// Although most code from WIT.COM Inc is under the GPL
// This code is more generic because it must be able
// to be used in any GUI plugin

package tree

import (
	"fmt"
	"time"

	"go.wit.com/lib/gui/shell"
	"go.wit.com/lib/protobuf/guipb"
	"go.wit.com/log"
	"go.wit.com/widget"
	"google.golang.org/protobuf/proto"
	"google.golang.org/protobuf/types/known/anypb"
	"google.golang.org/protobuf/types/known/timestamppb"
)

// repeated string      order          = 1;
//
// repeated StringRow   StringRows     = 2;
// repeated IntRow      IntRows        = 3;
// repeated TimeRow     TimeRows       = 4;
// repeated BoolRow     BoolRows       = 5;
func (me *TreeInfo) doTable(a widget.Action) {
	if a.TablePB == nil {
		log.Log(TREE, "tree: action didn't have a Table PB")
		return
	}
	pb := guipb.NewTables()
	if err := pb.Unmarshal(a.TablePB); err != nil {
		log.Info("unmarshal error", err, "data len =", len(a.TablePB))
		return
	}
	log.Info("tree.doTables() start. # of tables:", len(pb.Tables))
	all := pb.All()
	for all.Scan() {
		t := all.Next()
		// for i, o := range t.Order {
		// 	log.Info("got order:", t.Title, i, o)
		// }
		// dumpTable(t)
		// me.ShowTable(t)
		log.Info("TREE FOUND TABLE UUID", t.Uuid)
		for i, ot := range me.currentTables {
			log.Info("TREE already has UUID", i, ot.Uuid)
			if t.Uuid == ot.Uuid {
				log.Info("TREE found UUID! update table here", i, ot.Uuid)
				me.updateTable(t)
				return
			}
		}

		me.currentTables = append(me.currentTables, t)
		me.makeTable(t)
	}
}

func makeTableWindow(pb *guipb.Widget) *Node {
	a := new(widget.Action)
	a.WidgetType = widget.Window
	a.WidgetId = int(pb.Id)
	a.ParentId = 0
	a.State.Enable = true

	return AddNode(a)
}

func (win *Node) makeWindowGrid(pb *guipb.Widget) *Node {
	a := new(widget.Action)
	a.WidgetType = widget.Grid
	a.WidgetId = int(pb.Id)
	a.ParentId = win.WidgetId
	a.State.Enable = true

	return AddNode(a)
}

func (grid *Node) makeGridLabel(pb *guipb.Widget, w int, h int) *Node {
	a := new(widget.Action)
	a.WidgetType = widget.Label
	a.WidgetId = int(pb.Id)
	a.ParentId = grid.WidgetId
	a.State.Enable = true
	a.State.Label = pb.Name
	a.State.AtW = w
	a.State.AtH = h
	a.State.GridOffset.X = w
	a.State.GridOffset.Y = h
	// log.Info("makeGridLabel()", a.State)
	return AddNode(a)
}

func (me *TreeInfo) updateTable(t *guipb.Table) {
	log.Info("todo: compare table here...")
	for _, name := range t.Order {
		me.updateRow(t, name)
	}
}

func (me *TreeInfo) updateRow(t *guipb.Table, name string) {
	for _, r := range t.StringRows {
		if name == r.Header.Name {
			id := r.Header.Id
			n := treeRoot.FindWidgetId(int(id))
			if n == nil {
				log.Info("could not find widget id", id)
			}
			// log.Info("tree.updateRow() start found header", id, r.Header, "len =", len(r.Widgets))
			// if r.Header.Name == "Hostname" {
			// }
			// log.Info("tree.updateRow() found Hostnames", r.Vals)
			for i, v := range r.Vals {
				// log.Info("tree: Hostname Widget", i, v, w.Name)
				w := r.Widgets[i]
				if v != w.Name {
					log.Info("tree: need to update:", i, v, "vs", w.Name, w.Id)
					n := treeRoot.FindWidgetId(int(w.Id))
					if n == nil {
						log.Info("tree.TableUpdate() err n == nil ", w.Id, w.Name)
						continue
					}
					me.SetText(n, v)
				}
			}
			return
		}
	}
}

func (me *TreeInfo) makeTable(t *guipb.Table) {
	var grid *Node
	if t.Window != nil {
		// deprecate this early hack
		win := makeTableWindow(t.Window)
		me.Add(win)
		win.makeWindowGrid(t.Grid)
	}
	if t.Parent != nil {
		a := new(widget.Action)
		a.WidgetType = widget.Grid
		a.WidgetId = int(t.Grid.Id)
		a.ParentId = int(t.Parent.Id)
		a.State.Enable = true
		grid = AddNode(a)
	}
	if grid == nil {
		log.Info("tree: makeTable() failed to make grid")
		return
	}
	me.Add(grid)
	log.Info("tree: makeTable() finished add win & grid")
	var h int = 0
	var w int = 0
	for _, name := range t.Order {
		// log.Info("got order:", t.Title, name)
		if me.addTableRow(t, grid, name, w) {
			// log.Info("tree:row() COLUMN GOOD", t.Title, name, w, h)
		} else {
			log.Info("tree:row() COLOMN FAIL", t.Title, name, w, h)
		}

		w += 1
	}

	/*
		for i, r := range t.StringRows {
			log.Info("got string row:", t.Title, i, r.Header, r.Vals)
			for _, v := range r.Widgets {
				log.Info("tree: add to grid here", v.Id, v.Name)
				lab := grid.makeGridLabel(v, w, h)
				me.Add(lab)
				h += 1
			}
		}
	*/
}

func (me *TreeInfo) addTableRow(t *guipb.Table, grid *Node, name string, w int) bool {
	var h int = 0
	for _, r := range t.StringRows {
		if name != r.Header.Name {
			// log.Info("skip string row:", r.Header.Name, "!=", name)
			continue
		}
		// log.Info("tree: Add()ing to grid here", r.Header.Id, r.Header.Name, w, h)
		head := grid.makeGridLabel(r.Header, w, h)
		me.Add(head)
		h += 1
		for _, v := range r.Widgets {
			// log.Info("tree: Add()ing to grid here", v.Id, v.Name, w, h)
			lab := grid.makeGridLabel(v, w, h)
			me.Add(lab)
			h += 1
		}
		return true
	}

	for _, r := range t.IntRows {
		if name != r.Header.Name {
			// log.Info("skip sint row:", r.Header.Name, "!=", name)
			continue
		}
		// log.Info("tree: Add()ing to grid here", r.Header.Id, r.Header.Name, w, h)
		head := grid.makeGridLabel(r.Header, w, h)
		me.Add(head)
		h += 1
		for _, v := range r.Widgets {
			v.Name = fmt.Sprintf("%d", v.Size)
			// log.Info("tree: Add()ing to grid here", v.Id, v.Name, w, h)
			lab := grid.makeGridLabel(v, w, h)
			me.Add(lab)
			h += 1
		}
		return true
	}

	for _, r := range t.TimeRows {
		if name != r.Header.Name {
			// log.Info("skip sint row:", r.Header.Name, "!=", name)
			continue
		}
		// log.Info("tree: Add()ing to grid here", r.Header.Id, r.Header.Name, w, h)
		head := grid.makeGridLabel(r.Header, w, h)
		me.Add(head)
		h += 1
		for _, widg := range r.Widgets {
			msg, err := anypb.UnmarshalNew(widg.Val, proto.UnmarshalOptions{})
			if err != nil {
				log.Fatalf("failed to unmarshal: %v", err)
			}

			switch v := msg.(type) {
			case *timestamppb.Timestamp:
				// fmt.Println("Unpacked Timestamp:", shell.FormatDuration(time.Since(v.AsTime())))
				widg.Name = shell.FormatDuration(time.Since(v.AsTime()))
			default:
				fmt.Println("Unknown type:", v)
				widg.Name = fmt.Sprintf("%v", v)
			}

			// log.Info("tree: Add()ing to grid here", widg.Id, widg.Name, w, h)
			lab := grid.makeGridLabel(widg, w, h)
			me.Add(lab)
			h += 1
		}
		return true
	}

	return false
}

func dumpTable(t *guipb.Table) {
	for i, o := range t.Order {
		log.Info("got order:", t.Title, i, o)
	}
	for i, r := range t.StringRows {
		log.Info("got string row:", t.Title, i, r.Header.Name, r.Vals)
		for _, v := range r.Widgets {
			log.Info("tree: got string widget:", v.Id, v.Name)
		}
	}
	for i, r := range t.IntRows {
		log.Info("got int row:", t.Title, i, r.Header.Name, r.Vals)
		for _, v := range r.Widgets {
			log.Info("tree: got int widget:", v.Id, v.Size)
		}
	}
}

type TreeTable struct {
	PB *guipb.Table
	/*
		hostnames []string
		columns   []*gui.NodeColumn
		order     []*gui.NodeColumn
	*/
}