using System.ComponentModel;
using ModelContextProtocol.Server;

namespace MoneyMap.Mcp.Tools;

[McpServerToolType]
public static class CategoryTools
{
    [McpServerTool(Name = "list_categories"), Description("List all categories with transaction counts.")]
    public static async Task<string> ListCategories(
        MoneyMapApiClient api = default!)
    {
        return await api.ListCategoriesAsync();
    }

    [McpServerTool(Name = "get_category_mappings"), Description("Get auto-categorization pattern rules (CategoryMappings).")]
    public static async Task<string> GetCategoryMappings(
        [Description("Filter mappings to a specific category")] string? category = null,
        MoneyMapApiClient api = default!)
    {
        return await api.GetCategoryMappingsAsync(category);
    }

    [McpServerTool(Name = "add_category_mapping"), Description("Add a new auto-categorization rule that maps transaction name patterns to categories.")]
    public static async Task<string> AddCategoryMapping(
        [Description("Pattern to match in transaction name (case-insensitive)")] string pattern,
        [Description("Category to assign when pattern matches")] string category,
        [Description("Merchant name to assign (creates if new)")] string? merchantName = null,
        [Description("Priority (higher = checked first, default 0)")] int priority = 0,
        MoneyMapApiClient api = default!)
    {
        return await api.AddCategoryMappingAsync(pattern, category, merchantName, priority);
    }
}