namespace MarketAlly.AIPlugin.ClaudeCode;

/// <summary>
/// Service for managing Claude Code context and memory
/// </summary>
public interface IContextClaudeService
{
    /// <summary>
    /// Retrieves relevant context for a query or conversation
    /// </summary>
    /// <param name="query">The query to find context for</param>
    /// <param name="projectPath">Optional project path to scope the search</param>
    /// <param name="maxResults">Maximum number of results to return</param>
    /// <param name="cancellationToken">Cancellation token</param>
    /// <returns>Relevant context entries</returns>
    Task<ClaudeCodeResponse<List<ContextEntry>>> GetRelevantContextAsync(
        string query, 
        string? projectPath = null, 
        int maxResults = 10, 
        CancellationToken cancellationToken = default);

    /// <summary>
    /// Stores context information for future retrieval
    /// </summary>
    /// <param name="entry">The context entry to store</param>
    /// <param name="cancellationToken">Cancellation token</param>
    /// <returns>Success response with stored entry ID</returns>
    Task<ClaudeCodeResponse<string>> StoreContextAsync(ContextEntry entry, CancellationToken cancellationToken = default);

    /// <summary>
    /// Retrieves conversation history for a session
    /// </summary>
    /// <param name="sessionId">Session identifier</param>
    /// <param name="maxMessages">Maximum number of messages to return</param>
    /// <param name="cancellationToken">Cancellation token</param>
    /// <returns>Conversation history</returns>
    Task<ClaudeCodeResponse<List<ConversationMessage>>> GetConversationHistoryAsync(
        string sessionId, 
        int maxMessages = 50, 
        CancellationToken cancellationToken = default);

    /// <summary>
    /// Stores a conversation message
    /// </summary>
    /// <param name="message">The conversation message to store</param>
    /// <param name="cancellationToken">Cancellation token</param>
    /// <returns>Success response</returns>
    Task<ClaudeCodeResponse<bool>> StoreConversationMessageAsync(ConversationMessage message, CancellationToken cancellationToken = default);

    /// <summary>
    /// Gets project-specific insights and decisions
    /// </summary>
    /// <param name="projectPath">Project path</param>
    /// <param name="category">Optional category filter</param>
    /// <param name="cancellationToken">Cancellation token</param>
    /// <returns>Project insights</returns>
    Task<ClaudeCodeResponse<List<ProjectInsight>>> GetProjectInsightsAsync(
        string projectPath, 
        string? category = null, 
        CancellationToken cancellationToken = default);

    /// <summary>
    /// Stores a project insight or decision
    /// </summary>
    /// <param name="insight">The insight to store</param>
    /// <param name="cancellationToken">Cancellation token</param>
    /// <returns>Success response</returns>
    Task<ClaudeCodeResponse<string>> StoreProjectInsightAsync(ProjectInsight insight, CancellationToken cancellationToken = default);

    /// <summary>
    /// Searches across all stored context using semantic search
    /// </summary>
    /// <param name="query">Search query</param>
    /// <param name="filters">Optional filters</param>
    /// <param name="cancellationToken">Cancellation token</param>
    /// <returns>Search results</returns>
    Task<ClaudeCodeResponse<List<ContextSearchResult>>> SearchAllContextAsync(
        string query, 
        ContextSearchFilters? filters = null, 
        CancellationToken cancellationToken = default);
}

/// <summary>
/// Context entry model
/// </summary>
public class ContextEntry
{
    public string Id { get; set; } = Guid.NewGuid().ToString();
    public string Type { get; set; } = string.Empty; // conversation, decision, insight, documentation
    public string Content { get; set; } = string.Empty;
    public string? ProjectPath { get; set; }
    public string? SessionId { get; set; }
    public DateTime Timestamp { get; set; } = DateTime.UtcNow;
    public Dictionary<string, object> Metadata { get; set; } = new();
    public List<string> Tags { get; set; } = new();
    public double Relevance { get; set; } = 1.0;
}

/// <summary>
/// Conversation message model
/// </summary>
public class ConversationMessage
{
    public string Id { get; set; } = Guid.NewGuid().ToString();
    public string SessionId { get; set; } = string.Empty;
    public string Role { get; set; } = string.Empty; // user, assistant, system
    public string Content { get; set; } = string.Empty;
    public DateTime Timestamp { get; set; } = DateTime.UtcNow;
    public string? ProjectPath { get; set; }
    public Dictionary<string, object> Metadata { get; set; } = new();
    public List<string> Attachments { get; set; } = new();
}

/// <summary>
/// Project insight model
/// </summary>
public class ProjectInsight
{
    public string Id { get; set; } = Guid.NewGuid().ToString();
    public string ProjectPath { get; set; } = string.Empty;
    public string Type { get; set; } = string.Empty; // decision, pattern, recommendation, issue
    public string Category { get; set; } = string.Empty;
    public string Title { get; set; } = string.Empty;
    public string Description { get; set; } = string.Empty;
    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
    public DateTime? UpdatedAt { get; set; }
    public string Confidence { get; set; } = "medium"; // low, medium, high
    public List<string> Tags { get; set; } = new();
    public Dictionary<string, object> Data { get; set; } = new();
    public string? RelatedFiles { get; set; }
    public List<string> References { get; set; } = new();
}

/// <summary>
/// Context search filters
/// </summary>
public class ContextSearchFilters
{
    public string? ProjectPath { get; set; }
    public string? Type { get; set; }
    public string? Category { get; set; }
    public DateTime? FromDate { get; set; }
    public DateTime? ToDate { get; set; }
    public List<string>? Tags { get; set; }
    public int? MaxResults { get; set; } = 50;
    public double? MinRelevance { get; set; } = 0.5;
}