using Microsoft.Extensions.Logging;
using StellaOps.Plugin;

namespace StellaOps.Plugin.MyConnector;

/// <summary>
/// Connector implementation for MyConnector.
/// </summary>
public sealed class MyConnector : IFeedConnector
{
    private readonly ILogger<MyConnector> _logger;
    private readonly MyConnectorOptions _options;

    public MyConnector(ILogger<MyConnector> logger, MyConnectorOptions options)
    {
        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
        _options = options ?? throw new ArgumentNullException(nameof(options));
    }

    /// <summary>
    /// Gets the unique identifier for this connector.
    /// </summary>
    public string Id => "my-connector";

    /// <summary>
    /// Gets the display name for this connector.
    /// </summary>
    public string DisplayName => "My Connector";

    /// <inheritdoc />
    public async Task<FetchResult> FetchAsync(FetchContext context, CancellationToken cancellationToken = default)
    {
        _logger.LogInformation("Fetching data from {ConnectorId}...", Id);

        // TODO: Implement your fetch logic here
        // Example: Download data from an external source
        await Task.Delay(100, cancellationToken); // Placeholder

        return new FetchResult(
            Success: true,
            Data: Array.Empty<byte>(),
            ContentType: "application/json",
            ETag: null);
    }

    /// <inheritdoc />
    public async Task<ParseResult> ParseAsync(byte[] data, CancellationToken cancellationToken = default)
    {
        _logger.LogInformation("Parsing data from {ConnectorId}...", Id);

        // TODO: Implement your parsing logic here
        await Task.Yield();

        return new ParseResult(
            Success: true,
            Items: Array.Empty<object>(),
            Errors: Array.Empty<string>());
    }

    /// <inheritdoc />
    public async Task<MapResult> MapAsync(object item, CancellationToken cancellationToken = default)
    {
        _logger.LogInformation("Mapping item from {ConnectorId}...", Id);

        // TODO: Implement your mapping logic here
        await Task.Yield();

        return new MapResult(
            Success: true,
            MappedItem: item,
            Errors: Array.Empty<string>());
    }
}

/// <summary>
/// Result of a fetch operation.
/// </summary>
public sealed record FetchResult(
    bool Success,
    byte[] Data,
    string? ContentType,
    string? ETag);

/// <summary>
/// Result of a parse operation.
/// </summary>
public sealed record ParseResult(
    bool Success,
    IReadOnlyList<object> Items,
    IReadOnlyList<string> Errors);

/// <summary>
/// Result of a map operation.
/// </summary>
public sealed record MapResult(
    bool Success,
    object? MappedItem,
    IReadOnlyList<string> Errors);

/// <summary>
/// Context for fetch operations.
/// </summary>
public sealed record FetchContext(
    string? LastETag = null,
    DateTimeOffset? LastFetchTime = null);