@model IEnumerable<RoundDto>
@{
    ViewData["Title"] = "Track Event - Rounds";
    var telId = ViewBag.TournamentEventLevelId as int?;
    var eventName = ViewBag.EventName as string;
    var levelName = ViewBag.LevelName as string;
    var tournamentName = ViewBag.TournamentName as string;
    var regCount = ViewBag.RegistrationCount as int? ?? 0;
    var standings = ViewBag.Standings as IEnumerable<EventRegistrationDto> ?? Enumerable.Empty<EventRegistrationDto>();
}

<div class="d-flex justify-content-between align-items-center mb-3">
    <div>
        <h2 class="mb-1">@(string.IsNullOrEmpty(eventName) ? "Track Event Scoring" : $"{eventName} — {levelName}")</h2>
        <p class="text-muted mb-0">
            @if (!string.IsNullOrEmpty(tournamentName)) { <span><i class="bi bi-trophy"></i> @tournamentName</span> }
            <span class="ms-2"><i class="bi bi-people"></i> @regCount registered</span>
            <span class="ms-2"><i class="bi bi-stopwatch"></i> @Model.Count() round(s)</span>
        </p>
    </div>
    @if (Model.Any(r => r.RoundType == RoundType.Final))
    {
        <form asp-action="CalculateFinalStandings" method="post">
            <input type="hidden" name="tournamentEventLevelId" value="@telId" />
            <button type="submit" class="btn btn-warning" title="Rank the final-round times and award placement points">
                <i class="bi bi-trophy"></i> Calculate Final Standings
            </button>
        </form>
    }
</div>

<partial name="_Notification" />

<div class="card shadow-sm mb-3">
    <div class="card-header bg-dark text-white d-flex justify-content-between align-items-center">
        <h5 class="mb-0">Rounds</h5>
        <form asp-action="CreateRound" method="post" class="d-flex gap-2 align-items-center">
            <input type="hidden" name="TournamentEventLevelId" value="@telId" />
            <select name="RoundType" id="roundTypeSelect" class="form-select form-select-sm" style="width:120px">
                <option value="Heat">Heats</option>
                <option value="SemiFinal">Semi-Final</option>
                <option value="Final">Final</option>
            </select>
            <input type="number" name="RoundOrder" value="@(Model.Count() + 1)" class="form-control form-control-sm" style="width:60px" title="Round order" />
            <input type="number" name="AdvanceTopN" id="advanceTopN" value="3" class="form-control form-control-sm advance-field" style="width:60px" placeholder="Top N" title="Advance top N per heat" />
            <input type="number" name="AdvanceFastestLosers" id="advanceFL" value="2" class="form-control form-control-sm advance-field" style="width:60px" placeholder="FL" title="Fastest losers" />
            <span id="finalNote" class="text-light small fst-italic" style="display:none;">no advancement</span>
            <button type="submit" class="btn btn-sm btn-success">Add Round</button>
        </form>
    </div>
    <div class="card-body p-0">
        <table class="table table-hover mb-0">
            <thead><tr><th>Round</th><th>Type</th><th>Status</th><th>Heats</th><th>Competitors</th><th>Advances to next round</th><th>Actions</th></tr></thead>
            <tbody>
                @foreach (var r in Model.OrderBy(r => r.RoundOrder))
                {
                    var competitors = r.Heats.Sum(h => h.HeatLanes.Count);
                    var isFinal = r.RoundType == RoundType.Final;
                    <tr>
                        <td><strong>Round @r.RoundOrder</strong></td>
                        <td><span class="badge bg-info">@r.RoundType</span></td>
                        <td><span class="badge @(r.Status == RoundStatus.Completed ? "bg-success" : r.Status == RoundStatus.InProgress ? "bg-primary" : "bg-secondary")">@r.Status</span></td>
                        <td>@r.Heats.Count</td>
                        <td>@competitors</td>
                        <td>
                            @if (isFinal)
                            {
                                <span class="badge bg-warning text-dark">Final — points awarded</span>
                            }
                            else if ((r.AdvanceTopN ?? 0) > 0 || (r.AdvanceFastestLosers ?? 0) > 0)
                            {
                                <span title="Top @(r.AdvanceTopN ?? 0) per heat plus @(r.AdvanceFastestLosers ?? 0) fastest losers overall">
                                    Top @(r.AdvanceTopN ?? 0)/heat + @(r.AdvanceFastestLosers ?? 0) fastest losers
                                </span>
                            }
                            else
                            {
                                <span class="text-muted">—</span>
                            }
                        </td>
                        <td>
                            <a asp-action="ManageRound" asp-route-roundId="@r.RoundId" class="btn btn-sm btn-primary">Manage</a>
                            @if (r.Heats.Count == 0)
                            {
                                <form asp-action="SeedHeats" method="post" class="d-inline">
                                    <input type="hidden" name="roundId" value="@r.RoundId" />
                                    <input type="hidden" name="method" value="Random" />
                                    <button type="submit" class="btn btn-sm btn-outline-success">Seed Heats</button>
                                </form>
                            }
                        </td>
                    </tr>
                }
            </tbody>
        </table>
    </div>
    <div class="card-footer text-muted small">
        Athletes run preliminary heats (max 8 per heat); the fastest advance to the Final.
        <strong>Placement points are awarded from the Final round only.</strong>
    </div>
</div>

@if (standings.Any())
{
    <div class="card shadow-sm mb-3">
        <div class="card-header text-white" style="background-color:#003366;">
            <h5 class="mb-0">Final Standings</h5>
        </div>
        <div class="card-body p-0">
            <table class="table table-striped table-hover mb-0">
                <thead class="table-dark">
                    <tr><th>Place</th><th>Athlete</th><th>School</th><th>Time (s)</th><th>Points</th></tr>
                </thead>
                <tbody>
                    @foreach (var r in standings)
                    {
                        <tr>
                            <td>
                                @if (r.Score!.Placement <= 3) { <span class="badge bg-warning text-dark">#@r.Score.Placement</span> }
                                else { <span>@r.Score.Placement</span> }
                            </td>
                            <td>@r.StudentName</td>
                            <td>@r.SchoolName</td>
                            <td>@r.Score.RawPerformance.ToString("0.00")</td>
                            <td><strong>@r.Score.PlacementPoints</strong></td>
                        </tr>
                    }
                </tbody>
            </table>
        </div>
    </div>
}

@section Scripts {
    <script>
        (function () {
            var sel = document.getElementById('roundTypeSelect');
            if (!sel) return;
            var topN = document.getElementById('advanceTopN');
            var fl = document.getElementById('advanceFL');
            var note = document.getElementById('finalNote');
            function sync() {
                var isFinal = sel.value === 'Final';
                // Finals don't advance anyone, so hide the advancement inputs.
                [topN, fl].forEach(function (el) {
                    if (!el) return;
                    el.style.display = isFinal ? 'none' : '';
                    el.disabled = isFinal;
                });
                if (note) note.style.display = isFinal ? '' : 'none';
            }
            sel.addEventListener('change', sync);
            sync();
        })();
    </script>
}