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2026-07-24 12:42:51 +08:00
commit 67905dfa16
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+using Jiaowu.Api.Domain.Academic;
+using Jiaowu.Api.Domain.Identity;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.EntityFrameworkCore;
+
+namespace Jiaowu.Api.Infrastructure.Persistence;
+
+public sealed class DatabaseInitializer(
+    AppDbContext db,
+    RoleManager<ApplicationRole> roleManager,
+    UserManager<ApplicationUser> userManager,
+    IConfiguration configuration,
+    IHostEnvironment environment,
+    ILogger<DatabaseInitializer> logger)
+{
+    public async Task InitializeAsync()
+    {
+        if (environment.IsDevelopment())
+        {
+            await db.Database.EnsureCreatedAsync();
+        }
+        else
+        {
+            await db.Database.MigrateAsync();
+        }
+
+        await SeedRolesAsync();
+        await SeedAdministratorAsync();
+
+        if (environment.IsDevelopment())
+        {
+            await SeedDevelopmentDataAsync();
+        }
+    }
+
+    private async Task SeedRolesAsync()
+    {
+        var roleDefinitions = new Dictionary<string, (string Description, DataScope Scope)>
+        {
+            [SystemRoles.SuperAdmin] = ("系统配置与全部数据管理", DataScope.All),
+            [SystemRoles.AcademicAdmin] = ("校级教务管理", DataScope.All),
+            [SystemRoles.CollegeAdmin] = ("院系教务管理", DataScope.College),
+            [SystemRoles.Teacher] = ("教师教学工作台", DataScope.Self),
+            [SystemRoles.Counselor] = ("辅导员与班级管理", DataScope.Class),
+            [SystemRoles.Student] = ("学生自助服务", DataScope.Self),
+            [SystemRoles.Leader] = ("校级统计查看", DataScope.All)
+        };
+
+        foreach (var (name, definition) in roleDefinitions)
+        {
+            if (await roleManager.RoleExistsAsync(name))
+            {
+                continue;
+            }
+
+            var result = await roleManager.CreateAsync(new ApplicationRole
+            {
+                Name = name,
+                Description = definition.Description,
+                DataScope = definition.Scope
+            });
+
+            EnsureSucceeded(result, $"创建角色 {name}");
+        }
+    }
+
+    private async Task SeedAdministratorAsync()
+    {
+        var userName = configuration["SeedAdmin:UserName"];
+        var password = configuration["SeedAdmin:Password"];
+        if (string.IsNullOrWhiteSpace(userName) || string.IsNullOrWhiteSpace(password))
+        {
+            if (!environment.IsDevelopment())
+            {
+                logger.LogWarning("未配置 SeedAdmin，生产环境不会创建默认管理员。");
+            }
+
+            return;
+        }
+
+        var user = await userManager.FindByNameAsync(userName);
+        if (user is null)
+        {
+            user = new ApplicationUser
+            {
+                UserName = userName,
+                DisplayName = configuration["SeedAdmin:DisplayName"] ?? "系统管理员",
+                LockoutEnabled = true,
+                IsEnabled = true
+            };
+
+            EnsureSucceeded(await userManager.CreateAsync(user, password), "创建初始管理员");
+        }
+
+        if (!user.LockoutEnabled)
+        {
+            user.LockoutEnabled = true;
+            EnsureSucceeded(await userManager.UpdateAsync(user), "启用管理员登录保护");
+        }
+
+        if (!await userManager.IsInRoleAsync(user, SystemRoles.SuperAdmin))
+        {
+            EnsureSucceeded(
+                await userManager.AddToRoleAsync(user, SystemRoles.SuperAdmin),
+                "授予超级管理员角色");
+        }
+    }
+
+    private async Task SeedDevelopmentDataAsync()
+    {
+        if (await db.Campuses.AnyAsync())
+        {
+            return;
+        }
+
+        var campus = new Campus
+        {
+            Code = "MAIN",
+            Name = "主校区",
+            Address = "大学路 1 号"
+        };
+        var college = new College
+        {
+            Code = "CS",
+            Name = "计算机学院",
+            ShortName = "计算机学院",
+            CampusId = campus.Id
+        };
+        var major = new Major
+        {
+            Code = "080901",
+            Name = "计算机科学与技术",
+            CollegeId = college.Id,
+            DegreeType = "工学学士",
+            SchoolingYears = 4
+        };
+        var building = new Building
+        {
+            Code = "J1",
+            Name = "第一教学楼",
+            CampusId = campus.Id
+        };
+
+        db.AddRange(
+            campus,
+            college,
+            major,
+            new AdministrativeClass
+            {
+                Code = "CS2026-01",
+                Name = "计科 2026-1 班",
+                MajorId = major.Id,
+                Grade = 2026,
+                CounselorName = "陈老师"
+            },
+            building,
+            new Classroom
+            {
+                Code = "J1-201",
+                Name = "J1-201",
+                BuildingId = building.Id,
+                Capacity = 60,
+                RoomType = "多媒体教室",
+                Equipment = "投影、扩声、录播"
+            },
+            new AcademicTerm
+            {
+                Code = "2026-2027-1",
+                Name = "2026—2027 学年第一学期",
+                AcademicYear = "2026-2027",
+                Season = TermSeason.Autumn,
+                StartDate = new DateOnly(2026, 9, 7),
+                EndDate = new DateOnly(2027, 1, 17),
+                IsCurrent = true
+            });
+
+        await db.SaveChangesAsync();
+    }
+
+    private static void EnsureSucceeded(IdentityResult result, string action)
+    {
+        if (result.Succeeded)
+        {
+            return;
+        }
+
+        throw new InvalidOperationException(
+            $"{action}失败：{string.Join("；", result.Errors.Select(x => x.Description))}");
+    }
+}