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calendar.go
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calendar.go
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/*
* Copyright (c) 2014 Santiago Arias | Remy Jourde
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package tournaments
import (
"errors"
"fmt"
"net/http"
"sort"
"time"
"appengine"
"github.com/taironas/gonawin/extract"
"github.com/taironas/gonawin/helpers"
"github.com/taironas/gonawin/helpers/log"
templateshlp "github.com/taironas/gonawin/helpers/templates"
mdl "github.com/taironas/gonawin/models"
)
// DayJSON is a variable to hold a date and match field.
// We use it to group tournament matches information by days.
//
type DayJSON struct {
Date time.Time
Matches []MatchJSON
}
// DayWithPredictionJSON is a variable to hold a date and match with prediction.
//
type DayWithPredictionJSON struct {
Date time.Time
Matches []MatchWithPredictionJSON
}
// MatchWithPredictionJSON is a variable to hold a match and an array of participants
// who put a predict on the match.
//
type MatchWithPredictionJSON struct {
Match MatchJSON
Participants []UserPredictionJSON
}
// UserPredictionJSON is a variable to hold user data and a prediction.
//
type UserPredictionJSON struct {
Id int64 `json:"Id,omitempty"`
Username string
Alias string
Predict string
}
// PhaseJSON is a variable to hold a the name of a phase and an array of days.
// We use it to group tournament matches information by phases.
//
type PhaseJSON struct {
Name string
Days []DayJSON
Completed bool
}
// Calendar handler gets you the calendar data of a specific tournament.
// Use this handler to get the calendar of a tournament.
// The calendar structure is an array of the tournament matches with the following information:
// * the location
// * the teams involved
// * the date
// by default the data returned is grouped by days.This means we will return an array of days, each of which can have an array of matches.
// You can also specify the 'groupby' parameter to be 'day' or 'phase' in which case you would have an array of phases,
// each of which would have an array of days who would have an array of matches.
//
func Calendar(w http.ResponseWriter, r *http.Request, u *mdl.User) error {
if r.Method != "GET" {
return &helpers.BadRequest{Err: errors.New(helpers.ErrorCodeNotSupported)}
}
c := appengine.NewContext(r)
desc := "Tournament Calendar Handler:"
extract := extract.NewContext(c, desc, r)
var err error
var t *mdl.Tournament
if t, err = extract.Tournament(); err != nil {
return err
}
groupby := r.FormValue("groupby")
// if wrong data we set groupby to "day"
if groupby != "day" && groupby != "phase" {
groupby = "day"
}
if groupby == "day" {
matchesJSON := buildMatchesFromTournament(c, t, u)
days := matchesGroupByDay(t, matchesJSON)
data := struct {
Days []DayJSON
}{
days,
}
return templateshlp.RenderJSON(w, c, data)
} else if groupby == "phase" {
matchesJSON := buildMatchesFromTournament(c, t, u)
phases := matchesGroupByPhase(t, matchesJSON)
data := struct {
Phases []PhaseJSON
}{
phases,
}
return templateshlp.RenderJSON(w, c, data)
}
return &helpers.BadRequest{Err: errors.New(helpers.ErrorCodeNotSupported)}
}
// CalendarWithPrediction handler give you a JSON tournament calendar with the user predictions.
// Use this handler to get the calendar of a tournament with the predictions of the players in a specific team.
// The calendar structure is an array of the tournament matches with the following information:
// * the location
// * the teams involved
// * the date
// by default the data returned is grouped by days.This means we will return an array of days, each of which can have an array of matches.
// the 'groupby' parameter does not support 'phases' yet.
func CalendarWithPrediction(w http.ResponseWriter, r *http.Request, u *mdl.User) error {
if r.Method != "GET" {
return &helpers.BadRequest{Err: errors.New(helpers.ErrorCodeNotSupported)}
}
c := appengine.NewContext(r)
desc := "Tournament Calendar with prediction Handler:"
extract := extract.NewContext(c, desc, r)
var err error
var t *mdl.Tournament
if t, err = extract.Tournament(); err != nil {
return err
}
var team *mdl.Team
if team, err = extract.Team(); err != nil {
return err
}
var players []*mdl.User
if players, err = team.Players(c); err != nil {
return &helpers.InternalServerError{Err: errors.New(helpers.ErrorCodeInternal)}
}
predictsByPlayer := make([]mdl.Predicts, len(players))
for i, p := range players {
var predicts []*mdl.Predict
if predicts, err = mdl.PredictsByIds(c, p.PredictIds); err != nil {
log.Infof(c, "%v something failed when calling PredictsByIds for player %v : %v", desc, p.Id, err)
continue
}
predictsByPlayer[i] = predicts
}
groupby := r.FormValue("groupby")
// if wrong data we set groupby to "day"
if groupby != "day" && groupby != "phase" {
groupby = "day"
}
if groupby == "day" {
vm := buildTournamentCalendarViewModel(c, t, u, predictsByPlayer, players)
return templateshlp.RenderJSON(w, c, vm)
} else if groupby == "phase" {
// @taironas: right now not supported.
}
return &helpers.BadRequest{Err: errors.New(helpers.ErrorCodeNotSupported)}
}
type tournamentCalendarViewModel struct {
Days []DayWithPredictionJSON
}
func buildTournamentCalendarViewModel(c appengine.Context, t *mdl.Tournament, u *mdl.User, predictsByPlayer []mdl.Predicts, players []*mdl.User) tournamentCalendarViewModel {
matches := buildMatchesFromTournament(c, t, u)
matchesByDay := matchesGroupByDay(t, matches)
daysWithPredictions := make([]DayWithPredictionJSON, len(matchesByDay))
for i, day := range matchesByDay {
daysWithPredictions[i].Date = day.Date
matchesWithPredictions := matchesWithPredictions(day, players, predictsByPlayer)
daysWithPredictions[i].Matches = matchesWithPredictions
}
return tournamentCalendarViewModel{daysWithPredictions}
}
func matchesWithPredictions(day DayJSON, players []*mdl.User, predictsByPlayer []mdl.Predicts) []MatchWithPredictionJSON {
matchesWithPredictions := make([]MatchWithPredictionJSON, len(day.Matches))
for i, m := range day.Matches {
matchesWithPredictions[i].Match = m
participants := matchParticipants(m, players, predictsByPlayer)
matchesWithPredictions[i].Participants = participants
}
return matchesWithPredictions
}
func matchParticipants(m MatchJSON, players []*mdl.User, predictsByPlayer []mdl.Predicts) []UserPredictionJSON {
participants := make([]UserPredictionJSON, len(players))
for i, p := range players {
participants[i].Id = p.Id
participants[i].Username = p.Username
participants[i].Alias = p.Alias
prediction := "-"
if ok, index := predictsByPlayer[i].ContainsMatchID(m.Id); ok {
prediction = fmt.Sprintf("%v - %v", predictsByPlayer[i][index].Result1, predictsByPlayer[i][index].Result2)
}
participants[i].Predict = prediction
}
return participants
}
// From an array of Matches, create an array of Phases where the matches are grouped in.
// We use the Phases intervals and the IdNumber of each match to do this operation.
func matchesGroupByPhase(t *mdl.Tournament, matches []MatchJSON) []PhaseJSON {
var tb mdl.TournamentBuilder
if tb = mdl.GetTournamentBuilder(t); tb == nil {
return []PhaseJSON{}
}
limits := tb.MapOfPhaseIntervals()
phaseNames := tb.ArrayOfPhases()
phases := make([]PhaseJSON, len(limits))
for i := range phases {
phases[i].Name = phaseNames[i]
low := limits[phases[i].Name][0]
high := limits[phases[i].Name][1]
var filteredMatches []MatchJSON
for _, v := range matches {
if v.IdNumber >= low && v.IdNumber <= high {
filteredMatches = append(filteredMatches, v)
}
}
phases[i].Days = matchesGroupByDay(t, filteredMatches)
lastDayOfPhase := len(phases[i].Days) - 1
lastMatchOfPhase := len(phases[i].Days[lastDayOfPhase].Matches) - 1
if phases[i].Days[lastDayOfPhase].Matches[lastMatchOfPhase].Finished {
phases[i].Completed = true
} else {
phases[i].Completed = false
}
}
return phases
}
// From an array of matches, create an array of Days where the matches are grouped in.
// We use the Date of each match to do this.
func matchesGroupByDay(t *mdl.Tournament, matches []MatchJSON) []DayJSON {
mapOfDays := make(map[string][]MatchJSON)
const shortForm = "Jan/02/2006"
for _, m := range matches {
currentDate := m.Date.Format(shortForm)
_, ok := mapOfDays[currentDate]
if ok {
mapOfDays[currentDate] = append(mapOfDays[currentDate], m)
} else {
var arrayMatches []MatchJSON
arrayMatches = append(arrayMatches, m)
mapOfDays[currentDate] = arrayMatches
}
}
var days []DayJSON
days = make([]DayJSON, len(mapOfDays))
i := 0
for key, value := range mapOfDays {
days[i].Date, _ = time.Parse(shortForm, key)
days[i].Matches = value
i++
}
sort.Sort(ByDate(days))
return days
}
// ByDate type implements the sort.Interface for []DayJSON based on the date field.
type ByDate []DayJSON
func (a ByDate) Len() int { return len(a) }
func (a ByDate) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a ByDate) Less(i, j int) bool { return a[i].Date.Before(a[j].Date) }