using AsbCloudApp.Data;
using AsbCloudApp.Exceptions;
using AsbCloudApp.Services;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Threading;
using System.Threading.Tasks;

namespace AsbCloudWebApi.Controllers;

/// <summary>
/// Формирование программы бурения
/// </summary>
[Route("api/well/{idWell}/drillingProgram")]
[ApiController]
[Authorize]
public class DrillingProgramController : ControllerBase
{
    private readonly IDrillingProgramService drillingProgramService;
    private readonly IWellService wellService;

    public DrillingProgramController(IDrillingProgramService drillingProgramService, IWellService wellService)
    {
        this.drillingProgramService = drillingProgramService;
        this.wellService = wellService;
    }

    /// <summary>
    /// Список категорий файлов из которых состоит программа бурения
    /// </summary>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpGet("categories")]
    [ProducesResponseType(typeof(FileCategoryDto[]), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> GetCategories(CancellationToken token)
    {
        var result = await drillingProgramService.GetCategoriesAsync(token);
        return Ok(result);
    }

    /// <summary>
    /// Список пользователей 
    /// </summary>
    /// <param name="idWell">id скважины</param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpGet("availableUsers")]
    [ProducesResponseType(typeof(FileCategoryDto[]), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> GetAvailableUsers(int idWell, CancellationToken token)
    {
        var result = await drillingProgramService.GetAvailableUsers(idWell, token);
        return Ok(result);
    }

    /// <summary>
    /// Состояние процесса согласования программы бурения
    /// </summary>
    /// <param name="idWell"> id скважины </param>
    /// <param name="token"> Токен отмены задачи </param>
    /// <returns> Возвращает файл программы бурения </returns>
    [HttpGet]
    [ProducesResponseType(typeof(DrillingProgramStateDto), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> GetStateAsync(int idWell, CancellationToken token)
    {
        var idCompany = User.GetCompanyId();

        var idUser = User.GetUserId();

        if (idCompany is null || idUser is null ||
            !await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
                idWell, token).ConfigureAwait(false))
            return Forbid();

        var result = await drillingProgramService.GetStateAsync(idWell, (int)idUser, token);
        return Ok(result);
    }

    /// <summary>
    /// Сброс ошибки формирования ПБ
    /// </summary>
    /// <param name="idWell"></param>
    /// <returns></returns>
    [HttpDelete("errors")]
    [Permission("DrillingProgram.get")]
    public IActionResult ClearError(int idWell)
    {
        drillingProgramService.ClearError(idWell);
        return Ok();
    }

    /// <summary>
    /// Загрузка файла для части программы бурения
    /// </summary>
    /// <param name="idWell"></param>
    /// <param name="idFileCategory">ID части программы. Не путать с категорией файла</param>
    /// <param name="files"></param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpPost("part/{idFileCategory}")]
    [Permission("DrillingProgram.get")]
    [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> AddFile(
        int idWell,
        int idFileCategory,
        [FromForm] IFormFileCollection files,
        CancellationToken token)
    {
        int? idCompany = User.GetCompanyId();
        int? idUser = User.GetUserId();

        if (idCompany is null || idUser is null)
            return Forbid();

        if (!await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
            idWell, token).ConfigureAwait(false))
            return Forbid();

        if (files.Count > 1)
            return this.ValidationBadRequest(nameof(files), "only 1 file can be uploaded");

        if (files.Count == 0)
            return this.ValidationBadRequest(nameof(files), "at list 1 file should be uploaded");

        var fileName = files[0].FileName;
        
        var fileStream = files[0].OpenReadStream();
        var result = await drillingProgramService.AddFile(idWell, idFileCategory, (int)idUser, fileName, fileStream, token);

        return Ok(result);
    }

    /// <summary>
    /// Добавляет разделы программы бурения
    /// </summary>
    /// <param name="idWell"></param>
    /// <param name="idFileCategories">Список категорий файлов, по которым будут добавлены части ПБ</param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpPost("part")]
    [Permission]
    [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> AddPartsAsync(int idWell, [Required] IEnumerable<int> idFileCategories, CancellationToken token)
    {
        int? idCompany = User.GetCompanyId();
        int? idUser = User.GetUserId();

        if (idCompany is null || idUser is null)
            return Forbid();

        if (!await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
            idWell, token).ConfigureAwait(false))
            return Forbid();

        var result = await drillingProgramService.AddPartsAsync(idWell, idFileCategories, token);
        return Ok(result);
    }

    /// <summary>
    /// Удаляет разделы программы бурения
    /// </summary>
    /// <param name="idWell"></param>
    /// <param name="idFileCategories">Список категорий файлов, по которым будут удалены части ПБ</param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpDelete("part")]
    [Permission]
    [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> RemovePartsAsync(int idWell, [Required] IEnumerable<int> idFileCategories, CancellationToken token)
    {
        int? idCompany = User.GetCompanyId();
        int? idUser = User.GetUserId();

        if (idCompany is null || idUser is null)
            return Forbid();

        if (!await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
            idWell, token).ConfigureAwait(false))
            return Forbid();

        var result = await drillingProgramService.RemovePartsAsync(idWell, idFileCategories, token);
        return Ok(result);
    }

    /// <summary>
    /// Добавить пользователя в список publishers или approvers части программы бурения
    /// </summary>
    /// <param name="idWell"></param>
    /// <param name="idUser"></param>
    /// <param name="idFileCategory"></param>
    /// <param name="idUserRole"></param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpPost("part/{idFileCategory}/user")]
    [Permission]
    [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> AddUserAsync(int idWell, [Required] int idUser, int idFileCategory, [Required] int idUserRole, CancellationToken token)
    {
        int? idCompany = User.GetCompanyId();
        int? idUserEditor = User.GetUserId();

        if (idCompany is null || idUserEditor is null)
            return Forbid();

        if (!await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
            idWell, token).ConfigureAwait(false))
            return Forbid();

        var result = await drillingProgramService.AddUserAsync(idWell, idFileCategory, idUser, idUserRole, token);
        return Ok(result);
    }

    /// <summary>
    /// Удалить пользователя из списка publishers или approvers части программы бурения
    /// </summary>
    /// <param name="idWell"></param>
    /// <param name="idUser"></param>
    /// <param name="idFileCategory"></param>
    /// <param name="idUserRole"></param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpDelete("part/{idFileCategory}/user/{idUser}")]
    [Permission]
    [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> RemoveUserAsync(int idWell, int idUser, int idFileCategory, [Required] int idUserRole, CancellationToken token)
    {
        int? idCompany = User.GetCompanyId();
        int? idUserEditor = User.GetUserId();

        if (idCompany is null || idUserEditor is null)
            return Forbid();

        if (!await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
            idWell, token).ConfigureAwait(false))
            return Forbid();

        var result = await drillingProgramService.RemoveUserAsync(idWell, idFileCategory, idUser, idUserRole, token);
        return Ok(result);
    }

    /// <summary>
    /// Создает метку для файла входящего в программу бурения, заменить существующую
    /// </summary>
    /// <param name="idWell"> id скважины </param>
    /// <param name="markDto">метка файла</param>
    /// <param name="token"> Токен отмены задачи </param>
    /// <returns></returns>
    [HttpPost("fileMark")]
    [Permission("DrillingProgram.get")]
    public async Task<IActionResult> AddOrReplaceFileMarkAsync(int idWell, FileMarkDto markDto, CancellationToken token)
    {
        var idCompany = User.GetCompanyId();

        var idUser = User.GetUserId();

        if (idCompany is null || idUser is null ||
            !await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
                idWell, token).ConfigureAwait(false))
            return Forbid();

        var result = await drillingProgramService.AddOrReplaceFileMarkAsync(markDto, (int)idUser, token)
            .ConfigureAwait(false);

        return Ok(result);
    }

    /// <summary>
    /// Помечает метку у файла входящего, в программу бурения, как удаленную
    /// </summary>
    /// <param name="idWell"> id скважины </param>
    /// <param name="idMark"> id метки </param>
    /// <param name="token"> Токен отмены задачи </param>
    /// <returns></returns>
    [HttpDelete("fileMark/{idMark}")]
    [Permission("DrillingProgram.get")]
    [ProducesResponseType(typeof(int), (int)System.Net.HttpStatusCode.OK)]
    public async Task<IActionResult> MarkAsDeletedFileMarkAsync(int idWell, int idMark,
        CancellationToken token)
    {
        var idCompany = User.GetCompanyId();

        if (idCompany is null || !await wellService.IsCompanyInvolvedInWellAsync((int)idCompany,
            idWell, token).ConfigureAwait(false))
            return Forbid();

        var result = await drillingProgramService.MarkAsDeletedFileMarkAsync(idMark, token)
            .ConfigureAwait(false);

        return Ok(result);
    }
}