@model StoryIntelligenceProgressViewModel
@{
    ViewData["Title"] = "Review Plot Lines & Threads";
    const int previewLimit = 25;
    var narrativeCandidates = Model.NarrativeReview.Candidates.Take(previewLimit).ToList();
    var hiddenCandidateCount = Math.Max(0, Model.NarrativeReview.Candidates.Count - narrativeCandidates.Count);
    var eventTypes = new[]
    {
        "Introduced", "Mentioned", "Developed", "Complicated", "Clue Planted", "Question Raised", "Question Answered",
        "False Lead", "Revealed", "Payoff", "Resolved", "Contradicted", "Retconned", "Note"
    };
}

<section class="onboarding-shell" aria-labelledby="story-narrative-title">
    <div class="onboarding-panel onboarding-review-panel story-review-page">
        <div class="onboarding-copy story-review-heading">
            <p class="eyebrow">Story Intelligence</p>
            <h1 id="story-narrative-title">Review Plot Lines & Threads</h1>
            <p>Review recurring narrative arcs and thread candidates from the discovered hierarchy.</p>
        </div>

        @if (TempData["OnboardingStoryIntelligenceError"] is string error)
        {
            <div class="alert alert-danger">@error</div>
        }
        @if (TempData["OnboardingStoryIntelligenceMessage"] is string message)
        {
            <div class="alert alert-success">@message</div>
        }

        @if (Model.NarrativeReview.Candidates.Count == 0)
        {
            <div class="story-review-note">
                <strong>No Plot Line or Thread candidates are waiting.</strong>
                <p class="mb-0">PlotDirector did not find recurring narrative candidates that require approval, or this review has already been completed.</p>
            </div>
            <form asp-action="ImportStoryIntelligenceNarrative" method="post" class="onboarding-actions" data-story-review-form>
                <input type="hidden" name="BatchID" value="@Model.BatchID" />
                <a class="btn btn-outline-secondary" asp-action="StoryIntelligenceReviewCentre" asp-route-batchId="@Model.BatchID">Back to Review Centre</a>
                <button class="btn btn-primary" type="submit" data-busy-label="Saving plot lines...">Mark reviewed</button>
            </form>
        }
        else
        {
            <form asp-action="ImportStoryIntelligenceNarrative" method="post" data-story-review-form>
                <input type="hidden" name="BatchID" value="@Model.BatchID" />
                @if (hiddenCandidateCount > 0)
                {
                    <div class="story-review-card-actions">
                        <span class="story-review-page-status">Showing @narrativeCandidates.Count.ToString("N0") of @Model.NarrativeReview.Candidates.Count.ToString("N0")</span>
                    </div>
                }
                <div class="story-character-card-grid">
                    @for (var i = 0; i < narrativeCandidates.Count; i++)
                    {
                        var candidate = narrativeCandidates[i];
                        <details class="story-character-card" open>
                            <summary class="story-review-card-header">
                                <span>
                                    <strong>@candidate.ProposedTitle</strong>
                                    <small>@candidate.CandidateType @(!string.IsNullOrWhiteSpace(candidate.Category) ? $"- {candidate.Category}" : string.Empty)</small>
                                </span>
                                <em>@candidate.Confidence</em>
                            </summary>
                            <input type="hidden" name="Candidates[@i].NarrativeCandidateID" value="@candidate.NarrativeCandidateID" />
                            <input type="hidden" name="Candidates[@i].CandidateType" value="@candidate.CandidateType" />
                            <div class="story-character-card__body">
                                <div>
                                    <label>Title</label>
                                    <input class="form-control" name="Candidates[@i].Title" value="@candidate.ProposedTitle" maxlength="200" />
                                </div>
                                <div>
                                    <label>Description</label>
                                    <textarea class="form-control" name="Candidates[@i].Description" rows="3">@candidate.ProposedDescription</textarea>
                                </div>
                                @if (!string.IsNullOrWhiteSpace(candidate.AuthorPlotSeedDescription))
                                {
                                    <div class="story-review-note">
                                        <strong>Author provided</strong>
                                        <p>@candidate.AuthorPlotSeedDescription</p>
                                        @if (!string.IsNullOrWhiteSpace(candidate.SeedMatchReason))
                                        {
                                            <p class="text-muted mb-0">@candidate.SeedMatchReason</p>
                                        }
                                    </div>
                                }
                                else if (string.Equals(candidate.Source, WholeBookPlotSynthesisSources.WholeBook, StringComparison.OrdinalIgnoreCase))
                                {
                                    <p class="text-muted">Discovered by PlotDirector</p>
                                }
                                @if (candidate.ExistingPlotLineID.HasValue && !string.IsNullOrWhiteSpace(candidate.ExistingPlotLineName))
                                {
                                    <p class="text-muted">Existing Plot Line: @candidate.ExistingPlotLineName</p>
                                }
                                @if (string.Equals(candidate.CandidateType, StoryIntelligenceNarrativeCandidateTypes.Thread, StringComparison.OrdinalIgnoreCase))
                                {
                                    @if (!string.IsNullOrWhiteSpace(candidate.ParentCandidateTitle))
                                    {
                                        <p class="text-muted">Proposed parent: @candidate.ParentCandidateTitle</p>
                                    }
                                    <div>
                                        <label>Existing related Plot Line</label>
                                        <select class="form-select" name="Candidates[@i].RelatedPlotLineID">
                                            <option value="">Choose Plot Line</option>
                                            @foreach (var option in Model.NarrativeReview.PlotLineOptions)
                                            {
                                                <option value="@option.Value" selected="@(candidate.RelatedPlotLineID?.ToString() == option.Value)">@option.Text</option>
                                            }
                                        </select>
                                    </div>
                                    <div>
                                        <label>Proposed parent Plot Line</label>
                                        <select class="form-select" name="Candidates[@i].ParentNarrativeCandidateID">
                                            <option value="">No proposed parent</option>
                                            @foreach (var option in Model.NarrativeReview.CandidatePlotLineOptions)
                                            {
                                                <option value="@option.Value" selected="@(candidate.ParentNarrativeCandidateID?.ToString() == option.Value)">@option.Text</option>
                                            }
                                        </select>
                                    </div>
                                }
                                <fieldset>
                                    <legend>Decision</legend>
                                    <label><input type="radio" name="Candidates[@i].Action" value="@StoryIntelligenceNarrativeReviewActions.AcceptNew" checked="@(candidate.DefaultAction == StoryIntelligenceNarrativeReviewActions.AcceptNew)" /> Accept new</label>
                                    <label><input type="radio" name="Candidates[@i].Action" value="@StoryIntelligenceNarrativeReviewActions.MergeExisting" checked="@(candidate.DefaultAction == StoryIntelligenceNarrativeReviewActions.MergeExisting)" /> Merge with existing</label>
                                    <label><input type="radio" name="Candidates[@i].Action" value="@StoryIntelligenceNarrativeReviewActions.MergeCandidate" /> Merge with candidate</label>
                                    <label><input type="radio" name="Candidates[@i].Action" value="@StoryIntelligenceNarrativeReviewActions.Reject" /> Reject</label>
                                </fieldset>
                                <div>
                                    <label>Existing Plot Line for merge</label>
                                    <select class="form-select" name="Candidates[@i].ExistingPlotLineID">
                                        <option value="">Choose existing Plot Line</option>
                                        @foreach (var option in Model.NarrativeReview.PlotLineOptions)
                                        {
                                            <option value="@option.Value" selected="@(candidate.ExistingPlotLineID?.ToString() == option.Value)">@option.Text</option>
                                        }
                                    </select>
                                </div>
                                <div>
                                    <label>Candidate for merge</label>
                                    <select class="form-select" name="Candidates[@i].MergeTargetNarrativeCandidateID">
                                        <option value="">Choose proposed candidate</option>
                                        @foreach (var option in narrativeCandidates.Where(item => item.NarrativeCandidateID != candidate.NarrativeCandidateID && string.Equals(item.CandidateType, candidate.CandidateType, StringComparison.OrdinalIgnoreCase)).Select(item => new SelectListItem(item.ProposedTitle, item.NarrativeCandidateID.ToString())))
                                        {
                                            <option value="@option.Value">@option.Text</option>
                                        }
                                    </select>
                                </div>
                                @if (candidate.ChildThreads.Count > 0)
                                {
                                    <div class="story-review-note">
                                        <strong>Suggested child Threads</strong>
                                        <ul>
                                            @foreach (var child in candidate.ChildThreads)
                                            {
                                                <li>@child.ProposedTitle</li>
                                            }
                                        </ul>
                                    </div>
                                }
                                @if (candidate.Events.Count > 0)
                                {
                                    <div class="story-review-note">
                                        <strong>Proposed timeline events</strong>
                                        @for (var e = 0; e < candidate.Events.Count; e++)
                                        {
                                            var item = candidate.Events[e];
                                            <div class="story-review-event">
                                                <input type="hidden" name="Candidates[@i].Events[@e].NarrativeCandidateEventID" value="@item.NarrativeCandidateEventID" />
                                                <input type="hidden" name="Candidates[@i].Events[@e].Include" value="false" />
                                                <label class="story-review-event__include">
                                                    <input type="checkbox" name="Candidates[@i].Events[@e].Include" value="true" checked />
                                                    <span>@item.SceneLabel</span>
                                                </label>
                                                <div class="row g-2">
                                                    <div class="col-md-4">
                                                        <label>Event type</label>
                                                        <select class="form-select" name="Candidates[@i].Events[@e].EventType">
                                                            @foreach (var eventType in eventTypes)
                                                            {
                                                                <option value="@eventType" selected="@(string.Equals(item.EventType, eventType, StringComparison.OrdinalIgnoreCase))">@eventType</option>
                                                            }
                                                        </select>
                                                    </div>
                                                    <div class="col-md-8">
                                                        <label>Title</label>
                                                        <input class="form-control" name="Candidates[@i].Events[@e].EventTitle" value="@item.EventTitle" maxlength="200" />
                                                    </div>
                                                    <div class="col-12">
                                                        <label>Description</label>
                                                        <textarea class="form-control" name="Candidates[@i].Events[@e].EventDescription" rows="2">@item.EventDescription</textarea>
                                                    </div>
                                                </div>
                                                @if (!string.IsNullOrWhiteSpace(item.Evidence))
                                                {
                                                    <p class="text-muted mb-0">@item.Evidence</p>
                                                }
                                            </div>
                                        }
                                    </div>
                                }
                                else
                                {
                                    <div class="story-review-note">
                                        <strong>Supporting scenes</strong>
                                        <ul>
                                            @foreach (var evidence in candidate.Evidence)
                                            {
                                                <li><strong>@evidence.SceneLabel</strong>: @(string.IsNullOrWhiteSpace(evidence.Evidence) ? evidence.ContributionType : evidence.Evidence)</li>
                                            }
                                        </ul>
                                    </div>
                                }
                            </div>
                        </details>
                    }
                </div>

                <div class="onboarding-actions">
                    @if (hiddenCandidateCount > 0)
                    {
                        <span class="text-muted">Save this batch to continue with @hiddenCandidateCount.ToString("N0") more narrative decision@(hiddenCandidateCount == 1 ? string.Empty : "s").</span>
                    }
                    <a class="btn btn-outline-secondary" asp-action="StoryIntelligenceReviewCentre" asp-route-batchId="@Model.BatchID">Back to Review Centre</a>
                    <button class="btn btn-primary" type="submit" data-busy-label="Saving plot lines...">Save Plot Lines & Threads</button>
                </div>
            </form>
        }
    </div>
</section>

@section Scripts {
    <script src="~/js/story-review-actions.js" asp-append-version="true"></script>
}