() {
			dirty += 1
		}
		if me.forge.Config.IsReadOnly(repo.GetGoPath()) {
			readonly += 1
		} else {
			rw += 1
		}
	}
	s.totalOL.SetText(strconv.Itoa(total) + " repos")
	s.dirtyOL.SetText(strconv.Itoa(dirty) + " repos")
	s.readonlyOL.SetText(strconv.Itoa(readonly) + " repos")
	s.rw.SetText(fmt.Sprintf("%d repos", rw))
	s.totalUserRepos.SetText(strconv.Itoa(userT) + " repos")
}