using System.ComponentModel.DataAnnotations;
using Microsoft.AspNetCore.Mvc;
using SWAD.API.Consts;
using SWAD.API.Consts.Enums;
using SWAD.API.Controllers.DTOs;
using SWAD.API.Services.Links;

namespace SWAD.API.Controllers;

/// <summary>
///     Controller for get links from music providers
/// </summary>
[Tags($"{nameof(LinkController)}: Controller for get links from music providers")]
[Route("[controller]")]
[ApiController]
public class LinkController(LinksService linksService) : SwadController
{
    /// <summary>
    ///     Get link from other link
    /// </summary>
    /// <param Name="track">Track query such as Name, artist, Albums</param>
    /// <returns>Link for track</returns>
    [HttpPost("FromLink")]
    [ProducesResponseType(typeof(LinkResultDto), 200)]
    [ProducesResponseType(typeof(ProblemDetails), 400)]
    [ProducesResponseType(typeof(ProblemDetails), 404)]
    [ProducesResponseType(typeof(ProblemDetails), 502)]
    public async Task<IActionResult> GetLink(TrackLinkDto track)
    {
        var serviceResult = await linksService.MapLinks(track);

        switch (serviceResult.result)
        {
            case ServiceResult.Success:
                return Ok(new LinkResultDto(serviceResult.link));

            case ServiceResult.Failure:
                return BadRequest($"{track.Link} is not recognized. Try other link");

            case ServiceResult.NoResponse:
                return BadGateway("Bad gateway with one of services");

            case ServiceResult.BadRequest:
                return BadRequest($"Unknown service {track.Service} or parameters not valid");
            
            case ServiceResult.NotFound:
                return NotFound(ErrorResources.NotFound);
            
            case ServiceResult.TooManyRequests:
                return TooManyRequests("Yandex is shit, try again later.");
            
            default:
                throw new ApplicationException("Unknown response from service");
        }
    }

    /// <summary>
    ///     Get link from search query such as artist and song Name
    /// </summary>
    /// <param Name="track">Track query such as Name, artist, Albums</param>
    /// <returns>Link for track</returns>
    [HttpPost("FromQuery")]
    [ProducesResponseType(typeof(LinkResultDto), 200)]
    [ProducesResponseType(typeof(ProblemDetails), 400)]
    [ProducesResponseType(typeof(ProblemDetails), 404)]
    [ProducesResponseType(typeof(ProblemDetails), 502)]
    public async Task<IActionResult> GetLink(TrackDto track)
    {
        var serviceResult = await linksService.GetLinkByQuery(track);

        switch (serviceResult.result)
        {
            case ServiceResult.Success:
                return Ok(new LinkResultDto(serviceResult.link));

            case ServiceResult.Failure:
                return NotFound($"Track {track.Name} - {track.Artist} not found!");

            case ServiceResult.NoResponse:
                return BadGateway($"Bad gateway with service {track.Service}");

            case ServiceResult.BadRequest:
                return BadRequest($"Unknown service {track.Service} or parameters not valid");
            
            case ServiceResult.NotFound:
                return BadRequest(ErrorResources.NotFound);
            default:
                throw new ApplicationException($"Unknown response from service {linksService}");
        }
    }

    /// <summary>
    ///     Get service what uses that link
    /// </summary>
    /// <param name="link"></param>
    /// <returns></returns>
    /// <exception cref="ApplicationException"></exception>
    [HttpGet("GetService")]
    [ProducesResponseType(typeof(ServiceDto), 200)]
    [ProducesResponseType(typeof(ProblemDetails), 400)]
    public async Task<IActionResult> GetServiceOfLink([Required] string link)
    {
        var serviceResult = await linksService.GetServiceByLink(link);
        switch (serviceResult.result)
        {
            case ServiceResult.Success:
                return Ok(new ServiceDto(serviceResult.service!.Value,
                    serviceResult.service.Value.ToString()));
            case ServiceResult.Failure:
                return BadRequest($"{link} is not recognized. Try other link");
            default:
                throw new ApplicationException("WTF are you doing?");
        }
    }
}