package match

import (
	"fmt"
	"log"
	"net/url"
	"regexp"
	"strings"
	"time"

	"github.com/PuerkitoBio/goquery"

	"1bet.fr/scraper/requests"
	"1bet.fr/scraper/utils"
)

const (
	_ = iota
	GenderMale = iota
)

const (
	_ = iota
	StatusComing = iota
)

type Sport struct {
	Id int
	Name string
	CleanName string
}

type Country struct {
	Id int
}

type Player struct {
	Id int
	FullName string
	CleanName string
	Gender int
}

type TeamImages struct {
	H30 string
	H50 string
	H80 string
}

type Team struct {
	Id int
	Sport *Sport
	Country *Country

	Name string
	CleanName string

	ShortName *string
	LongName *string
	Gender *int

	Names *map[string]string
	PlayersUrl *string
	Images *TeamImages

	Tags *[]string
	CleanTags *[]string
	NewsCount int

	Error *string
	Trace *string
}

func NewTeam(gender *int, sport *Sport, country *Country) *Team {
	return &Team{
		Gender: gender,
		Images: &TeamImages{
			H30: "t0-h30.svg",
			H50: "t0-h50.svg",
			H80: "t0-h80.svg",
		},
		Sport: sport,
		Country: country,
	}
}

type Match struct {
	Id int
	League *League
	TeamHome *Team
	TeamAway *Team
	PlayerHome *Player
	PlayerAway *Player

	MatchDay *int
	Round *string
	Leg *int

	BaseUrl *string
	ScoreUrl *string
	LiveUrl *string
	TvChannels *[]string

	MatchDayId *int
	Status *int
	Minute *string
	StartDate *time.Time
	EndDate *time.Time
	HomeScore *int
	AwayScore *int
	SetsScore *[]interface{}
	Winner *int
	ExtraTime *int
	ShootoutHome *int
	ShootoutAway *int

	Squad *[]interface{}
	Events *[]interface{}
	Stats *[]interface{}
	Live *[]interface{}
	LastEvent *interface{}
	LastEventDate *time.Time

	Error *string
	Trace *string
}

func NewMatch(league *League, teamHome *Team, teamAway *Team, playerHome *Player, playerAway *Player, round string, matchDay int, leg int) *Match {
	return &Match{
		League:        league,
		TeamHome:      teamHome,
		TeamAway:      teamAway,
		PlayerHome:    playerHome,
		PlayerAway:    playerAway,
		MatchDay:      utils.IntPointer(matchDay),
		Round:         utils.StringPointer(round),
		Leg:		   utils.IntPointer(leg),
	}
}

type source struct {
	League *League
	URL *url.URL
	matchDay int
	round string

	currentDate *time.Time
	currentTimezone string
}

func newSource(league *League, scheme string, host string, path string, query string, round string, matchDay int) *source {
	return &source{
		League:      league,
		URL:         &url.URL{
			Scheme:     scheme,
			Host:       host,
			Path:       path,
			RawQuery:	query,
		},
		round:		round,
		matchDay:	matchDay,
	}
}

func (s *source) GetMatches() ([]*Match, error) {
	var matches []*Match

	switch s.URL.Host {
	case utils.HostMatchendirect:
		doc, err := requests.GetDocumentFromURL(s.URL.String())
		if err != nil {
			return nil, err
		}
		doc.Find("#livescore tr").Each(func (i int, row *goquery.Selection) {
			headCell := row.Find("th")
			if len(headCell.Nodes) == 1 {
				curDate, err := time.Parse("Monday 02 January 2006", utils.EnglishDateString(headCell.Text()))
				if err != nil {
					log.Fatalf("unexpected error while parsing date : %s", err)
					return
				}
				s.currentDate = &curDate
				s.currentTimezone = utils.FrenchTimezone(curDate)
			} else {
				teamHome := NewTeam(s.League.Gender, s.League.Sport, s.League.Country)
				teamAway := NewTeam(s.League.Gender, s.League.Sport, s.League.Country)
				match := NewMatch(s.League, teamHome, teamAway, &Player{}, &Player{}, s.round, s.matchDay, 0)

				startTime := strings.TrimSpace(row.Find("td.lm1").Text())
				if startTime == "-- : --" {
					startTime = "00:00"
				}
				startDate, err := time.Parse(
					"2006-01-02 15:04 MST",
					s.currentDate.Format("2006-01-02 ") + startTime + " " + s.currentTimezone,
				)
				if err != nil {
					match.Error = utils.StringPointer("parse date error")
					match.Trace = utils.StringPointer(fmt.Sprint(err))
					matches = append(matches, match)
					return
				}
				match.StartDate = &startDate

				homeNames := map[string]string{utils.KeywordMatchendirect: strings.TrimSuffix(strings.TrimSpace(row.Find(".lm3_eq1").Text()), "*")}
				match.TeamHome.Names = &homeNames
				awayNames := map[string]string{utils.KeywordMatchendirect: strings.TrimSuffix(strings.TrimSpace(row.Find(".lm3_eq2").Text()), "*")}
				match.TeamAway.Names = &awayNames

				basePath, ok := row.Find(".lm3 a").First().Attr("href")
				if !ok {
					match.Error = utils.StringPointer("unable to find href attr")
					match.Trace = utils.StringPointer("unable to find href attribute for element '.lm3 a'")
					matches = append(matches, match)
					return
				}
				baseUrl := &url.URL{Scheme: s.URL.Scheme, Host: s.URL.Host, Path: basePath}
				match.BaseUrl = utils.StringPointer(baseUrl.String())

				if match.Round == nil && match.MatchDay == nil && s.League.MatchDays != nil && s.League.MatchesByMatchDay != nil {
					if s.League.currentMatchDayId == 0 {
						s.League.currentMatchDay ++
					}
					curMatchDay := s.League.currentMatchDay
					curMatchDayId := s.League.currentMatchDayId
					match.MatchDay = &curMatchDay
					match.MatchDayId = &curMatchDayId
					s.League.currentMatchDayId = (s.League.currentMatchDayId + 1) % *s.League.MatchesByMatchDay
				}
				matches = append(matches, match)
			}
		})

	default:
		return nil, fmt.Errorf("unexpected source url %s", s.URL.String())
	}
	return matches, nil
}

type League struct {
	Id int
	Sport *Sport
	Country *Country

	Name string
	CleanName string
	Gender *int
	Degree *int

	ScheduleUrl *string
	RankingUrl *string
	ChannelUrl *string

	MatchDays *int
	MatchesByMatchDay *int
	TeamCount int

	Rounds []string
	Groups []string
	Points interface{}
	Promotions interface{}

	Images interface{}
	Schedule interface{}

	Tags []string
	CleanTags []string
	NewsCount int

	Error *string
	Trace *string

	currentMatchDay int
	currentMatchDayId int
}

func (l *League) ListSources() ([]*source, error) {
	var sources []*source

	if l.ScheduleUrl == nil {
		return nil, nil
	}

	doc, err := requests.GetDocumentFromURL(*l.ScheduleUrl)
	if err != nil {
		return nil, err
	}

	originUrl, err := url.Parse(*l.ScheduleUrl)
	if err != nil {
		return nil, err
	}

	switch originUrl.Host {
	case utils.HostMatchendirect:
		doc.Find(".fDate option").Each(func (i int, s *goquery.Selection) {
			value, ok := s.Attr("value")
			if !ok {
				return
			}
			parsedDate := strings.Split(strings.Split(value, "/")[3], "-")
			year := utils.AtoI(parsedDate[0])
			week := utils.AtoI(parsedDate[1])
			if (year == 2020 && week >= 34) || year > 2020 {
				sources = append(sources, newSource(l, originUrl.Scheme, originUrl.Host, value, "", "", 0))
			}
		})

	case utils.HostEurosport, utils.HostRugbyrama:
		curRegexp := regexp.MustCompile(`(\d)+e\s+Journée`)

		ajaxUrl, ok := doc.Find(".ajax-container").Attr("data-ajax-url")
		if !ok {
			return nil, fmt.Errorf("ajax-container url not found")
		}
		ajaxParsedUrl, err := url.Parse(ajaxUrl)
		if err != nil {
			return nil, err
		}
		ajaxQuery := ajaxParsedUrl.Query()

		doc.Find("#results-match-nav .rounds-dropdown__round").Each(func (i int, s *goquery.Selection) {
			matchDay := 0
			round, _ := s.Attr("data-label")
			reMatch := curRegexp.FindStringSubmatch(round)
			if reMatch != nil {
				round = ""
				matchDay = utils.AtoI(reMatch[1])
			}

			roundId, _ := s.Attr("data-round-id")
			ajaxQuery.Set("roundid", roundId)
			sources = append(sources, newSource(l, originUrl.Scheme, originUrl.Host, ajaxParsedUrl.Path, ajaxQuery.Encode(), round, matchDay))
		})

	default:
		return nil, fmt.Errorf("unknown source url : %s", *l.ScheduleUrl)
	}
	return sources, nil
}