using dy.net.model.dto;
using dy.net.service;
using dy.net.storage;
using jzc.http.lib;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace dy.net.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    [Authorize]
    public class StorageController : ControllerBase
    {
        private readonly DouyinCommonService _commonService;
        private readonly OpenListSettingsService _openListSettingsService;
        private readonly OpenListMediaStorage _openListStorage;
        private readonly DouyinQuartzJobService _quartzJobService;
        private readonly DouyinVideoService _videoService;

        public StorageController(
            DouyinCommonService commonService,
            OpenListSettingsService openListSettingsService,
            OpenListMediaStorage openListStorage,
            DouyinQuartzJobService quartzJobService,
            DouyinVideoService videoService)
        {
            _commonService = commonService;
            _openListSettingsService = openListSettingsService;
            _openListStorage = openListStorage;
            _quartzJobService = quartzJobService;
            _videoService = videoService;
        }

        [HttpGet("inventory")]
        public async Task<IActionResult> GetInventory()
        {
            var type = _commonService.GetConfig()?.StorageType ?? StorageType.Local;
            return ApiResult.Success(await _videoService.GetStorageInventoryAsync(type));
        }

        [HttpGet("config")]
        public async Task<IActionResult> GetConfig()
        {
            var type = _commonService.GetConfig()?.StorageType ?? StorageType.Local;
            var inventory = await _videoService.GetStorageInventoryAsync(type);
            var saved = await _openListSettingsService.HasSavedSettingsAsync();
            var dto = await _openListSettingsService.ToDtoAsync(type);
            dto.RequiresCutover = type == StorageType.WebDav || inventory.WebDavRecordCount > 0;
            dto.LegacyWebDavRecordCount = inventory.WebDavRecordCount;
            dto.SuggestedFromLegacy = !saved;
            return ApiResult.Success(dto);
        }

        [HttpPost("test")]
        public async Task<IActionResult> Test(
            [FromBody] StorageTestRequest request, CancellationToken cancellationToken)
        {
            if (request == null) return ApiResult.Fail("测试请求不能为空");

            if (request.StorageType != StorageType.OpenList)
                return ApiResult.Fail("新远端存储只支持 OpenList 原生 API。");
            var candidate = await _openListSettingsService.BuildCandidateAsync(
                new OpenListTestRequest
                {
                    Endpoint = request.Endpoint,
                    BasePath = request.BasePath,
                    LocalStagingPath = request.LocalStagingPath,
                    SourcePath = request.SourcePath,
                    UserName = request.UserName,
                    Password = request.Password
                });
            var result = await _openListStorage.ProbeAsync(candidate, cancellationToken);
            return result.Success
                ? ApiResult.Success(new { message = result.Message })
                : ApiResult.Fail(result.Message);
        }

        [HttpPost("openlist/directories")]
        public async Task<IActionResult> ListOpenListDirectories(
            [FromBody] OpenListDirectoryRequest request,
            CancellationToken cancellationToken)
        {
            if (request == null) return ApiResult.Fail("目录请求不能为空");
            try
            {
                var candidate = await _openListSettingsService.BuildCandidateAsync(request);
                return ApiResult.Success(await _openListStorage.ListDirectoriesAsync(
                    candidate, request.Path, cancellationToken));
            }
            catch (Exception ex) when (ex is InvalidOperationException or HttpRequestException)
            { return ApiResult.Fail(ex.GetBaseException().Message); }
        }

        [HttpPut("config")]
        public async Task<IActionResult> Update(
            [FromBody] StorageSettingsDto dto, CancellationToken cancellationToken)
        {
            if (dto == null) return ApiResult.Fail("配置不能为空");

            if (dto.StorageType == StorageType.WebDav)
                return ApiResult.Fail("WebDAV 已停止作为新存储目标，请改用 OpenList 原生 API。");

            if (dto.StorageType == StorageType.OpenList)
            {
                var candidate = await _openListSettingsService.BuildCandidateAsync(
                    new OpenListTestRequest
                    {
                        Endpoint = dto.Endpoint,
                        BasePath = dto.BasePath,
                        LocalStagingPath = dto.LocalStagingPath,
                        SourcePath = dto.SourcePath,
                        UserName = dto.UserName,
                        Password = dto.Password
                    });

                var result = await _openListStorage.ProbeAsync(candidate, cancellationToken);
                if (!result.Success) return ApiResult.Fail("无法启用 OpenList：" + result.Message);

                await _openListSettingsService.SaveAsync(candidate, true, result.Message);
                await _openListSettingsService.InitializeCookiePathsAsync();

                var config = _commonService.GetConfig();
                if (config == null) return ApiResult.Fail("系统配置不存在");
                config.StorageType = dto.StorageType;
                if (!await _commonService.UpdateConfig(config))
                    return ApiResult.Fail("存储模式保存失败");
                await _quartzJobService.InitOrReStartAllJobs(config.Cron.ToString());

                var response = await _openListSettingsService.ToDtoAsync(config.StorageType);
                var inventory = await _videoService.GetStorageInventoryAsync(config.StorageType);
                response.RequiresCutover = inventory.WebDavRecordCount > 0;
                response.LegacyWebDavRecordCount = inventory.WebDavRecordCount;
                return ApiResult.Success(response);
            }

            if (dto.StorageType == StorageType.Local)
            {
                var config = _commonService.GetConfig();
                if (config == null) return ApiResult.Fail("系统配置不存在");
                config.StorageType = StorageType.Local;
                if (!await _commonService.UpdateConfig(config))
                    return ApiResult.Fail("存储模式保存失败");
                await _quartzJobService.InitOrReStartAllJobs(config.Cron.ToString());
                var response = await _openListSettingsService.ToDtoAsync(config.StorageType);
                var inventory = await _videoService.GetStorageInventoryAsync(config.StorageType);
                response.RequiresCutover = inventory.WebDavRecordCount > 0;
                response.LegacyWebDavRecordCount = inventory.WebDavRecordCount;
                return ApiResult.Success(response);
            }
            return ApiResult.Fail("不支持的存储类型");
        }
    }
}