@implements IDisposable;
@inject ISearchService searchService
@inject IJSRuntime jsRuntime

@inject NavigationManager navigationManager

@if (searchService.IsLoaded() && searchService.IsVisible)
{
    <div class="dialogOverlay" onclick="@CloseDialog">
        <div class="dialogContainer searchDialog"
             @onclick:preventDefault="true"
             @onclick:stopPropagation="true">

            <div class="dialogHeader">
                <div class="dialogTitle">Search</div>
                <button class="dialogCloseBtn" @onclick="CloseDialog">&times;</button>
            </div>

            <div class="dialogBody">
                <div class="searchInputWrapper">
                    <FormTextComponent OnFocus="OnFocus" Id="searchInput" Placeholder="Type to search..."
                                       OnInput="SearchChanged"></FormTextComponent>
                </div>

                <div class="searchResults">
                    @if (SearchText.Length > 0)
                    {
                        foreach (var searchSection in searchService.Searches)
                        {
                            var searchPoints = searchSection.Value.FindAll(x => x.Title.ToLower().Contains(SearchText.ToLower()));

                            if (searchPoints.Count > 0)
                            {
                                <div class="searchSection">
                                    <div class="searchSectionTitle">@searchSection.Key</div>
                                    <div class="searchSectionItems">
                                        @foreach (var searchPoint in searchPoints)
                                        {
                                            <button class="searchItem @searchPoint.PointType.ToLower()"
                                                    @onclick="() => OnSearch(searchPoint)">
                                                <span class="searchItemTitle">@searchPoint.Title</span>
                                                @if (!string.IsNullOrWhiteSpace(searchPoint.Summary))
                                                {
                                                    <span class="searchItemSummary"> - @searchPoint.Summary</span>
                                                }
                                            </button>
                                        }
                                    </div>
                                </div>
                            }
                        }
                    }
                </div>
            </div>
        </div>
    </div>

    <style>
        .dialogOverlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background-color: rgba(0, 0, 0, 0.6);
            display: flex;
            align-items: flex-start;
            justify-content: center;
            z-index: 1000;
            padding-top: 64px;
        }

        .dialogContainer {
            background-color: var(--paper);
            border-radius: var(--dialog-radius);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            display: flex;
            flex-direction: column;
            max-height: calc(100vh - 128px);
            overflow: hidden;
        }

        .searchDialog {
            width: 600px;
            max-width: calc(100% - 32px);
        }

        .dialogHeader {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
            border-bottom: 1px solid var(--paper-border);
            background-color: var(--accent);
            border-radius: var(--dialog-radius) var(--dialog-radius) 0 0;
            min-height: 52px;
        }

        .dialogTitle {
            font-size: 1.25rem;
            font-weight: 700;
            color: white;
        }

        .dialogCloseBtn {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0;
            line-height: 1;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            transition: background 0.15s, color 0.15s;
        }

        .dialogCloseBtn:hover {
            background: rgba(255, 255, 255, 0.15);
            color: white;
        }

        .dialogBody {
            padding: 20px;
            overflow-y: auto;
            flex: 1;
        }

        .searchInputWrapper {
            margin-bottom: 16px;
        }

        .searchResults {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .searchSection {
            display: flex;
            flex-direction: column;
        }

        .searchSectionTitle {
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--info-secondary-border);
            margin-bottom: 8px;
            padding-bottom: 4px;
            border-bottom: 1px solid var(--paper-border);
        }

        .searchSectionItems {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .searchItem {
            display: block;
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            border-radius: 6px;
            padding: 8px 12px;
            color: var(--text-primary, #ddd);
            cursor: pointer;
            transition: background 0.15s;
        }

        .searchItem:hover {
            background: var(--paper-hover);
            color: white;
        }

        .searchItemTitle {
            font-weight: 600;
        }

        .searchItemSummary {
            color: var(--info-secondary-border);
            font-size: 0.9rem;
        }
    </style>
}

@code {
    private string SearchText { get; set; } = "";

    protected override void OnInitialized()
    {
        searchService.Subscribe(OnSearchChanged);

        timer = new Timer(200);
        timer.Elapsed += FocusTimer;
        timer.Enabled = false;
    }

    private void FocusTimer(object? sender, ElapsedEventArgs e)
    {
        jsRuntime.InvokeVoidAsync("SetFocusToElement", "searchInput");
        StateHasChanged();
    }

    private Timer timer = null!;

    private void OnSearchChanged()
    {
        if (timer.Enabled != searchService.IsVisible)
        {
            timer.Enabled = searchService.IsVisible;
        }

        StateHasChanged();
    }

    public void Dispose()
    {
        searchService.Unsubscribe(OnSearchChanged);
        timer.Elapsed -= FocusTimer;
    }

    public void CloseDialog()
    {
        searchService.Hide();
    }

    public void NavigateTo(string url)
    {
        if (url.Contains("#"))
        {
            navigationManager.NavigateTo(url,
                navigationManager.Uri.Split("#").First().Contains(url.Split("#").First()));
        }
        else
        {
            navigationManager.NavigateTo(url);
        }
    }

    private void SearchChanged(ChangeEventArgs obj)
    {
        SearchText = obj.Value!.ToString()!;
    }

    private void OnSearch(SearchPointModel searchPoint)
    {
        NavigateTo(searchPoint.Href);
        searchService.Hide();
    }

    private void OnFocus(object obj)
    {
        timer.Enabled = false;
    }
}