@page "/szf-parser-test"
@using SessionZero.Data
@using Microsoft.Extensions.Logging
@inject SzfParser SzfParser
@inject ILogger<SzfParser> Logger
@inject SzfGenerator SzfGenerator

<h1>SZF Parser and Generator Test Page</h1>

<div class="test-container">
    <div class="input-section">
        <h2>SZF Input</h2>
        <div>
            <textarea id="szf-input" @bind="szfCode" rows="20"></textarea>
        </div>
        <button @onclick="ParseSzf">Parse SZF</button>
        @if (parsedObject != null)
        {
            <button @onclick="GenerateSzf">Generate SZF from Parsed Object</button>
        }
    </div>
    <div class="output-section">
        <h2>Parsed Object Data</h2>
        @if (parsedObject != null)
        {
            <table>
                <tbody>
                <tr><th>Object Type</th><td>@parsedObject.TypeIdentifier</td></tr>
                @if (!string.IsNullOrEmpty(parsedSchemaVersion))
                {
                    <tr><th>Schema Version</th><td>@parsedSchemaVersion</td></tr>
                }
                <tr><th>Name</th><td>@parsedObject.Metadata.Name</td></tr>
                <tr><th>Version</th><td>@parsedObject.Metadata.Version</td></tr>
                <tr><th>ID</th><td>@parsedObject.Metadata.Guid</td></tr>
                <tr><th>Author</th><td>@parsedObject.Metadata.Author</td></tr>
                <tr><th>Description</th><td>@parsedObject.Metadata.Description</td></tr>
                </tbody>
            </table>

            @* Display Dataset specific data *@
            @if (parsedObject is Dataset dataset)
            {
                @if (dataset.Metadata.Any()) // Display Dataset's specific metadata
                {
                    <h3>Dataset Specific Metadata</h3>
                    <table>
                        <thead>
                        <tr>
                            <th>Key</th>
                            <th>Value</th>
                        </tr>
                        </thead>
                        <tbody>
                        @foreach (var meta in dataset.Metadata)
                        {
                            <tr>
                                <td>@meta.Key</td>
                                <td>@meta.Value</td>
                            </tr>
                        }
                        </tbody>
                    </table>
                }

                @if (dataset.Entries.Any())
                {
                    <h3>Dataset Entries</h3>
                    @foreach (var entry in dataset.Entries)
                    {
                        <div>
                            <h4>Entry: @entry.Name</h4>
                            @if (entry.Fields.Any())
                            {
                                <table>
                                    <tbody>
                                    @foreach (var field in entry.Fields)
                                    {
                                        <tr>
                                            <td><strong>@field.Name</strong></td>
                                            <td>@field.Value</td>
                                        </tr>
                                    }
                                    </tbody>
                                </table>
                            }
                            @foreach (var section in entry.Sections)
                            {
                                @RenderDatasetSection(section)
                            }
                        </div>
                    }
                }
            }

            @* Display CharacterTemplate specific data *@
            @if (parsedObject is CharacterTemplate characterTemplate)
            {
                @if (characterTemplate.RequiredDatasets.Any())
                {
                    <h3>Required Datasets</h3>
                    <table>
                        <thead>
                        <tr>
                            <th>Alias</th>
                            <th>Name</th>
                            <th>GUID</th>
                            <th>Version</th>
                        </tr>
                        </thead>
                        <tbody>
                        @foreach (var reqDataset in characterTemplate.RequiredDatasets)
                        {
                            <tr>
                                <td>@reqDataset.Alias</td>
                                <td>@reqDataset.Reference?.Name</td>
                                <td>@reqDataset.Reference?.Guid</td>
                                <td>@reqDataset.Reference?.Version</td>
                            </tr>
                        }
                        </tbody>
                    </table>
                }

                @if (characterTemplate.Sections.Any())
                {
                    <h3>Template Sections</h3>
                    @foreach (var section in characterTemplate.Sections)
                    {
                        @RenderTemplateSection(section)
                    }
                }
            }

            @* Display Character specific data *@
            @if (parsedObject is Character character)
            {
                @if (character.CharacterSections.Any())
                {
                    <h3>Character Sections</h3>
                    @foreach (var section in character.CharacterSections)
                    {
                        @RenderCharacterSection(section)
                    }
                }
            }
        }
        @if (errorMessages.Any())
        {
            <div>
                <h4>Errors</h4>
                <ul>
                    @foreach (var error in errorMessages)
                    {
                        <li>@error</li>
                    }
                </ul>
            </div>
        }
    </div>
    <div class="generated-output-section">
        <h2>Generated SZF Output</h2>
        @if (!string.IsNullOrEmpty(generatedSzfOutput))
        {
            <textarea id="generated-szf-output" @bind="generatedSzfOutput" rows="20" readonly></textarea>
        }
        else
        {
            <p>No SZF has been generated yet.</p>
        }
    </div>
</div>

<div class="logs-section">
    <h2>Logs</h2>
    <pre>@string.Join("\n", logMessages)</pre>
</div>

<style>
    .test-container {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr; /* Three columns for input, parsed data, generated output */
        gap: 20px;
    }

    .input-section, .output-section, .generated-output-section {
        border: 1px solid #ccc;
        padding: 15px;
        border-radius: 5px;
    }

    textarea {
        width: 100%;
        box-sizing: border-box; /* Include padding and border in the element's total width and height */
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 10px;
    }

    th, td {
        border: 1px solid #ddd;
        padding: 8px;
        text-align: left;
    }

    th {
        background-color: #f2f2f2;
    }

    .logs-section {
        margin-top: 20px;
        border: 1px solid #ccc;
        padding: 15px;
        border-radius: 5px;
    }

    pre {
        white-space: pre-wrap; /* Ensures logs wrap */
        word-wrap: break-word;
    }
</style>

@code {
    private string szfCode = string.Empty;
    private SzfObject? parsedObject;
    private string? parsedSchemaVersion; // To store the schema version from parsing
    private string generatedSzfOutput = string.Empty; // New field for generated output
    private List<string> logMessages = new List<string>();
    private List<string> errorMessages = new List<string>();

    private void ParseSzf()
    {
        ClearState(); // Clear previous states
        Log("Starting SZF parsing...");

        if (string.IsNullOrWhiteSpace(szfCode))
        {
            const string message = "SZF code input is empty.";
            LogError(message);
            errorMessages.Add(message);
            return;
        }

        try
        {
            var parseResult = SzfParser.ParseSzfStructure(szfCode.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries).ToList());

            // Create the SzfObject instance from the parseResult
            parsedObject = SzfParser.CreateInstanceFromTypeIdentifier(parseResult.ObjectTypeIdentifier);
            SzfParser.PopulateSzfObject(parsedObject, parseResult);

            parsedSchemaVersion = parseResult.SchemaVersion; // Store the parsed schema version

            Log("SZF content parsed successfully.");
            Log($"Object Type: {parsedObject.TypeIdentifier}");
            Log($"Schema Version: {parsedSchemaVersion}");
        }
        catch (Exception ex)
        {
            const string message = "An error occurred during parsing.";
            LogError(message, ex);
            errorMessages.Add($"{message} See logs for details.");
        }
    }

    private void GenerateSzf()
    {
        generatedSzfOutput = string.Empty; // Clear previous generated output
        if (parsedObject == null)
        {
            Log("No object to generate from. Please parse an SZF first.");
            return;
        }

        Log("Starting SZF generation...");
        try
        {
            // Use the SzfGenerator to generate the string
            generatedSzfOutput = SzfGenerator.Generate(parsedObject);
            Log("SZF content generated successfully.");
        }
        catch (Exception ex)
        {
            const string message = "An error occurred during generation.";
            LogError(message, ex);
            errorMessages.Add($"{message} See logs for details.");
        }
    }

    private void ClearState()
    {
        logMessages.Clear();
        errorMessages.Clear();
        parsedObject = null;
        parsedSchemaVersion = null; // Clear parsed schema version
        generatedSzfOutput = string.Empty;
    }

    private void Log(string message)
    {
        Logger.LogInformation(message);
        logMessages.Add($"[INFO] {message}");
    }

    private void LogError(string message, Exception? ex = null)
    {
        Logger.LogError(ex, message);
        logMessages.Add($"[ERROR] {message}{(ex is not null ? $": {ex.Message}" : "")}");
    }

    // Helper for rendering Dataset sections (retained from original, adapted for basic HTML)
    private RenderFragment RenderDatasetSection(DatasetSection dataSection) =>@<div>
        <strong>@dataSection.Name</strong>
        @if (dataSection.Fields.Any())
        {
            <table>
                <tbody>
                @foreach (var field in dataSection.Fields)
                {
                    <tr>
                        <td><strong>@field.Name</strong></td>
                        <td>@field.Value</td>
                    </tr>
                }
                </tbody>
            </table>
        }
        @foreach (var subSection in dataSection.Subsections)
        {
            @RenderDatasetSection(subSection)
        }
    </div>;

    // Helper for rendering CharacterTemplate sections
    private RenderFragment RenderTemplateSection(TemplateSection templateSection) =>@<div>
        <strong>@templateSection.Name</strong>
        @if (templateSection.Fields.Any())
        {
            <table>
                <tbody>
                @foreach (var field in templateSection.Fields)
                {
                    <tr>
                        <td><strong>@field.Name</strong></td>
                        <td>@field.Value</td>
                    </tr>
                }
                </tbody>
            </table>
        }
        @foreach (var subSection in templateSection.Subsections)
        {
            @RenderTemplateSection(subSection)
        }
    </div>;

    // New helper for rendering Character sections
    private RenderFragment RenderCharacterSection(CharacterSection characterSection) =>@<div>
        <h4>@characterSection.Name</h4>
        @if (characterSection.Fields.Any())
        {
            <table>
                <tbody>
                @foreach (var field in characterSection.Fields)
                {
                    <tr>
                        <td><strong>@field.Name</strong></td>
                        <td>@field.Value</td>
                    </tr>
                }
                </tbody>
            </table>
        }
        @foreach (var subSection in characterSection.Subsections)
        {
            @RenderCharacterSection(subSection)
        }
    </div>;
}