@using LucideBlazor
@using Moonlight.Frontend.UI.Admin.Modals
@using Moonlight.Shared.Http.Responses.Admin
@using ShadcnBlazor.Cards
@using ShadcnBlazor.Emptys
@using ShadcnBlazor.Buttons
@using ShadcnBlazor.Extras.AlertDialogs
@using ShadcnBlazor.Extras.Common
@using ShadcnBlazor.Extras.Dialogs
@using ShadcnBlazor.Fields
@using ShadcnBlazor.Selects
@using ShadcnBlazor.Switches

@inject HttpClient HttpClient
@inject DialogService DialogService
@inject AlertDialogService AlertDialogService

<div class="mt-5">
    <LazyLoader Load="LoadAsync">
        @if (StatusDto.IsEnabled)
        {
            if (StatusDto.IsReachable)
            {
                <div class="grid grid-cols-1 lg:grid-cols-2 gap-5">
                    <Card ClassName="col-span-1">
                        <CardHeader>
                            <CardTitle>Version</CardTitle>
                        </CardHeader>
                        <CardContent>
                            <FieldGroup>
                                <FieldSet>
                                    <Field>
                                        <FieldLabel>Version / Branch</FieldLabel>
                                        <FieldContent>
                                            <Select DefaultValue="@SelectedVersion" @bind-Value="SelectedVersion">
                                                <SelectTrigger ClassName="w-64">
                                                    <SelectValue/>
                                                </SelectTrigger>
                                                <SelectContent ClassName="w-64">
                                                    @foreach (var version in Versions)
                                                    {
                                                        var displayName = version.Identifier;

                                                        if (version.IsDevelopment)
                                                            displayName += " (dev)";
                                                        
                                                        if (version.IsPreRelease)
                                                            displayName += " (beta)";
                                                        
                                                        <SelectItem Value="@version.Identifier">
                                                            @displayName
                                                        </SelectItem>
                                                    }
                                                </SelectContent>
                                            </Select>
                                        </FieldContent>
                                    </Field>
                                    <Field>
                                        <FieldLabel>Bypass Build Cache</FieldLabel>
                                        <FieldContent>
                                            <Switch @bind-Value="NoBuildCache"/>
                                        </FieldContent>
                                    </Field>
                                </FieldSet>
                                <Field Orientation="FieldOrientation.Horizontal">
                                    <Button @onclick="AskApplyAsync">Apply</Button>
                                </Field>
                            </FieldGroup>
                        </CardContent>
                    </Card>
                    <Card ClassName="col-span-1">
                        <CardHeader>
                            <CardTitle>Plugins</CardTitle>
                        </CardHeader>
                        <CardContent>
                            <Empty>
                                <EmptyHeader>
                                    <EmptyMedia Variant="EmptyMediaVariant.Icon">
                                        <SearchIcon/>
                                    </EmptyMedia>
                                    <EmptyTitle>No Plugins found</EmptyTitle>
                                    <EmptyDescription>
                                        No plugins found in instance configuration
                                    </EmptyDescription>
                                </EmptyHeader>
                            </Empty>
                        </CardContent>
                    </Card>
                </div>
            }
            else
            {
                <Empty>
                    <EmptyHeader>
                        <EmptyMedia Variant="EmptyMediaVariant.Icon">
                            <CircleAlertIcon ClassName="text-red-500"/>
                        </EmptyMedia>
                        <EmptyTitle>Container Helper unreachable</EmptyTitle>
                        <EmptyDescription>
                            The container helper is unreachable. No management actions are available
                        </EmptyDescription>
                    </EmptyHeader>
                </Empty>
            }
        }
        else
        {
            <Empty>
                <EmptyHeader>
                    <EmptyMedia Variant="EmptyMediaVariant.Icon">
                        <ToggleLeftIcon/>
                    </EmptyMedia>
                    <EmptyTitle>Container Helper is disabled</EmptyTitle>
                    <EmptyDescription>
                        The container helper is disabled on this instance.
                        This might be due to running a multiple container moonlight setup
                    </EmptyDescription>
                </EmptyHeader>
            </Empty>
        }
    </LazyLoader>
</div>

@code
{
    private ContainerHelperStatusDto StatusDto;
    private string SelectedVersion = "v2.1";
    private bool NoBuildCache;

    private VersionDto[] Versions;

    private async Task LoadAsync(LazyLoader _)
    {
        StatusDto = (await HttpClient.GetFromJsonAsync<ContainerHelperStatusDto>("api/admin/ch/status"))!;

        var currentVersion = await HttpClient.GetFromJsonAsync<VersionDto>("api/admin/versions/instance");

        if (currentVersion != null)
            SelectedVersion = currentVersion.Identifier;
        
        Versions = (await HttpClient.GetFromJsonAsync<VersionDto[]>("api/admin/versions"))!;
    }

    private async Task ApplyAsync()
    {
        await DialogService.LaunchAsync<UpdateInstanceModal>(
            parameters =>
            {
                parameters[nameof(UpdateInstanceModal.Version)] = SelectedVersion;
                parameters[nameof(UpdateInstanceModal.NoBuildCache)] = NoBuildCache;
            },
            onConfigure: model =>
            {
                model.ShowCloseButton = false;
                model.ClassName = "sm:max-w-4xl!";
            }
        );
    }

    private async Task AskApplyAsync()
    {
        if (string.IsNullOrWhiteSpace(SelectedVersion))
            return;

        var version = Versions.First(x => x.Identifier == SelectedVersion);

        var shouldContinue = await ConfirmRiskyVersionAsync(
            "Moonlight Rebuild",
            "If you continue the moonlight instance will become unavailable during the rebuild process. This will impact users on this instance"
        );

        if (!shouldContinue)
            return;

        if (version.IsDevelopment)
        {
            shouldContinue = await ConfirmRiskyVersionAsync(
                "Development Version",
                "You are about to install development a version. This can break your instance. Continue at your own risk"
            );
        }
        else
        {
            if (version.IsPreRelease)
            {
                shouldContinue = await ConfirmRiskyVersionAsync(
                    "Beta / Pre-Release Version",
                    "You are about to install a version marked as pre-release / beta. This can break your instance. Continue at your own risk"
                );
            }
            else
                shouldContinue = true;
        }

        if (!shouldContinue)
            return;

        await ApplyAsync();
    }

    private async Task<bool> ConfirmRiskyVersionAsync(string title, string message)
    {
        var tcs = new TaskCompletionSource();
        var confirmed = false;

        await AlertDialogService.ConfirmDangerAsync(
            title,
            message,
            () =>
            {
                confirmed = true;
                tcs.SetResult();
                return Task.CompletedTask;
            }
        );

        await tcs.Task;

        return confirmed;
    }
}