using Jiaowu.Api.Infrastructure.Persistence;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;

namespace Jiaowu.Api.Tests;

public sealed class MySqlMigrationTests
{
    private const string LatestMigration =
        "20260725120917_ProductionSchemaCompletion";

    [Fact]
    public void Production_migration_is_discoverable_and_generates_mysql_sql()
    {
        var options = new DbContextOptionsBuilder<AppDbContext>()
            .UseMySQL(
                "Server=localhost;Database=jiaowu;User=__test__;Password=__not_used__;")
            .Options;
        using var db = new AppDbContext(options);

        Assert.Contains(LatestMigration, db.Database.GetMigrations());

        var script = db.GetService<IMigrator>().GenerateScript(
            fromMigration: "20260725040310_SchedulePublishJobs",
            toMigration: LatestMigration);

        Assert.Contains("CREATE TABLE `GradeItems`", script);
        Assert.Contains("CREATE TABLE `EvaluationSetups`", script);
        Assert.Contains("CREATE TABLE `WarningRules`", script);
        Assert.Contains("SET `ExamDate` = DATE(`StartsAt`)", script);
        Assert.Contains("DEFAULT 1", script);
        Assert.DoesNotContain("0001-01-01", script);
        Assert.DoesNotContain("0000-00-00", script);
    }
}