using Codex.CQRS.Commands;
using Codex.CQRS.Queries;
using Codex.Dal.QueryProviders;
using Microsoft.AspNetCore.Mvc;
using Microsoft.OpenApi.Models;
using OpenHarbor.CQRS.Abstractions;
using OpenHarbor.CQRS.DynamicQuery.Abstractions;
using PoweredSoft.Data.Core;
using PoweredSoft.DynamicQuery;
using PoweredSoft.DynamicQuery.Core;

namespace Codex.Api.Endpoints;

/// <summary>
/// Manual endpoint registration for endpoints requiring custom OpenAPI documentation.
/// OpenHarbor.CQRS v8.1.0-rc1 auto-registers and auto-documents all ICommandHandler implementations.
/// Manual registration should only be used for advanced customization needs.
/// </summary>
public static class ManualEndpointRegistration
{
    public static WebApplication MapCodexEndpoints(this WebApplication app)
    {
        // ============================================================
        // COMMANDS - AUTO-REGISTERED BY OPENHARBOR.CQRS
        // ============================================================
        // All commands are automatically registered and documented by the framework:
        // - CreateAgent (no return value)
        // - UpdateAgent (no return value)
        // - DeleteAgent (no return value)
        // - CreateConversation (returns Guid)
        // - StartAgentExecution (returns Guid)
        // - CompleteAgentExecution (no return value)
        //
        // Routes: POST /api/command/{commandName}
        // Documentation: Automatically generated from XML comments in command classes

        // ============================================================
        // QUERIES - AUTO-REGISTERED BY OPENHARBOR.CQRS
        // ============================================================
        // All queries are automatically registered and documented by the framework:
        // - Health (simple check)
        // - GetAgent (returns AgentDetails)
        // - GetAgentExecution (returns AgentExecutionDetails)
        // - GetConversation (returns ConversationDetails)
        //
        // Routes: POST /api/query/{queryName}
        // Documentation: Automatically generated from XML comments in query classes

        // ============================================================
        // DYNAMIC QUERIES (Paginated Lists)
        // ============================================================
        // NOTE: Dynamic queries are auto-registered by OpenHarbor but not auto-documented.
        // They work via /api/dynamicquery/{ItemType} but aren't in Swagger without manual registration.
        // The endpoints exist and function - frontend can use them directly from openapi.json examples below.

        // Manual registration disabled for now - OpenHarbor handles these automatically
        // TODO: Add proper schema documentation for dynamic query request/response

        /*
        // ListAgents
        app.MapPost("/api/dynamicquery/ListAgentsQueryItem",
            async (HttpContext context,
                   IQueryableProvider<ListAgentsQueryItem> provider,
                   IAsyncQueryableService queryService) =>
            {
                var query = await context.Request.ReadFromJsonAsync<object>();
                var queryable = await provider.GetQueryableAsync(query!);
                var result = await queryService.ExecuteAsync(queryable, query!);
                return Results.Ok(result);
            })
            .WithName("ListAgents")
            .WithTags("DynamicQuery")
            .WithOpenApi(operation => new(operation)
            {
                Summary = "List agents with filtering, sorting, and pagination",
                Description = @"Dynamic query endpoint supporting:
- **Filtering**: Filter by any property (Name, Type, Status, etc.)
- **Sorting**: Sort by one or multiple properties
- **Pagination**: Page and PageSize parameters
- **Aggregates**: Count, Sum, Average on numeric fields

### Example Request
```json
{
  ""filters"": [
    { ""path"": ""Name"", ""operator"": ""Contains"", ""value"": ""search"" },
    { ""path"": ""Status"", ""operator"": ""Equal"", ""value"": ""Active"" }
  ],
  ""sorts"": [{ ""path"": ""CreatedAt"", ""descending"": true }],
  ""page"": 1,
  ""pageSize"": 20
}
```",
                Responses = new OpenApiResponses
                {
                    ["200"] = new OpenApiResponse
                    {
                        Description = "Paginated list of agents",
                        Content = new Dictionary<string, OpenApiMediaType>
                        {
                            ["application/json"] = new OpenApiMediaType
                            {
                                Schema = new OpenApiSchema
                                {
                                    Type = "object",
                                    Properties = new Dictionary<string, OpenApiSchema>
                                    {
                                        ["data"] = new OpenApiSchema
                                        {
                                            Type = "array",
                                            Items = new OpenApiSchema
                                            {
                                                Reference = new OpenApiReference
                                                {
                                                    Type = ReferenceType.Schema,
                                                    Id = nameof(ListAgentsQueryItem)
                                                }
                                            }
                                        },
                                        ["page"] = new OpenApiSchema { Type = "integer" },
                                        ["pageSize"] = new OpenApiSchema { Type = "integer" },
                                        ["totalCount"] = new OpenApiSchema { Type = "integer" }
                                    }
                                }
                            }
                        }
                    }
                }
            })
            .Produces<object>(200);

        // ListConversations
        app.MapPost("/api/dynamicquery/ListConversationsQueryItem",
            async (HttpContext context,
                   IQueryableProvider<ListConversationsQueryItem> provider,
                   IAsyncQueryableService queryService) =>
            {
                var query = await context.Request.ReadFromJsonAsync<object>();
                var queryable = await provider.GetQueryableAsync(query!);
                var result = await queryService.ExecuteAsync(queryable, query!);
                return Results.Ok(result);
            })
            .WithName("ListConversations")
            .WithTags("DynamicQuery")
            .WithOpenApi(operation => new(operation)
            {
                Summary = "List conversations with filtering, sorting, and pagination",
                Description = "Returns paginated conversations with message counts and metadata",
                Responses = new OpenApiResponses
                {
                    ["200"] = new OpenApiResponse
                    {
                        Description = "Paginated list of conversations",
                        Content = new Dictionary<string, OpenApiMediaType>
                        {
                            ["application/json"] = new OpenApiMediaType
                            {
                                Schema = new OpenApiSchema
                                {
                                    Type = "object",
                                    Properties = new Dictionary<string, OpenApiSchema>
                                    {
                                        ["data"] = new OpenApiSchema
                                        {
                                            Type = "array",
                                            Items = new OpenApiSchema
                                            {
                                                Reference = new OpenApiReference
                                                {
                                                    Type = ReferenceType.Schema,
                                                    Id = nameof(ListConversationsQueryItem)
                                                }
                                            }
                                        },
                                        ["totalCount"] = new OpenApiSchema { Type = "integer" }
                                    }
                                }
                            }
                        }
                    }
                }
            })
            .Produces<object>(200);

        // ListAgentExecutions
        app.MapPost("/api/dynamicquery/ListAgentExecutionsQueryItem",
            async (HttpContext context,
                   IQueryableProvider<ListAgentExecutionsQueryItem> provider,
                   IAsyncQueryableService queryService) =>
            {
                var query = await context.Request.ReadFromJsonAsync<object>();
                var queryable = await provider.GetQueryableAsync(query!);
                var result = await queryService.ExecuteAsync(queryable, query!);
                return Results.Ok(result);
            })
            .WithName("ListAgentExecutions")
            .WithTags("DynamicQuery")
            .WithOpenApi(operation => new(operation)
            {
                Summary = "List agent executions with filtering, sorting, and pagination",
                Description = "Returns paginated execution history with tokens, costs, and status",
                Responses = new OpenApiResponses
                {
                    ["200"] = new OpenApiResponse
                    {
                        Description = "Paginated list of executions",
                        Content = new Dictionary<string, OpenApiMediaType>
                        {
                            ["application/json"] = new OpenApiMediaType
                            {
                                Schema = new OpenApiSchema
                                {
                                    Type = "object",
                                    Properties = new Dictionary<string, OpenApiSchema>
                                    {
                                        ["data"] = new OpenApiSchema
                                        {
                                            Type = "array",
                                            Items = new OpenApiSchema
                                            {
                                                Reference = new OpenApiReference
                                                {
                                                    Type = ReferenceType.Schema,
                                                    Id = nameof(ListAgentExecutionsQueryItem)
                                                }
                                            }
                                        },
                                        ["totalCount"] = new OpenApiSchema { Type = "integer" }
                                    }
                                }
                            }
                        }
                    }
                }
            })
            .Produces<object>(200);
        */

        return app;
    }
}