package main

import (
	"fmt"
	"net/http"

	"github.com/gorilla/mux"
)

type levelUpStatProcessor struct{}

func (p *levelUpStatProcessor) GetName() string {
	return "LevelUp Statistics"
}

func (p *levelUpStatProcessor) GetStatKeys() []string {
	return []string{
		"levelup-*",
	}
}
func (p *levelUpStatProcessor) Initialize() {}

func (p *levelUpStatProcessor) ProcessMessage(m *Message)      {}
func (p *levelUpStatProcessor) ProcessAdminMessage(m *Message) {}
func (p *levelUpStatProcessor) ProcessBotMessage(m *Message)   {}

func (p *levelUpStatProcessor) ProcessUserMessage(m *Message)      {}
func (p *levelUpStatProcessor) ProcessAdminUserMessage(m *Message) {}
func (p *levelUpStatProcessor) ProcessBotUserMessage(m *Message)   {}

func (p *levelUpStatProcessor) ProcessChannelMessage(m *Message) {
	// levelup XP, for now, is awarded like this:
	// Message in #random: 1 xp
	// Message in #general: 2 xp
	// Message in any other channel: 3 xp + 1 xp for that channel
	chnl, err := getChannelInfo(m.Channel)
	if err == nil {
		if chnl.Name == "random" {
			addUserStat(m.User, "levelup-xp", 1)
		} else if chnl.Name == "general" {
			addUserStat(m.User, "levelup-xp", 2)
		} else {
			addUserStat(m.User, "levelup-xp", 3)
			addUserStat(m.User, "levelup-xp-"+chnl.Name, 1)
		}
	}
}
func (p *levelUpStatProcessor) ProcessAdminChannelMessage(m *Message) {}
func (p *levelUpStatProcessor) ProcessBotChannelMessage(m *Message)   {}

/*
 * Web Site Module
 */
type levelUpWebModule struct{}

func (wm *levelUpWebModule) GetName() string {
	return "LevelUp Web Module"
}
func (wm *levelUpWebModule) GetRoutes() map[string]func(http.ResponseWriter, *http.Request) {
	ret := make(map[string]func(http.ResponseWriter, *http.Request))
	ret["/levelup/"] = wm.handleLevelUpGeneral
	ret["/levelup/profile/{username}"] = wm.handleLevelUpProfile
	return ret
}
func (wm *levelUpWebModule) Register() {
	for k, v := range wm.GetRoutes() {
		r.HandleFunc(k, v)
	}
}
func (wm *levelUpWebModule) GetMenuEntries() []menuItem {
	var ret []menuItem
	ret = append(ret, menuItem{Text: "LevelUp!", Link: "/levelup/"})
	return ret
}
func (wm *levelUpWebModule) GetBottomMenuEntries() []menuItem {
	var ret []menuItem
	return ret
}

func (wm *levelUpWebModule) handleLevelUpGeneral(w http.ResponseWriter, req *http.Request) {
	type UserLevelUpStats struct {
		Name         string
		Xp           int
		ChannelStats map[string]int
	}
	type StatData struct {
		UserStats []UserLevelUpStats
	}
	openDatabase()
	userLst := getUserList()
	var userStats []UserLevelUpStats
	for _, k := range userLst {
		usrName := getUserName(k)
		if usrName == "stat_bot" || usrName == "bot" {
			continue
		}

		xpVal, _ := getUserStat(k, "levelup-xp")
		userStats = append(userStats, UserLevelUpStats{
			Name:         usrName,
			Xp:           xpVal,
			ChannelStats: getAllLevelUpChannelXp(k),
		})
	}
	closeDatabase()
	site.TemplateData = StatData{UserStats: userStats}

	initRequest(w, req)
	setMenuItemActive("LevelUp!")

	sc := "var levelUpStats = {"
	sc = sc + "users:["
	if len(userStats) > 0 {
		for _, k := range userStats {
			sc = sc + "{"
			sc = sc + "name:\"" + k.Name + "\","
			sc = fmt.Sprintf("%sxp:%d,", sc, k.Xp)
			sc = sc + "channels:["
			if len(k.ChannelStats) > 0 {
				for chK, chV := range k.ChannelStats {
					sc = fmt.Sprintf("%s{name:\"%s\",xp:%d},", sc, chK, chV)
				}
				sc = sc[:len(sc)-1]
			}
			sc = sc + "]},"
		}
		sc = sc[:len(sc)-1]
	}
	sc = sc + "]};"
	addToInlineScript(sc)
	site.Scripts = append(site.Scripts, "/assets/js/levelup_main.js")

	showPage("levelup-main.html", site, w)
}

func (wm *levelUpWebModule) handleLevelUpProfile(w http.ResponseWriter, req *http.Request) {
	type UserLevelUpStats struct {
		Name         string
		Xp           int
		ChannelStats map[string]int
		OtherStats   map[string]int
	}
	var u *User
	var err error
	vars := mux.Vars(req)
	if u, err = getUserInfoFromName(vars["username"]); err != nil {
		pageNotFound(fmt.Errorf(fmt.Sprintf("Couldn't find a profile for user "+vars["username"])+"\n%s\n", err), w)
		return
	}
	p := UserLevelUpStats{Name: vars["username"]}
	p.Xp, _ = getUserStat(u.ID, "levelup-xp")
	p.ChannelStats = getAllLevelUpChannelXp(u.ID)
	p.OtherStats = getAllNonLevelUpStats(u.ID)
	site.TemplateData = p

	initRequest(w, req)
	showPage("levelup-profile.html", site, w)
}