using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using SqlSugar;
using RainOpsMini.Helpers;
using RainOpsMini.Models;
using RainOpsMini.Helpers.SquadGameLog;
using System.Collections.Generic;
using System.Linq;
using System;
using RainOpsMini.Models;

namespace RainOpsMini.Apis
{
    public static class LogApi
    {
        public static void MapLogApis(this IEndpointRouteBuilder app)
        {
            // API: 获取游戏匹配日志
            // 用于日志查询页面，支持分页和搜索
            app.MapGet("/api/logs/game-match", (string? type, string? search, int? page, int? pageSize, HttpContext ctx) =>
            {
                if (!ctx.User.HasClaim("Permission", "logs") && !ctx.User.HasClaim("Permission", "all") && ctx.User.FindFirst("IsSuperAdmin")?.Value != "true") return Results.Unauthorized();

                int p = page ?? 1;
                int ps = pageSize ?? 20;
                if (ps > 100) ps = 100; // 限制最大页大小

                int total;
                var logs = LogStorage.Instance.GetLogs(type, search, p, ps, out total);

                return Results.Ok(new
                {
                    total = total,
                    page = p,
                    pageSize = ps,
                    items = logs
                });
            });

            // API: 获取日志统计信息
            // 用于仪表盘展示各类日志的数量
            app.MapGet("/api/logs/stats", (HttpContext ctx) =>
            {
                if (!ctx.User.HasClaim("Permission", "analytics") && !ctx.User.HasClaim("Permission", "all") && ctx.User.FindFirst("IsSuperAdmin")?.Value != "true") return Results.Unauthorized();
                var stats = LogStorage.Instance.GetLogStats();
                return Results.Json(stats);
            });

            // API: 获取用户登录统计
            // 用于分析用户活跃度
            app.MapGet("/api/analytics/user-stats", (HttpContext ctx) =>
            {
                if (!ctx.User.HasClaim("Permission", "analytics") && !ctx.User.HasClaim("Permission", "all") && ctx.User.FindFirst("IsSuperAdmin")?.Value != "true") return Results.Unauthorized();

                using (var db = DbHelper.GetInstance())
                {
                    var stats = db.Queryable<RainOpsMini.Models.UserLoginLog>()
                        .GroupBy(x => x.Username)
                        .Select(x => new
                        {
                            Username = x.Username,
                            Count = SqlFunc.AggregateCount(x.Id),
                            LastLogin = SqlFunc.AggregateMax(x.LoginTime)
                        })
                        .ToList();

                    // 按登录次数降序排序
                    var tableData = stats.OrderByDescending(x => x.Count).ToList();

                    return Results.Ok(new { tableData });
                }
            });

            // API: 获取对局历史列表
            // 分页查询历史对局记录
            app.MapGet("/api/matches", (int? page, int? pageSize, HttpContext ctx) =>
            {
                if (!ctx.User.HasClaim("Permission", "logs") && !ctx.User.HasClaim("Permission", "all") && ctx.User.FindFirst("IsSuperAdmin")?.Value != "true") return Results.Unauthorized();

                int p = page ?? 1;
                int ps = pageSize ?? 20;

                try
                {
                    using (var db = DbHelper.GetInstance())
                    {
                        var total = 0;
                        var query = db.Queryable<MatchPlayerStats>()
                            .GroupBy(x => new { x.MatchId, x.MatchDate, x.MapName })
                            .Select(x => new
                            {
                                x.MatchId,
                                x.MatchDate,
                                x.MapName,
                                PlayerCount = SqlFunc.AggregateCount(x.Id)
                            })
                            .MergeTable(); // Merge result for pagination

                        var list = query.OrderByDescending(x => x.MatchDate)
                                        .ToPageList(p, ps, ref total);

                        return Results.Ok(new { total, page = p, pageSize = ps, items = list });
                    }
                }
                catch (Exception ex)
                {
                    return Results.BadRequest(new { error = ex.Message });
                }
            });

            // API: 获取单场对局详情
            // 根据 MatchID 查询该场对局的所有玩家数据
            app.MapGet("/api/matches/{matchId}", (string matchId, HttpContext ctx) =>
            {
                if (!ctx.User.HasClaim("Permission", "logs") && !ctx.User.HasClaim("Permission", "all") && ctx.User.FindFirst("IsSuperAdmin")?.Value != "true") return Results.Unauthorized();

                if (string.IsNullOrEmpty(matchId)) return Results.BadRequest();

                try
                {
                    using (var db = DbHelper.GetInstance())
                    {
                        var stats = db.Queryable<MatchPlayerStats>()
                            .Where(x => x.MatchId == matchId)
                            .OrderByDescending(x => x.Kills) // Order by Kills by default
                            .ToList();

                        return Results.Ok(stats);
                    }
                }
                catch (Exception ex)
                {
                    return Results.BadRequest(new { error = ex.Message });
                }
            });

            // API: 玩家活跃度分析
            app.MapGet("/api/analytics/players", (string? start, string? end, int? days, HttpContext ctx) =>
            {
                if (!ctx.User.HasClaim("Permission", "analytics") && !ctx.User.HasClaim("Permission", "all") && ctx.User.FindFirst("IsSuperAdmin")?.Value != "true") return Results.Unauthorized();

                DateTime startDate;
                DateTime endDate = DateTime.Now;

                if (!string.IsNullOrEmpty(start) && DateTime.TryParse(start, out var s))
                {
                    startDate = s;
                }
                else
                {
                    int d = days ?? 7;
                    startDate = DateTime.Now.AddDays(-d);
                }

                if (!string.IsNullOrEmpty(end) && DateTime.TryParse(end, out var e))
                {
                    endDate = e.AddDays(1); // Include the end date
                }

                using (var db = DbHelper.GetInstance())
                {
                    var data = db.Queryable<ServerInfoLog>()
                                 .Where(x => x.Timestamp >= startDate && x.Timestamp < endDate)
                                 .OrderBy(x => x.Timestamp)
                                 .Select(x => new { x.Timestamp, x.PlayerCount, x.MapName })
                                 .ToList();
                    return Results.Json(data);
                }
            });

            // API: 地图热度分析
            app.MapGet("/api/analytics/maps", (string? start, string? end, int? days, HttpContext ctx) =>
            {
                if (!ctx.User.HasClaim("Permission", "analytics") && !ctx.User.HasClaim("Permission", "all") && ctx.User.FindFirst("IsSuperAdmin")?.Value != "true") return Results.Unauthorized();

                DateTime startDate;
                DateTime endDate = DateTime.Now;

                if (!string.IsNullOrEmpty(start) && DateTime.TryParse(start, out var s))
                {
                    startDate = s;
                }
                else
                {
                    int d = days ?? 7;
                    startDate = DateTime.Now.AddDays(-d);
                }

                if (!string.IsNullOrEmpty(end) && DateTime.TryParse(end, out var e))
                {
                    endDate = e.AddDays(1); // Include the end date
                }

                using (var db = DbHelper.GetInstance())
                {
                    var data = db.Queryable<ServerInfoLog>()
                                 .Where(x => x.Timestamp >= startDate && x.Timestamp < endDate)
                                 .GroupBy(x => x.MapName)
                                 .Select(x => new { MapName = x.MapName, Count = SqlFunc.AggregateCount(x.Id) })
                                 .ToList()
                                 .OrderByDescending(x => x.Count)
                                 .ToList();
                    return Results.Json(data);
                }
            });

            // API: 获取 Tickrate 历史
            // 查询服务器 Tickrate、玩家数量等历史数据
            app.MapGet("/api/analytics/tickrate", (string? start, string? end, int? days, HttpContext ctx) =>
            {
                if (ctx.User.Identity?.IsAuthenticated != true) return Results.Unauthorized();

                DateTime startTime;
                DateTime endTime = DateTime.Now;

                if (!string.IsNullOrEmpty(start) && DateTime.TryParse(start, out var s))
                {
                    startTime = s;
                }
                else
                {
                    int queryDays = days ?? 3;
                    startTime = DateTime.Now.AddDays(-queryDays);
                }

                if (!string.IsNullOrEmpty(end) && DateTime.TryParse(end, out var e))
                {
                    endTime = e.AddDays(1); // Include the end date
                }

                using (var db = DbHelper.GetInstance())
                {
                    var data = db.Queryable<Log_Tick>()
                    .Where(x => x.LogTime >= startTime && x.LogTime < endTime)
                    .OrderBy(x => x.LogTime)
                    .Select(x => new
                    {
                        LogTime = x.LogTime,
                        TickRate = x.TickRate,
                        PlayerCount = x.PlayerCount,
                        MatchTime = x.MatchTime,
                        MapName = x.MapName
                    })
                    .ToList();
                    return Results.Ok(data);
                }
            });
        }
    }
}