using CampusErrand.Data;
using CampusErrand.Models;
using CampusErrand.Models.Dtos;
using Microsoft.EntityFrameworkCore;

namespace CampusErrand.Endpoints;

public static class RunnerEndpoints
{
    public static void MapRunnerEndpoints(this WebApplication app)
    {
        // 提交跑腿认证申请
        app.MapPost("/api/runner/certification", async (CertificationRequest request, HttpContext httpContext, AppDbContext db) =>
        {
            var userIdClaim = httpContext.User.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier);
            if (userIdClaim == null) return Results.Unauthorized();
            var userId = int.Parse(userIdClaim.Value);

            // 校验
            var errors = new List<object>();
            if (string.IsNullOrWhiteSpace(request.RealName))
                errors.Add(new { field = "realName", message = "姓名不能为空" });
            if (string.IsNullOrWhiteSpace(request.Phone))
                errors.Add(new { field = "phone", message = "手机号不能为空" });
            if (errors.Count > 0)
                return Results.BadRequest(new { code = 400, message = "校验失败", errors });

            // 检查是否已有待审核或已通过的认证
            var existing = await db.RunnerCertifications
                .Where(c => c.UserId == userId && (c.Status == CertificationStatus.Pending || c.Status == CertificationStatus.Approved))
                .FirstOrDefaultAsync();

            if (existing != null)
            {
                if (existing.Status == CertificationStatus.Approved)
                    return Results.BadRequest(new { code = 400, message = "您已通过跑腿认证" });
                return Results.BadRequest(new { code = 400, message = "平台审核中" });
            }

            var certification = new RunnerCertification
            {
                UserId = userId,
                RealName = request.RealName,
                Phone = request.Phone,
                Status = CertificationStatus.Pending,
                CreatedAt = DateTime.UtcNow
            };

            db.RunnerCertifications.Add(certification);
            await db.SaveChangesAsync();

            return Results.Created($"/api/runner/certification", new CertificationResponse
            {
                Id = certification.Id,
                UserId = certification.UserId,
                RealName = certification.RealName,
                Phone = certification.Phone,
                Status = certification.Status.ToString(),
                CreatedAt = certification.CreatedAt,
                ReviewedAt = certification.ReviewedAt
            });
        }).RequireAuthorization();

        // 查询跑腿认证状态
        app.MapGet("/api/runner/certification", async (HttpContext httpContext, AppDbContext db) =>
        {
            var userIdClaim = httpContext.User.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier);
            if (userIdClaim == null) return Results.Unauthorized();
            var userId = int.Parse(userIdClaim.Value);

            // 返回最新的认证记录
            var certification = await db.RunnerCertifications
                .Where(c => c.UserId == userId)
                .OrderByDescending(c => c.CreatedAt)
                .FirstOrDefaultAsync();

            if (certification == null)
            {
                return Results.Ok(new { status = "None", message = "未提交认证" });
            }

            return Results.Ok(new CertificationResponse
            {
                Id = certification.Id,
                UserId = certification.UserId,
                RealName = certification.RealName,
                Phone = certification.Phone,
                Status = certification.Status.ToString(),
                CreatedAt = certification.CreatedAt,
                ReviewedAt = certification.ReviewedAt
            });
        }).RequireAuthorization();
    }
}