@namespace Chrono.Components

@if (Card != null)
{
    <div class="modal-backdrop" @onclick="HandleBackdropClick"></div>
    <div class="card-detail @(!HasImage ? "card-detail-noimg" : "")">
        <button class="detail-close" @onclick="HandleClose"><i class="bi bi-x-lg"></i></button>
        <div class="detail-layout @(!HasImage ? "layout-noimg" : "")">
            @if (HasImage)
            {
                <div class="detail-image">
                    <img src="@Card.ImagePath" alt="@Card.Name"
                         onerror="this.style.display='none';this.parentElement.style.display='none'" />
                </div>
            }
            <div class="detail-info">
                <div class="detail-header">
                    <h2>@Card.Name</h2>
                    <div class="detail-meta">
                        <span class="meta-badge category @Card.Category?.ToLowerInvariant()">@Card.Category</span>
                        @if (Card.Cost.HasValue)
                        {
                            <span class="meta-badge cost"><i class="bi bi-lightning-fill"></i> @Card.Cost</span>
                        }
                        @if (Card.Attack.HasValue)
                        {
                            <span class="meta-badge attack"><i class="bi bi-crosshair"></i> @Card.Attack</span>
                        }
                        @if (Card.Health.HasValue)
                        {
                            <span class="meta-badge health"><i class="bi bi-heart-fill"></i> @Card.Health</span>
                        }
                        @if (Card.Speed != null)
                        {
                            <span class="meta-badge speed"><i class="bi bi-wind"></i> @Card.Speed</span>
                        }
                    </div>
                </div>

                @if (Card.Faction != null)
                {
                    <div class="detail-field">
                        <span class="field-label"><i class="bi bi-flag-fill"></i> Faction</span>
                        <span class="field-value">@Card.Faction</span>
                    </div>
                }

                @if (Card.Description != null)
                {
                    <div class="detail-field description">
                        <span class="field-label"><i class="bi bi-chat-quote-fill"></i></span>
                        <span class="field-value">@RenderDescription(Card.Description)</span>
                    </div>
                }

                @if (Card.Set != null)
                {
                    <div class="detail-field">
                        <span class="field-label"><i class="bi bi-collection"></i> Set</span>
                        <span class="field-value">@Card.Set</span>
                    </div>
                }

                @if (Card.Archetypes is { Count: > 0 })
                {
                    <div class="detail-field">
                        <span class="field-label"><i class="bi bi-layers-fill"></i> Archetypes</span>
                        <span class="field-value">@string.Join(", ", Card.Archetypes)</span>
                    </div>
                }

                @if (Card.ImmortalizeWhen != null)
                {
                    <div class="detail-field">
                        <span class="field-label"><i class="bi bi-star-fill"></i> Immortalize When</span>
                        <span class="field-value">@Card.ImmortalizeWhen</span>
                    </div>
                }

                @if (Card.HasImmortalize)
                {
                    <div class="detail-field">
                        <span class="field-label"><i class="bi bi-arrow-right-circle-fill"></i> Immortalizes To</span>
                        <span class="field-value">
                            @foreach (var name in Card.ImmortalizeTo!)
                            {
                                var targetName = name;
                                var target = LookupCard(targetName);
                                if (target != null)
                                {
                                    <button class="inline-card-btn" @onclick="() => Navigate(target)">@targetName</button>
                                }
                                else
                                {
                                    @targetName
                                }
                            }
                        </span>
                    </div>
                }

                @if (Card.ImmortalizeFrom != null)
                {
                    <div class="detail-field">
                        <span class="field-label"><i class="bi bi-arrow-left-circle-fill"></i> Immortalizes From</span>
                        <span class="field-value">
                            @{
                                var fromCard = LookupCard(Card.ImmortalizeFrom);
                                if (fromCard != null)
                                {
                                    <button class="inline-card-btn" @onclick="() => Navigate(fromCard)">@Card.ImmortalizeFrom</button>
                                }
                                else
                                {
                                    @Card.ImmortalizeFrom
                                }
                            }
                        </span>
                    </div>
                }

                @if (ShowNotes && Card.IsAgent)
                {
                    <div class="detail-field note">
                        <span class="field-label"><i class="bi bi-pencil-fill"></i> Personal Note</span>
                        <textarea class="form-control note-input" @bind="currentNote" @onblur="SaveNote"
                                  placeholder="Add a private note about this agent..."></textarea>
                        @if (isSaving)
                        {
                            <span class="saving-indicator">Saving...</span>
                        }
                    </div>
                }
            </div>
        </div>
    </div>
}

@code {
    [Parameter] public CardData? Card { get; set; }
    [Parameter] public EventCallback OnClose { get; set; }
    [Parameter] public EventCallback<CardData> OnNavigate { get; set; }
    [Parameter] public bool ShowNotes { get; set; }

    [Inject] private HttpClient Http { get; set; } = default!;

    private bool HasImage => Card?.ImageFile is { Length: > 0 } && Card.ImageFile != "placeholder.png";

    private string currentNote = "";
    private bool isSaving;

    protected override void OnParametersSet()
    {
        if (Card != null && Card.IsAgent)
        {
            currentNote = "";
            _ = LoadNote();
        }
    }

    private async Task LoadNote()
    {
        if (Card == null || !Card.IsAgent) return;
        try
        {
            var note = await Http.GetFromJsonAsync<CardNote>($"api/notes/{Uri.EscapeDataString(Card.Name)}");
            currentNote = note?.Note ?? "";
        }
        catch
        {
            currentNote = "";
        }
    }

    private async Task SaveNote()
    {
        if (Card == null || !Card.IsAgent) return;

        isSaving = true;
        try
        {
            await Http.PostAsJsonAsync("api/notes", new CardNote { CardName = Card.Name, Note = currentNote });
        }
        catch { }
        finally
        {
            isSaving = false;
        }
    }

    private void HandleClose()
    {
        _ = OnClose.InvokeAsync();
    }

    private void HandleBackdropClick()
    {
        _ = OnClose.InvokeAsync();
    }

    private void Navigate(CardData card)
    {
        _ = OnNavigate.InvokeAsync(card);
    }

    private static CardData? LookupCard(string cardName)
    {
        return CardDatabase.Cards.FirstOrDefault(c =>
            string.Equals(c.Name, cardName, StringComparison.OrdinalIgnoreCase));
    }

    private RenderFragment RenderDescription(string description) => builder =>
    {
        var cardNames = CardDatabase.Cards
            .Select(c => c.Name)
            .Where(n => !string.IsNullOrWhiteSpace(n))
            .OrderByDescending(n => n.Length)
            .ToList();

        int seq = 0;
        var remaining = description;

        while (!string.IsNullOrEmpty(remaining))
        {
            int bestIdx = -1;
            string? bestName = null;

            foreach (var name in cardNames)
            {
                int idx = remaining.IndexOf(name, StringComparison.OrdinalIgnoreCase);
                if (idx != -1 && (bestIdx == -1 || idx < bestIdx))
                {
                    bestIdx = idx;
                    bestName = name;
                }
            }

            if (bestIdx != -1 && bestName != null)
            {
                if (bestIdx > 0)
                    builder.AddContent(seq++, remaining[..bestIdx]);

                var card = LookupCard(bestName);
                if (card != null)
                {
                    builder.OpenElement(seq++, "button");
                    builder.AddAttribute(seq++, "class", "inline-card-btn");
                    builder.AddAttribute(seq++, "onclick",
                        EventCallback.Factory.Create(this, () => Navigate(card)));
                    builder.AddContent(seq++, bestName);
                    builder.CloseElement();
                }
                else
                {
                    builder.AddContent(seq++, bestName);
                }

                remaining = remaining[(bestIdx + bestName.Length)..];
            }
            else
            {
                builder.AddContent(seq++, remaining);
                remaining = "";
            }
        }
    };
}