mirror of
https://github.com/Team254/cheesy-arena-lite.git
synced 2026-03-09 21:56:50 -04:00
Added alliance selection page.
This commit is contained in:
Patrick Fairbank
250
setup_alliance_selection.go
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250
setup_alliance_selection.go
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@@ -0,0 +1,250 @@
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// Copyright 2014 Team 254. All Rights Reserved.
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// Author: pat@patfairbank.com (Patrick Fairbank)
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//
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// Web routes for conducting the alliance selection process.
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package main
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import (
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"fmt"
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"html/template"
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"net/http"
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"strconv"
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"time"
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)
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type RankedTeam struct {
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Rank int
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TeamId int
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Picked bool
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}
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// Global vars to hold the alliances that are in the process of being selected.
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var cachedAlliances [][]*AllianceTeam
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var cachedRankedTeams []*RankedTeam
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// Shows the alliance selection page.
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func AllianceSelectionGetHandler(w http.ResponseWriter, r *http.Request) {
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renderAllianceSelection(w, r, "")
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}
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// Updates the cache with the latest input from the client.
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func AllianceSelectionPostHandler(w http.ResponseWriter, r *http.Request) {
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if !canModifyAllianceSelection() {
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renderAllianceSelection(w, r, "Alliance selection has already been finalized.")
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return
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}
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// Reset picked state for each team in preparation for reconstructing it.
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for _, team := range cachedRankedTeams {
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team.Picked = false
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}
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// Iterate through all selections and update the alliances.
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for i, alliance := range cachedAlliances {
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for j, spot := range alliance {
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teamString := r.PostFormValue(fmt.Sprintf("selection%d_%d", i, j))
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if teamString == "" {
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spot.TeamId = 0
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} else {
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teamId, err := strconv.Atoi(teamString)
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if err != nil {
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renderAllianceSelection(w, r, fmt.Sprintf("Invalid team number value '%s'.", teamString))
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return
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}
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found := false
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for _, team := range cachedRankedTeams {
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if team.TeamId == teamId {
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if team.Picked {
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renderAllianceSelection(w, r, fmt.Sprintf("Team %d is already part of an alliance.", teamId))
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return
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}
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found = true
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team.Picked = true
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spot.TeamId = teamId
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break
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}
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}
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if !found {
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renderAllianceSelection(w, r, fmt.Sprintf("Team %d is not present at this event.", teamId))
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return
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}
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}
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}
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}
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http.Redirect(w, r, "/setup/alliance_selection", 302)
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}
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// Sets up the empty alliances and populates the ranked team list.
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func AllianceSelectionStartHandler(w http.ResponseWriter, r *http.Request) {
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if len(cachedAlliances) != 0 {
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renderAllianceSelection(w, r, "Can't start alliance selection when it is already in progress.")
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return
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}
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if !canModifyAllianceSelection() {
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renderAllianceSelection(w, r, "Alliance selection has already been finalized.")
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return
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}
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// Create a blank alliance set matching the event configuration.
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cachedAlliances = make([][]*AllianceTeam, eventSettings.NumElimAlliances)
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teamsPerAlliance := 3
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if eventSettings.SelectionRound3Order != "" {
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teamsPerAlliance = 4
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}
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for i := 0; i < eventSettings.NumElimAlliances; i++ {
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cachedAlliances[i] = make([]*AllianceTeam, teamsPerAlliance)
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for j := 0; j < teamsPerAlliance; j++ {
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cachedAlliances[i][j] = &AllianceTeam{AllianceId: i + 1, PickPosition: j}
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}
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}
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// Populate the ranked list of teams.
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rankings, err := db.GetAllRankings()
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if err != nil {
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handleWebErr(w, err)
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return
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}
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cachedRankedTeams = make([]*RankedTeam, len(rankings))
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for i, ranking := range rankings {
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cachedRankedTeams[i] = &RankedTeam{i + 1, ranking.TeamId, false}
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}
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http.Redirect(w, r, "/setup/alliance_selection", 302)
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}
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// Resets the alliance selection process back to the starting point.
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func AllianceSelectionResetHandler(w http.ResponseWriter, r *http.Request) {
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if !canModifyAllianceSelection() {
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renderAllianceSelection(w, r, "Alliance selection has already been finalized.")
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return
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}
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cachedAlliances = [][]*AllianceTeam{}
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cachedRankedTeams = []*RankedTeam{}
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http.Redirect(w, r, "/setup/alliance_selection", 302)
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}
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// Saves the selected alliances to the database and generates the first round of elimination matches.
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func AllianceSelectionFinalizeHandler(w http.ResponseWriter, r *http.Request) {
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if !canModifyAllianceSelection() {
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renderAllianceSelection(w, r, "Alliance selection has already been finalized.")
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return
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}
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location, _ := time.LoadLocation("Local")
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startTime, err := time.ParseInLocation("2006-01-02 03:04:05 PM", r.PostFormValue("startTime"), location)
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if err != nil {
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renderAllianceSelection(w, r, "Must specify a valid start time for the elimination rounds.")
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return
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}
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matchSpacingSec, err := strconv.Atoi(r.PostFormValue("matchSpacingSec"))
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if err != nil || matchSpacingSec <= 0 {
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renderAllianceSelection(w, r, "Must specify a valid match spacing for the elimination rounds.")
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return
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}
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// Check that all spots are filled.
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for _, alliance := range cachedAlliances {
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for _, team := range alliance {
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if team.TeamId <= 0 {
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renderAllianceSelection(w, r, "Can't finalize alliance selection until all spots have been filled.")
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return
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}
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}
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}
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// Save alliances to the database.
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for _, alliance := range cachedAlliances {
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for _, team := range alliance {
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err := db.CreateAllianceTeam(team)
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if err != nil {
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handleWebErr(w, err)
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return
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}
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}
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}
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// Generate the first round of elimination matches.
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_, err = db.UpdateEliminationSchedule(startTime, matchSpacingSec)
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if err != nil {
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handleWebErr(w, err)
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return
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}
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http.Redirect(w, r, "/setup/alliance_selection", 302)
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}
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func renderAllianceSelection(w http.ResponseWriter, r *http.Request, errorMessage string) {
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template, err := template.ParseFiles("templates/alliance_selection.html", "templates/base.html")
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if err != nil {
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handleWebErr(w, err)
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return
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}
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nextRow, nextCol := determineNextCell()
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data := struct {
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*EventSettings
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Alliances [][]*AllianceTeam
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RankedTeams []*RankedTeam
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NextRow int
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NextCol int
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ErrorMessage string
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}{eventSettings, cachedAlliances, cachedRankedTeams, nextRow, nextCol, errorMessage}
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err = template.ExecuteTemplate(w, "base", data)
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if err != nil {
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handleWebErr(w, err)
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return
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}
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}
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// Returns true if it is safe to change the alliance selection (i.e. no elimination matches exist yet).
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func canModifyAllianceSelection() bool {
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matches, err := db.GetMatchesByType("elimination")
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if err != nil || len(matches) > 0 {
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return false
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}
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return true
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}
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// Returns the row and column of the next alliance selection spot that should have keyboard autofocus.
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func determineNextCell() (int, int) {
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// Check the first two columns.
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for i, alliance := range cachedAlliances {
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if alliance[0].TeamId == 0 {
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return i, 0
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}
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if alliance[1].TeamId == 0 {
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return i, 1
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}
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}
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// Check the third column.
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if eventSettings.SelectionRound2Order == "F" {
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for i, alliance := range cachedAlliances {
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if alliance[2].TeamId == 0 {
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return i, 2
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}
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}
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} else {
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for i := len(cachedAlliances) - 1; i >= 0; i-- {
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if cachedAlliances[i][2].TeamId == 0 {
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return i, 2
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}
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}
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}
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// Check the fourth column.
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if eventSettings.SelectionRound3Order == "F" {
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for i, alliance := range cachedAlliances {
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if alliance[3].TeamId == 0 {
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return i, 3
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}
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}
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} else if eventSettings.SelectionRound3Order == "L" {
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for i := len(cachedAlliances) - 1; i >= 0; i-- {
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if cachedAlliances[i][3].TeamId == 0 {
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return i, 3
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}
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}
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}
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return -1, -1
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}
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