@page "/editor"
@using Katheryne.Services
@using Katheryne.Exceptions
@inject NavigationManager Navigation
@inject KatheryneChatRobotFactory RobotFactory

<Layout>
    <Content>
        <div class="editor-zone">
            <div class="control-zone">
                <Space Size="@("0")">
                    <SpaceItem>
                        <Button Type="@ButtonType.Text" OnClick="@QuitButtontClicked">
                            退出
                        </Button>
                    </SpaceItem>

                    <SpaceItem>
                        <Button Type="@ButtonType.Text" @onclick="@CompileGrammarClicked">
                            编译
                        </Button>
                    </SpaceItem>
                </Space>
            </div>
            
            <StandaloneCodeEditor Id="code-editor" @ref="@_editor"
                                  ConstructionOptions="GetEditorConstructionOptions"/>

            <div class="logging-zone">
                <AntList TItem="@string" DataSource="@_logs" Split="@false" @ref="@_logList">
                    <ListItem Style="padding: 0 0 0">
                        <p class="logging-item">@context</p>
                    </ListItem>
                </AntList>
            </div>
        </div>
    </Content>
</Layout>

@code {
    private StandaloneCodeEditor _editor = null!;
    private AntList<string> _logList = null!;

    private readonly List<string> _logs = new();

    protected override async Task OnInitializedAsync()
    {
        Log("编辑器加载完成");
        await base.OnInitializedAsync();
    }

    private StandaloneEditorConstructionOptions GetEditorConstructionOptions(StandaloneCodeEditor editor)
    {
        string grammarText;
        if (!string.IsNullOrEmpty(RobotFactory.GrammarText))
        {
            Log("加载文法...");
            grammarText = RobotFactory.GrammarText;
        }
        else
        {
            Log("未设置文法");
            grammarText = string.Empty;
        }

        return new StandaloneEditorConstructionOptions
        {
            Language = "yaml",
            Value = grammarText
        };
    }

    private async Task CompileGrammarClicked()
    {
        string grammarText = await _editor.GetValue();

        try
        {
            Log("编译文法...");
            RobotFactory.SetGrammar(grammarText);
            Log("编译成功!");
        }
        catch (GrammarException e)
        {
            Log($"编译文法遇到错误：{e.Message}");
        }
    }

    private void QuitButtontClicked()
    {
        Navigation.NavigateTo("/", replace: true);
    }

    private void Log(string message)
    {
        _logs.Add($"{DateTime.Now:HH:mm:ss} {message}");
        StateHasChanged();
    }   
}