using System.ComponentModel.DataAnnotations;
using ErsatzTV.Application.ChannelTemplates;
using ErsatzTV.Controllers.Api.Requests;
using ErsatzTV.Core;
using ErsatzTV.Core.Api.ChannelTemplates;
using ErsatzTV.Extensions;
using MediatR;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace ErsatzTV.Controllers.Api;

[ApiController]
public class ChannelTemplateController(IMediator mediator) : ControllerBase
{
    [HttpGet("/api/v1/channel-templates", Name = "GetChannelTemplates")]
    [Tags("Channel Templates")]
    [EndpointSummary("Get all channel templates")]
    [EndpointGroupName("general")]
    [ProducesResponseType(typeof(List<ChannelTemplateResponseModel>), StatusCodes.Status200OK)]
    public async Task<List<ChannelTemplateResponseModel>> GetAll(CancellationToken cancellationToken) =>
        await mediator.Send(new GetAllChannelTemplates(), cancellationToken);

    [HttpGet("/api/v1/channel-templates/default", Name = "GetDefaultChannelTemplate")]
    [Tags("Channel Templates")]
    [EndpointSummary("Get the default channel template")]
    [EndpointGroupName("general")]
    [ProducesResponseType(typeof(ChannelTemplateResponseModel), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
    public async Task<IActionResult> GetDefault(CancellationToken cancellationToken)
    {
        Option<ChannelTemplateResponseModel> result =
            await mediator.Send(new GetDefaultChannelTemplate(), cancellationToken);
        return result.ToGetResult();
    }

    [HttpPut("/api/v1/channel-templates/default/{id:int}", Name = "SetDefaultChannelTemplate")]
    [Tags("Channel Templates")]
    [EndpointSummary("Set the default channel template")]
    [EndpointGroupName("general")]
    [ProducesResponseType(typeof(ChannelTemplateResponseModel), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status422UnprocessableEntity)]
    public async Task<IActionResult> SetDefault(int id, CancellationToken cancellationToken)
    {
        Either<BaseError, ChannelTemplateResponseModel> result =
            await mediator.Send(new SetDefaultChannelTemplate(id), cancellationToken);
        return result.ToUpdatedResult();
    }

    [HttpGet("/api/v1/channel-templates/{id:int}", Name = "GetChannelTemplateById")]
    [Tags("Channel Templates")]
    [EndpointSummary("Get a channel template by id")]
    [EndpointGroupName("general")]
    [ProducesResponseType(typeof(ChannelTemplateResponseModel), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
    public async Task<IActionResult> GetById(int id, CancellationToken cancellationToken)
    {
        Option<ChannelTemplateResponseModel> result =
            await mediator.Send(new GetChannelTemplateById(id), cancellationToken);
        return result.ToGetResult();
    }

    [HttpPost("/api/v1/channel-templates", Name = "CreateChannelTemplate")]
    [Tags("Channel Templates")]
    [EndpointSummary("Create a channel template")]
    [EndpointGroupName("general")]
    [ProducesResponseType(typeof(ChannelTemplateResponseModel), StatusCodes.Status201Created)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status422UnprocessableEntity)]
    public async Task<IActionResult> Create(
        [Required][FromBody] CreateChannelTemplateRequest request,
        CancellationToken cancellationToken)
    {
        Either<BaseError, ChannelTemplateResponseModel> result =
            await mediator.Send(request.ToCommand(), cancellationToken);
        return result.ToCreatedResult(vm => $"/api/v1/channel-templates/{vm.Id}", vm => vm);
    }

    [HttpPut("/api/v1/channel-templates/{id:int}", Name = "UpdateChannelTemplate")]
    [Tags("Channel Templates")]
    [EndpointSummary("Update a channel template")]
    [EndpointGroupName("general")]
    [ProducesResponseType(typeof(ChannelTemplateResponseModel), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status422UnprocessableEntity)]
    public async Task<IActionResult> Update(
        int id,
        [Required][FromBody] UpdateChannelTemplateRequest request,
        CancellationToken cancellationToken)
    {
        Either<BaseError, ChannelTemplateResponseModel> result =
            await mediator.Send(request.ToCommand(id), cancellationToken);
        return result.ToUpdatedResult();
    }

    [HttpDelete("/api/v1/channel-templates/{id:int}", Name = "DeleteChannelTemplate")]
    [Tags("Channel Templates")]
    [EndpointSummary("Delete a channel template")]
    [EndpointGroupName("general")]
    [ProducesResponseType(StatusCodes.Status204NoContent)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status404NotFound)]
    [ProducesResponseType(typeof(ProblemDetails), StatusCodes.Status422UnprocessableEntity)]
    public async Task<IActionResult> Delete(int id, CancellationToken cancellationToken)
    {
        Either<BaseError, Unit> result = await mediator.Send(new DeleteChannelTemplate(id), cancellationToken);
        return result.ToDeletedResult();
    }
}