using FateMaster.API.Data;
using FateMaster.API.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace FateMaster.API.Controllers;

[ApiController]
[Route("api/admin/[controller]")]
public class RecordsController : ControllerBase
{
    private readonly ApplicationDbContext _context;

    public RecordsController(ApplicationDbContext context)
    {
        _context = context;
    }

    /// <summary>
    /// 获取卜卦记录列表
    /// </summary>
    [HttpGet]
    public async Task<ActionResult> GetRecords(
        [FromQuery] int page = 1,
        [FromQuery] int pageSize = 20,
        [FromQuery] string? type = null,
        [FromQuery] string? paymentStatus = null)
    {
        var query = _context.DivinationRecords.AsQueryable();

        if (!string.IsNullOrEmpty(type))
        {
            query = query.Where(r => r.Type == type);
        }

        if (!string.IsNullOrEmpty(paymentStatus))
        {
            query = query.Where(r => r.PaymentStatus == paymentStatus);
        }

        var total = await query.CountAsync();
        var records = await query
            .OrderByDescending(r => r.CreatedAt)
            .Skip((page - 1) * pageSize)
            .Take(pageSize)
            .ToListAsync();

        return Ok(new
        {
            total,
            page,
            pageSize,
            data = records
        });
    }

    /// <summary>
    /// 获取统计数据
    /// </summary>
    [HttpGet("statistics")]
    public async Task<ActionResult> GetStatistics()
    {
        var total = await _context.DivinationRecords.CountAsync();
        var paidCount = await _context.DivinationRecords
            .CountAsync(r => r.PaymentStatus == "paid");
        var totalRevenue = await _context.DivinationRecords
            .Where(r => r.PaymentStatus == "paid")
            .SumAsync(r => r.Amount);

        var typeStats = await _context.DivinationRecords
            .GroupBy(r => r.Type)
            .Select(g => new
            {
                Type = g.Key,
                Count = g.Count()
            })
            .ToListAsync();

        return Ok(new
        {
            total,
            paidCount,
            totalRevenue,
            typeStats
        });
    }
}