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

namespace CampusErrand.Endpoints;

public static class ServiceEntryEndpoints
{
    public static void MapServiceEntryEndpoints(this WebApplication app)
    {
        // 前端获取服务入口列表（仅启用+按排序权重排列）
        app.MapGet("/api/service-entries", async (AppDbContext db) =>
        {
            var entries = await db.ServiceEntries
                .Where(e => e.IsEnabled)
                .OrderBy(e => e.SortOrder)
                .Select(e => new ServiceEntryResponse
                {
                    Id = e.Id,
                    Name = e.Name,
                    IconUrl = e.IconUrl,
                    PagePath = e.PagePath,
                    SortOrder = e.SortOrder,
                    IsEnabled = e.IsEnabled
                })
                .ToListAsync();
            return Results.Ok(entries);
        });

        // 管理端获取全部服务入口列表
        app.MapGet("/api/admin/service-entries", async (AppDbContext db) =>
        {
            var entries = await db.ServiceEntries
                .OrderBy(e => e.SortOrder)
                .Select(e => new ServiceEntryResponse
                {
                    Id = e.Id,
                    Name = e.Name,
                    IconUrl = e.IconUrl,
                    PagePath = e.PagePath,
                    SortOrder = e.SortOrder,
                    IsEnabled = e.IsEnabled
                })
                .ToListAsync();
            return Results.Ok(entries);
        }).RequireAuthorization("AdminOnly");

        // 更新服务入口
        app.MapPut("/api/admin/service-entries/{id}", async (int id, ServiceEntryUpdateRequest request, AppDbContext db) =>
        {
            var entry = await db.ServiceEntries.FindAsync(id);
            if (entry == null)
            {
                return Results.NotFound(new { code = 404, message = "服务入口不存在" });
            }

            if (string.IsNullOrWhiteSpace(request.IconUrl))
            {
                return Results.BadRequest(new { code = 400, message = "校验失败", errors = new[] { new { field = "iconUrl", message = "图标图片地址不能为空" } } });
            }

            entry.IconUrl = request.IconUrl;
            entry.SortOrder = request.SortOrder;
            entry.IsEnabled = request.IsEnabled;

            await db.SaveChangesAsync();

            return Results.Ok(new ServiceEntryResponse
            {
                Id = entry.Id,
                Name = entry.Name,
                IconUrl = entry.IconUrl,
                PagePath = entry.PagePath,
                SortOrder = entry.SortOrder,
                IsEnabled = entry.IsEnabled
            });
        }).RequireAuthorization("AdminOnly");

        // 创建服务入口
        app.MapPost("/api/admin/service-entries", async (ServiceEntryCreateRequest request, AppDbContext db) =>
        {
            if (string.IsNullOrWhiteSpace(request.Name))
                return Results.BadRequest(new { code = 400, message = "服务名称不能为空" });
            if (string.IsNullOrWhiteSpace(request.IconUrl))
                return Results.BadRequest(new { code = 400, message = "背景图片不能为空" });
            if (string.IsNullOrWhiteSpace(request.PagePath))
                return Results.BadRequest(new { code = 400, message = "跳转路径不能为空" });

            var entry = new ServiceEntry
            {
                Name = request.Name,
                IconUrl = request.IconUrl,
                PagePath = request.PagePath,
                SortOrder = request.SortOrder,
                IsEnabled = request.IsEnabled
            };

            db.ServiceEntries.Add(entry);
            await db.SaveChangesAsync();

            return Results.Created($"/api/admin/service-entries/{entry.Id}", new ServiceEntryResponse
            {
                Id = entry.Id,
                Name = entry.Name,
                IconUrl = entry.IconUrl,
                PagePath = entry.PagePath,
                SortOrder = entry.SortOrder,
                IsEnabled = entry.IsEnabled
            });
        }).RequireAuthorization("AdminOnly");

        // 删除服务入口
        app.MapDelete("/api/admin/service-entries/{id}", async (int id, AppDbContext db) =>
        {
            var entry = await db.ServiceEntries.FindAsync(id);
            if (entry == null)
                return Results.NotFound(new { code = 404, message = "服务入口不存在" });

            db.ServiceEntries.Remove(entry);
            await db.SaveChangesAsync();
            return Results.NoContent();
        }).RequireAuthorization("AdminOnly");
    }
}