using System.Collections.Generic;
using System.Linq;
using Sozsoft.Platform;

namespace Sozsoft.Mcp;

/// <summary>
/// /mcp ucunda yayinlanan arac adlari. Ayni degerler MCP Servers ekranindaki
/// <c>AllowedTools</c> alaninin secenek listesini besler; buraya bir arac eklenirse ekranin
/// statik lookup listesi de guncellenir.
/// </summary>
public static class McpToolNames
{
    public const string ServerInfo = "server_info";
    public const string ListLists = "list_lists";
    public const string DescribeList = "describe_list";
    public const string SearchSchema = "search_schema";
    public const string QueryList = "query_list";
    public const string RunSelect = "run_select";
    public const string ListQueries = "list_queries";
    public const string RunQuery = "run_query";
    public const string InsertRow = "insert_row";
    public const string UpdateRow = "update_row";
    public const string DeleteRow = "delete_row";
    public const string GetDevGuide = "get_dev_guide";
    public const string CreateTable = "create_table";
    public const string ListWizards = "list_wizards";
    public const string GetWizard = "get_wizard";
    public const string DeployWizard = "deploy_wizard";
    public const string DeleteWizard = "delete_wizard";
    public const string ListComponents = "list_components";
    public const string GetComponent = "get_component";
    public const string SaveComponent = "save_component";
    public const string DeleteComponent = "delete_component";

    /// <summary>
    /// Ekran ve bilesen gelistirme araclari. Sunucu bazinda <c>AllowedTools</c> ile, kullanici
    /// bazinda <c>McpServers.Develop</c> yetkisiyle kapatilir.
    /// </summary>
    public static readonly string[] DevelopTools =
    [
        GetDevGuide,
        CreateTable,
        ListWizards,
        GetWizard,
        DeployWizard,
        DeleteWizard,
        ListComponents,
        GetComponent,
        SaveComponent,
        DeleteComponent
    ];

    /// <summary>
    /// Sunucu kaydi olmasa da acik kalan araclar. Istemcinin baglantisinin neden bos
    /// gorundugunu anlayabilmesi icin gereklidir.
    /// </summary>
    public static readonly string[] AlwaysAvailableTools = [ServerInfo];

    /// <summary>
    /// Kiraci kullanicisinin gorebildigi araclarin tamami; kiraci baglaminda MCP yalnizca veri
    /// okur. <c>AllowedTools</c> bu kumeyi yalnizca daraltabilir, genisletemez. <see cref="RunQuery"/>
    /// ve <see cref="ListQueries"/> disarida kalir: procedure ve Custom Endpoint cagrisi veri
    /// yazabilir, okuma oldugu garanti edilemez. <see cref="RunSelect"/> ise tek SELECT disindaki
    /// her ifadeyi reddettigi icin okumadir.
    /// </summary>
    public static readonly string[] TenantTools =
    [
        ServerInfo,
        ListLists,
        DescribeList,
        SearchSchema,
        QueryList,
        RunSelect
    ];

    /// <summary>
    /// Kullanicinin uygulamada da sahip olmasi gereken yetki. MCP yetki vermez: ham SQL'i
    /// uygulamada SQL Query Manager'i kullanabilen, veri yazmayi yazma yetkisi olan kullanici
    /// gorur. Listede olmayan araclar kendi icinde liste bazli yetkiyle suzulur. Gelistirme
    /// araclarinin arkasindaki Wizard ve Custom Components servisleri kendi yetkilerini ayrica
    /// ister; Develop yalnizca MCP kapisidir.
    /// </summary>
    public static readonly IReadOnlyDictionary<string, string> RequiredPermissions = new Dictionary<string, string>
    {
        [RunSelect] = PlatformConsts.AppCodes.SqlQueryManagers.Default,
        [InsertRow] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Write,
        [UpdateRow] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Write,
        [DeleteRow] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Write,
        [GetDevGuide] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [CreateTable] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [ListWizards] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [GetWizard] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [DeployWizard] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [DeleteWizard] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [ListComponents] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [GetComponent] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [SaveComponent] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
        [DeleteComponent] = PlatformConsts.AppCodes.DeveloperKits.McpServers.Develop,
    };

    /// <summary>Yayinlanan tum araclar, arac listesindeki siralarina gore.</summary>
    public static readonly string[] All =
    [
        ServerInfo,
        ListLists,
        DescribeList,
        SearchSchema,
        QueryList,
        RunSelect,
        ListQueries,
        RunQuery,
        InsertRow,
        UpdateRow,
        DeleteRow,
        .. DevelopTools
    ];

    /// <summary>
    /// <c>AllowedTools</c> alaninda secilebilen araclar. Her zaman acik olanlar secenek
    /// olarak sunulmaz; onlari kapatmak mumkun degildir.
    /// </summary>
    public static IEnumerable<string> SelectableTools
        => All.Where(name => !AlwaysAvailableTools.Contains(name));
}