@page "/"
@page "/{id:guid}"
@using LANCommander.Client.Data.Models
@using LANCommander.Client.Enums
@using LANCommander.Client.Models
@using System.Diagnostics
@using LANCommander.Client.UI.Library.Components
@using LANCommander.SDK.Helpers
@inject SDK.Client Client
@inject NavigationManager NavigationManager
@inject LibraryService LibraryService
@inject DownloadService DownloadService
@inject GameService GameService
@inject ModalService ModalService
@inject ConfirmService ConfirmService
@inject ImportService ImportService

<Layout>
    <Content Class="library">
        <LibraryList SelectedItem="@(SelectedGame?.Id)" OnItemSelected="@((key) => NavigationManager.NavigateTo($"/{key}"))" />

        <div class="game-details no-scrollbar">
            @if (SelectedGame != null)
            {
                <div class="game-hero">
                    @if (SelectedGame.Media.Any(m => m.Type == SDK.Enums.MediaType.Logo))
                    {
                        <MediaImage Id="@(SelectedGame.Media.First(m => m.Type == SDK.Enums.MediaType.Logo).Id)" Class="game-details-logo" />
                    }
                    else
                    {
                        <h1>@SelectedGame.Title</h1>
                    }

                    @if (SelectedGame.Media.Any(m => m.Type == SDK.Enums.MediaType.Background))
                    {
                        <MediaImage Id="@(SelectedGame.Media.First(m => m.Type == SDK.Enums.MediaType.Background).Id)" Class="game-details-background" />
                    }
                </div>
                <GridRow Gutter="32" Class="game-info" Wrap="false">
                    <GridCol Flex="@("auto")">
                        <div class="game-action-bar">
                            <Space Direction="@DirectionVHType.Horizontal" Size="@("large")">
                                <SpaceItem>
                                    @if (SelectedItem.State == LibraryItemState.Installed)
                                    {
                                        <PlayButton GameId="@SelectedItem.Key" />
                                    }
                                    else if (SelectedItem.State == LibraryItemState.NotInstalled)
                                    {
                                        <Button Type="@ButtonType.Primary" Size="@ButtonSize.Large" Icon="@IconType.Outline.Download" OnClick="() => Install(SelectedItem)">Install</Button>
                                    }
                                    else if (SelectedItem.State == LibraryItemState.Queued)
                                    {
                                        <Button Type="@ButtonType.Primary" Size="@ButtonSize.Large" Icon="@IconType.Outline.Bars" Disabled="true">Queued</Button>
                                    }
                                    else if (SelectedItem.State == LibraryItemState.UpdateAvailable)
                                    {
                                        <Button Type="@ButtonType.Primary" Size="@ButtonSize.Large" Icon="@IconType.Outline.Download">Update</Button>
                                    }
                                    else if (SelectedItem.State == LibraryItemState.Installing)
                                    {
                                        <Button Type="@ButtonType.Primary" Size="@ButtonSize.Large" Icon="@IconType.Outline.Loading" Disabled="true">Installing</Button>
                                    }
                                </SpaceItem>
                                <SpaceItem>
                                    <Statistic Title="Play Time" Value="@GetPlayTime(SelectedGame)" />
                                </SpaceItem>
                                <SpaceItem>
                                    <Statistic Title="Last Played" Value="@GetLastPlayed(SelectedGame)" />
                                </SpaceItem>
                            </Space>
                        </div>

                        <div class="game-metadata">
                            @if (!String.IsNullOrWhiteSpace(SelectedGame.Description))
                            {
                                <div class="game-metadata-description">@SelectedGame.Description</div>
                            }

                            @if (SelectedGame.ReleasedOn.HasValue)
                            {
                                <div class="game-metadata-released-on">
                                    <h3>Released On</h3>
                                    <span>@SelectedGame.ReleasedOn.Value.ToString("MMMM d, yyyy")</span>
                                </div>
                            }

                            @if (SelectedGame.Developers != null && SelectedGame.Developers.Any())
                            {
                                <div class="game-metadata-developers">
                                    <h3>Developers</h3>
                                    <span>@(String.Join(", ", SelectedGame.Developers.Select(c => c.Name)))</span>
                                </div>
                            }
                            
                            @if (SelectedGame.Publishers != null && SelectedGame.Publishers.Any())
                            {
                                <div class="game-metadata-publishers">
                                    <h3>Publishers</h3>
                                    <span>@(String.Join(", ", SelectedGame.Publishers.Select(c => c.Name)))</span>
                                </div>
                            }
                            
                            @if (SelectedGame.Genres != null && SelectedGame.Genres.Any())
                            {
                                <div class="game-metadata-genres">
                                    <h3>Genres</h3>
                                    <span>@(String.Join(", ", SelectedGame.Genres.Select(g => g.Name)))</span>
                                </div>
                            }

                            @if (SelectedGame.Tags != null && SelectedGame.Tags.Any())
                            {
                                <div class="game-metadata-tags">
                                    <h3>Tags</h3>
                                    <span>@(String.Join(", ", SelectedGame.Tags.Select(t => t.Name)))</span>
                                </div>
                            }
                        </div>
                    </GridCol>

                    <GridCol Flex="@("256px")" Class="game-cover">
                        @if (SelectedGame.Media.Any(m => m.Type == SDK.Enums.MediaType.Cover))
                        {
                            <MediaImage Id="@(SelectedGame.Media.First(m => m.Type == SDK.Enums.MediaType.Cover).Id)" />
                        }
                    </GridCol>
                </GridRow>
            }
        </div>
    </Content>
</Layout>

<div class="logo">
    <img src="assets/logo-cut.svg" />
</div>

<LANCommander.Client.UI.Components.Footer />

@code {
    [Parameter] public Guid Id { get; set; }

    LibraryItem SelectedItem { get; set; }

    Data.Models.Game SelectedGame { get; set; }
    IEnumerable<SDK.Models.Action> SelectedGameActions { get; set; }

    protected override async Task OnInitializedAsync()
    {
        DownloadService.OnQueueChanged += OnQueueChanged;
        DownloadService.OnInstallFail += OnInstallFail;
        DownloadService.OnInstallComplete += OnInstallComplete;
        GameService.OnUninstallComplete += OnUninstallComplete;

        LibraryService.GroupSelector = (libraryItem) =>
        {
            if (libraryItem.DataItem is Game game)
                return game.Collections.Select(c => c.Name).ToArray();
            else
                return new string[] { };
        };

        LoadData();
    }

    protected override async Task OnParametersSetAsync()
    {
        if (Id != Guid.Empty)
            await OnLibraryItemSelected(LibraryService.GetLibraryItem(Id));

        await InvokeAsync(StateHasChanged);
    }

    void LoadData()
    {
        LibraryService.RefreshLibraryItemsAsync().Wait();

        InvokeAsync(StateHasChanged);
    }

    async Task OnLibraryItemSelected(LibraryItem item)
    {
        if (item != null && item.DataItem is Data.Models.Game)
        {
            SelectedItem = item;
            SelectedGame = item.DataItem as Data.Models.Game;

            if (SelectedItem.State == LibraryItemState.Installed)
                SelectedGameActions = (await GameService.GetActionsAsync(SelectedGame)).Where(a => !a.IsPrimaryAction);
        }
    }

    async Task Install(LibraryItem item)
    {
        await LibraryService.Install(item);
    }

    async Task OnQueueChanged()
    {
        var queueItem = DownloadService.Queue.FirstOrDefault(i => SelectedItem != null && i.Id == SelectedItem.Key);

        if (queueItem != null)
        {
            SelectedItem = await LibraryService.GetLibraryItemAsync(SelectedItem);

            switch (queueItem.Status)
            {
                case DownloadStatus.Downloading:
                case DownloadStatus.InstallingRedistributables:
                case DownloadStatus.InstallingMods:
                case DownloadStatus.InstallingExpansions:
                case DownloadStatus.RunningScripts:
                case DownloadStatus.DownloadingSaves:
                    SelectedItem.State = LibraryItemState.Installing;
                    break;

                case DownloadStatus.Idle:
                    SelectedItem.State = LibraryItemState.Queued;
                    break;

                case DownloadStatus.Failed:
                case DownloadStatus.Canceled:
                    SelectedItem.State = LibraryItemState.NotInstalled;
                    break;

                case DownloadStatus.Complete:
                    SelectedItem.State = LibraryItemState.Installed;
                    break;
            }

            await OnLibraryItemSelected(SelectedItem);

            await InvokeAsync(StateHasChanged);
        }
    }

    async Task OnInstallComplete(Data.Models.Game game)
    {
        LoadData();

        if (SelectedItem.DataItem is Game selectedGame)
        {
            if (selectedGame.Id == game.Id)
                await OnLibraryItemSelected(LibraryService.LibraryItems.FirstOrDefault(i => i.Key == selectedGame.Id));
        }
    }

    async Task OnInstallFail(Data.Models.Game game)
    {
        var result = await ConfirmService.Show(
            $"The installation for {game.Title} has failed. Retry download?",
            "Installation Failed",
            ConfirmButtons.RetryCancel,
            ConfirmIcon.Error
        );

        await LibraryService.LibraryChanged();

        if (result == ConfirmResult.Retry)
        {
            var libraryItem = LibraryService.GetLibraryItem(game.Id);

            Install(libraryItem);
        }
    }

    async Task OnUninstallComplete(Data.Models.Game game)
    {
        LoadData();

        if (SelectedItem.DataItem is Game selectedGame)
        {
            if (selectedGame.Id == game.Id)
                await OnLibraryItemSelected(LibraryService.LibraryItems.FirstOrDefault(i => i.Key == selectedGame.Id));
        }
    }

    string GetPlayTime(Data.Models.Game game)
    {
        var totalTime = new TimeSpan(game.PlaySessions
            .Where(ps => ps.End != null && ps.Start != null)
            .Select(ps => ps.End.Value.Subtract(ps.Start.Value))
            .Sum(ts => ts.Ticks));
        if (totalTime.TotalMinutes < 1)
            return "None";
        else if (totalTime.TotalHours < 1)
            return totalTime.TotalMinutes.ToString("0") + " minutes";
        else
            return totalTime.TotalHours.ToString("0.##") + " hours";
    }

    string GetLastPlayed(Data.Models.Game game)
    {
        var lastSession = game.PlaySessions.Where(ps => ps.End != null && ps.Start != null).OrderByDescending(ps => ps.End).FirstOrDefault();

        if (lastSession == null)
            return "Never";
        else
            return lastSession.End.Value.ToRelativeDate();
    }
}