@inherits FeedbackComponent<VariablePickerOptions, string>

<Flex Direction="FlexDirection.Vertical" Gap="FlexGap.Large">
    <Input @ref="_input" @bind-Value="_value" />

    <Collapse DefaultActiveKey="@(new[] { "lancommander" })">
        <Panel Header="Variables" Key="lancommander">
            <Flex Gap="FlexGap.Small" Wrap="FlexWrap.Wrap">
                @foreach (var variable in LanCommanderVariables)
                {
                    <Tooltip Title="@variable.Description">
                        <Tag Class="variable-tag" Style="cursor: pointer" OnClick="() => InsertVariable(variable.Value)">@variable.Value</Tag>
                    </Tooltip>
                }
            </Flex>
        </Panel>

        <Panel Header="Environment Variables" Key="environment">
            <Flex Gap="FlexGap.Small" Wrap="FlexWrap.Wrap">
                @foreach (var variable in EnvironmentVariables)
                {
                    <Tag Class="variable-tag" Style="cursor: pointer" OnClick="() => InsertVariable(variable)">@variable</Tag>
                }
            </Flex>
        </Panel>

        <Panel Header="Special Folders" Key="specialfolders">
            <Flex Gap="FlexGap.Small" Wrap="FlexWrap.Wrap">
                @foreach (var variable in SpecialFolderVariables)
                {
                    <Tag Class="variable-tag" Style="cursor: pointer" OnClick="() => InsertVariable(variable)">@variable</Tag>
                }
            </Flex>
        </Panel>
    </Collapse>
</Flex>

@code {
    Input<string>? _input;
    string _value = "";

    static readonly (string Value, string Description)[] LanCommanderVariables =
    [
        ("{InstallDir}", "The game's installation directory"),
        ("{DisplayWidth}", "Primary display width in pixels"),
        ("{DisplayHeight}", "Primary display height in pixels"),
        ("{DisplayRefreshRate}", "Primary display refresh rate in Hz"),
        ("{DisplayBitDepth}", "Primary display bit depth in bpp"),
        ("{ServerAddress}", "LANCommander server address"),
        ("{IPXRelayHost}", "IPX relay host address"),
        ("{IPXRelayPort}", "IPX relay port"),
    ];

    static readonly string[] EnvironmentVariables =
    [
        "%TEMP%",
        "%TMP%",
        "%LOCALAPPDATA%",
        "%APPDATA%",
        "%USERPROFILE%",
        "%PUBLIC%",
        "%ProgramData%",
        "%CommonProgramFiles(x86)%",
        "%CommonProgramFiles%",
        "%ProgramFiles(x86)%",
        "%ProgramFiles%",
        "%SystemRoot%",
        "%windir%",
        "%USERNAME%",
        "%SystemDrive%",
    ];

    static readonly string[] SpecialFolderVariables =
    [
        "%MyDocuments%",
        "%Desktop%",
        "%MyMusic%",
        "%MyPictures%",
        "%MyVideos%",
        "%CommonApplicationData%",
        "%CommonDesktopDirectory%",
        "%CommonDocuments%",
        "%CommonMusic%",
        "%CommonPictures%",
        "%CommonPrograms%",
        "%CommonStartMenu%",
        "%CommonStartup%",
        "%CommonVideos%",
        "%Fonts%",
        "%StartMenu%",
    ];

    protected override void OnInitialized()
    {
        _value = Options?.Value ?? "";
    }

    void InsertVariable(string variable)
    {
        _value += variable;
        StateHasChanged();
    }

    public override async Task OnFeedbackOkAsync(ModalClosingEventArgs args)
    {
        await base.OkCancelRefWithResult!.OnOk(_value);
    }
}