@page "/Servers/Add"
@page "/Servers/{id:guid}"
@page "/Servers/{id:guid}/General"
@attribute [Authorize(Roles = RoleService.AdministratorRoleName)]
@using System.Runtime.InteropServices
@using Docker.DotNet.Models
@using LANCommander.SDK.Enums
@using LANCommander.Server.Data.Enums
@using LANCommander.Server.Services.Abstractions
@using LANCommander.Server.Services.ServerEngines
@using LANCommander.Server.UI.Pages.Servers.Components
@inject ServerService ServerService
@inject GameService GameService
@inject DockerServerEngine DockerServerEngine
@inject NavigationManager NavigationManager
@inject IMessageService MessageService
@inject ILogger<General> Logger

<ServerEditView Id="Id">
    <TitleTemplate>
        @if (context.Id == Guid.Empty)
        {
            <Text>Add New Server</Text>
        }
        else
        {
            <Text>General</Text>
        }
    </TitleTemplate>
    <TitleExtraTemplate>
        @if (context != null && context.Id != Guid.Empty)
        {
            <Flex Align="FlexAlign.Center" Justify="FlexJustify.End" Wrap="FlexWrap.NoWrap" Gap="FlexGap.Small">
                <ServerControl ServerId="context.Id" />

                <Dropdown Trigger="@(new Trigger[] { Trigger.Click })">
                    <Overlay>
                        <Menu>
                            <MenuItem>
                                <a href="/Server/@(context.Id)/Export/Full" target="_blank">Full</a>
                            </MenuItem>
                        </Menu>
                    </Overlay>
                    <ChildContent>
                        <Button>Export</Button>
                    </ChildContent>
                </Dropdown>
            </Flex>
        }
    </TitleExtraTemplate>
    
    <ChildContent>
        <Form Model="@context" Layout="@FormLayout.Vertical" Context="formContext">
            <FormItem Label="Name">
                <Input @bind-Value="@context.Name" AutoFocus="context.Id == Guid.Empty" />
            </FormItem>
            <FormItem Label="Game">
                <Select TItem="Game"
                        TItemValue="Guid?"
                        DataSource="@Games.OrderBy(g => String.IsNullOrWhiteSpace(g.SortTitle) ? g.Title : g.SortTitle)"
                        @bind-Value="@context.GameId"
                        LabelName="Title"
                        ValueName="Id"
                        Placeholder="Select a Game"
                        DefaultActiveFirstOption="false"
                        EnableSearch>
                    <ItemTemplate Context="game">
                        @game.Title
                    </ItemTemplate>
                </Select>
            </FormItem>
            
            <FormItem Label="Engine">
                <EnumSelect TEnum="ServerEngine" @bind-Value="context.Engine" />
            </FormItem>
            
            @if (context.Engine == ServerEngine.Docker)
            {
                <FormItem Label="Docker Host">
                    <Select
                        TItem="ServerEngineConfiguration"
                        TItemValue="Guid?"
                        DataSource="Settings.Servers.ServerEngines"
                        LabelName="Name"
                        ValueName="Id"
                        @bind-Value="context.DockerHostId"
                        OnSelectedItemChanged="ChangeDockerHost"></Select>
                </FormItem>
                
                <FormItem Label="Container">
                    <Select
                        TItem="DockerContainer"
                        TItemValue="string"
                        DataSource="Containers"
                        Disabled="!Containers.Any()"
                        LabelName="Name"
                        ValueName="Id"
                        @bind-Value="context.ContainerId"></Select>
                </FormItem>
            }
            
            <FormItem Label="Executable Path">
                <FilePicker Root="@RootPath" EntrySelectable="x => x is FileManagerFile" @bind-Value="@context.Path" OnSelected="(path) => context.WorkingDirectory = Path.GetDirectoryName(path)" />
            </FormItem>
            <FormItem Label="Arguments">
                <Input @bind-Value="@context.Arguments" />
            </FormItem>
            <FormItem Label="Working Directory">
                <FilePicker Root="@RootPath" Title="Choose Working Directory" OkText="Select Directory" EntrySelectable="x => x is FileManagerDirectory" @bind-Value="@context.WorkingDirectory" />
            </FormItem>
            <FormItem Label="Host">
                <Input @bind-Value="@context.Host" />
            </FormItem>
            <FormItem Label="Port" HasFeedback="@PortInUse" Help="@(PortInUse ? "Another server may already be bound to this port" : "")" ValidateStatus="@(PortInUse ? FormValidateStatus.Warning : FormValidateStatus.Default)">
                <ServerPortInput @bind-Value="@context.Port" @bind-PortInUse="PortInUse" ServerId="context.Id" />
            </FormItem>
            <FormItem>
                <LabelTemplate>
                    Use Shell Execute
                    <Tooltip Title="This option specifies whether you would like to run the server using the shell. Some servers may require this as they will have a UI or won't output logs to stdout">
                        <Icon Type="@IconType.Outline.QuestionCircle" Theme="@IconThemeType.Outline" />
                    </Tooltip>
                </LabelTemplate>
                <ChildContent>
                    <Switch @bind-Checked="context.UseShellExecute" />
                </ChildContent>
            </FormItem>
            <FormItem Label="Termination Method">
                <Select @bind-Value="context.ProcessTerminationMethod" TItem="ProcessTerminationMethod" TItemValue="ProcessTerminationMethod" DataSource="AllowedProcessTerminationMethods" />
            </FormItem>
            <FormItem>
                <Button Type="@ButtonType.Primary" OnClick="() => Save(context)" Icon="@IconType.Fill.Save">Save</Button>
            </FormItem>
        </Form>
    </ChildContent>
</ServerEditView>

@code {
    [Parameter] public Guid Id { get; set; }
    
    IEnumerable<Game> Games = new List<Game>();
    IEnumerable<DockerContainer> Containers = new List<DockerContainer>();
    
    Settings Settings = SettingService.GetSettings();

    Guid GameId;
    
    string RootPath = Path.GetPathRoot(Directory.GetCurrentDirectory());
    bool PortInUse = false;
    
    IEnumerable<ProcessTerminationMethod> AllowedProcessTerminationMethods
    {
        get
        {
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) || RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
                return new ProcessTerminationMethod[]
                {
                    ProcessTerminationMethod.SIGHUP,
                    ProcessTerminationMethod.SIGINT,
                    ProcessTerminationMethod.SIGKILL,
                    ProcessTerminationMethod.SIGTERM
                };
            else
                return new ProcessTerminationMethod[]
                {
                    ProcessTerminationMethod.Close,
                    ProcessTerminationMethod.Kill
                };
        }
    }

    protected override async Task OnInitializedAsync()
    {
        Games = await GameService.Include(g => g.Media).GetAsync();
    }

    async Task ChangeDockerHost(ServerEngineConfiguration hostConfiguration)
    {
        Containers = await DockerServerEngine.GetContainersAsync(hostConfiguration.Id);
    }
    
    async Task Save(Server server)
    {
        try
        {
            if (server.Id != Guid.Empty)
            {
                server = await ServerService.UpdateAsync(server);

                await MessageService.SuccessAsync("Server updated!");
            }
            else
            {
                server = await ServerService.AddAsync(server);

                NavigationManager.LocationChanged += NotifyServerAdded;

                NavigationManager.NavigateTo($"/Servers/{server.Id}");
            }
        }
        catch (Exception ex)
        {
            MessageService.Error("Could not save!");
            Logger.LogError(ex, "Could not save!");
        }
    }

    void NotifyServerAdded(object? sender, LocationChangedEventArgs e)
    {
        NavigationManager.LocationChanged -= NotifyServerAdded;

        MessageService.Success("Server added!");
    }
}