package main

import (
	"slices"
	"strings"
	"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)
	r.setlist = make(map[string]*forgepb.Patchset)
	r.setwin = make(map[string]*patchWindow)

	// query for current patchsets
	lines, err := listPatches()
	if err != nil {
		log.Info(err)
		return
	}
	slices.Reverse(lines)
	count := 0
	for i, line := range lines {
		log.Info(i, line)
		count += 1
		if count < 10 {
			r.addPatchset(line)
		}
	}
	log.Info("Total patchsets:", count)
}

func (r *patchesWindow) addPatchset(line string) {
	parts := strings.Split(line, "Author:")
	author := parts[1]
	parts = strings.Fields(parts[0])
	name := parts[0]
	subject := strings.Join(parts[1:], " ")
	r.setgrid.NewLabel(name)
	r.setgrid.NewLabel(subject)
	r.setgrid.NewLabel(author)
	/*
		r.setgrid.NewButton("Download", func() {
			pset, err := savePatch(name)
			if err != nil {
				log.Info(name, "failed to download", err)
				return
			}
			r.setlist[name] = pset
		})
	*/
	r.setgrid.NewButton("View", func() {
		// has the window already been created?
		win := r.setwin[name]
		if win != nil {
			win.Toggle()
			log.Info("TRYING TO TOGGLE WINDOW")
			return
		}

		// get the patch and make the window
		pset, err := getPatch(name)
		if err != nil {
			log.Info(name, "failed to download", err)
			return
		}
		r.setlist[name] = pset
		r.setwin[name] = makePatchWindow(pset)
		r.setwin[name].Show()
	})
	r.setgrid.NewButton("Dump", func() {
		pset := r.setlist[name]
		if pset == nil {
			log.Info(name, "was nil")
			return
		}
		if !dumpPatchset(pset) {
			log.Info("Dump: some patches are bad", name)
			return
		}
	})
	r.setgrid.NewButton("Extract", func() {
		pset := r.setlist[name]
		if pset == nil {
			log.Info(name, "was nil")
			return
		}
		if err := savePatchset(pset); err != nil {
			log.Info("Save: some patches are bad", name, err)
			return
		}
	})
	r.setgrid.NewButton("Apply", func() {
		pset := r.setlist[name]
		if pset == nil {
			log.Info(name, "was nil")
			return
		}
		if _, _, _, err := IsEverythingOnDevel(); err != nil {
			log.Info("You can only apply patches to the devel branch")
			return
		}
		if IsAnythingDirty() {
			log.Info("You can't apply patches when repos are dirty")
			me.forge.PrintHumanTable(me.found)
			return
		}
		applyPatchset(pset)
	})
	r.setgrid.NextRow()
}