/* Copyright Azareal 2017 - 2018 */
package main

import "log"
import "bytes"
import "sync"
import "encoding/json"

//import "html/template"

var docks WidgetDocks
var widgetUpdateMutex sync.RWMutex

type WidgetDocks struct {
	LeftSidebar  []Widget
	RightSidebar []Widget
	//PanelLeft []Menus
}

type Widget struct {
	Enabled  bool
	Location string // Coming Soon: overview, topics, topic / topic_view, forums, forum, global
	Position int
	Body     string
}

type WidgetMenu struct {
	Name     string
	MenuList []WidgetMenuItem
}

type WidgetMenuItem struct {
	Text     string
	Location string
	Compact  bool
}

type NameTextPair struct {
	Name string
	Text string
}

func initWidgets() error {
	rows, err := getWidgetsStmt.Query()
	if err != nil {
		return err
	}
	defer rows.Close()

	var sbytes []byte
	var side, wtype, data string

	var leftWidgets []Widget
	var rightWidgets []Widget

	for rows.Next() {
		var widget Widget
		err = rows.Scan(&widget.Position, &side, &wtype, &widget.Enabled, &widget.Location, &data)
		if err != nil {
			return err
		}

		sbytes = []byte(data)
		switch wtype {
		case "simple":
			var tmp NameTextPair
			err = json.Unmarshal(sbytes, &tmp)
			if err != nil {
				return err
			}

			var b bytes.Buffer
			err = templates.ExecuteTemplate(&b, "widget_simple.html", tmp)
			if err != nil {
				return err
			}
			widget.Body = string(b.Bytes())
		default:
			widget.Body = data
		}

		if side == "left" {
			leftWidgets = append(leftWidgets, widget)
		} else if side == "right" {
			rightWidgets = append(rightWidgets, widget)
		}
	}
	err = rows.Err()
	if err != nil {
		return err
	}

	widgetUpdateMutex.Lock()
	docks.LeftSidebar = leftWidgets
	docks.RightSidebar = rightWidgets
	widgetUpdateMutex.Unlock()

	if dev.SuperDebug {
		log.Print("docks.LeftSidebar", docks.LeftSidebar)
		log.Print("docks.RightSidebar", docks.RightSidebar)
	}

	return nil
}