using Microsoft.AspNetCore.Mvc;
using WenChuanyi.Api.Dtos;
using WenChuanyi.Api.Models;
using WenChuanyi.Api.Services;

namespace WenChuanyi.Api.Controllers;

/// <summary>发送者管理：凭管理码查看文件列表 / 删除文件</summary>
[ApiController]
[Route("api/admin")]
public class AdminController : ControllerBase
{
    private readonly IFreeSql _fsql;
    private readonly OssStorageService _oss;
    private readonly ILogger<AdminController> _logger;

    public AdminController(IFreeSql fsql, OssStorageService oss, ILogger<AdminController> logger)
    {
        _fsql = fsql;
        _oss = oss;
        _logger = logger;
    }

    /// <summary>管理码查询文件列表（含上传 IP）</summary>
    [HttpGet("files/{adminCode}")]
    public async Task<IActionResult> List(string adminCode)
    {
        if (string.IsNullOrEmpty(adminCode) || adminCode.Length != 8)
        {
            return BadRequest(new { message = "管理码无效" });
        }
        var list = await _fsql.Select<FileItem>()
            .Where(f => f.AdminCode == adminCode)
            .OrderByDescending(f => f.CreatedAt)
            .ToListAsync();
        return Ok(list.Select(ToDto));
    }

    /// <summary>删除指定文件（body 传 id 或取件码，校验管理码）</summary>
    [HttpDelete("files/{adminCode}")]
    public async Task<IActionResult> Delete(string adminCode, [FromBody] DeleteRequest? req)
    {
        if (string.IsNullOrEmpty(adminCode) || adminCode.Length != 8)
        {
            return BadRequest(new { message = "管理码无效" });
        }
        if (req == null || (req.Id == null && string.IsNullOrEmpty(req.PickCode)))
        {
            return BadRequest(new { message = "请提供要删除的文件 Id 或取件码" });
        }

        FileItem? item;
        if (req.Id != null)
        {
            item = await _fsql.Select<FileItem>()
                .Where(f => f.Id == req.Id.Value && f.AdminCode == adminCode).FirstAsync();
        }
        else
        {
            item = await _fsql.Select<FileItem>()
                .Where(f => f.PickCode == req.PickCode && f.AdminCode == adminCode).FirstAsync();
        }
        if (item == null)
        {
            return NotFound(new { message = "文件不存在或管理码不匹配" });
        }

        var deleted = await _fsql.Delete<FileItem>().Where(f => f.Id == item.Id).ExecuteAffrowsAsync() > 0;
        if (deleted)
        {
            _oss.TryDeleteObject(item.ObjectKey);
        }
        return Ok(new { message = "已删除" });
    }

    private static FileInfoDto ToDto(FileItem f) => new()
    {
        Id = f.Id,
        PickCode = f.PickCode,
        FileType = f.FileType,
        HasPassword = f.FileType == "private",
        OriginalName = f.OriginalName,
        Size = f.Size,
        MimeType = f.MimeType,
        DownloadCount = f.DownloadCount,
        UploadIp = f.UploadIp,
        IsPermanent = f.IsPermanent,
        ExpiresAt = f.ExpiresAt,
        CreatedAt = f.CreatedAt,
        ExpireText = FileRules.ExpireText(f)
    };
}