using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;
using Tiku.Domain.Catalog;
using Tiku.Domain.Commerce;
using Tiku.Domain.Identity;
using Tiku.Domain.Tenancy;

namespace Tiku.Infrastructure.Persistence.Configurations;

internal sealed class ProductConfiguration : IEntityTypeConfiguration<Product>
{
    public void Configure(EntityTypeBuilder<Product> builder)
    {
        builder.ConfigureTenantEntity("products");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.Title).HasMaxLength(300);
        builder.Property(entity => entity.LegacyPriceText).HasMaxLength(100);
        builder.Property(entity => entity.Link).HasMaxLength(2048);
        builder.Property(entity => entity.Type).HasSnakeCaseEnum();
        builder.Property(entity => entity.Tags).IsJson("[]");
        builder.Property(entity => entity.Cover).HasMaxLength(2048);
        builder.Property(entity => entity.PreviewIframe).HasMaxLength(2048);
        builder.Property(entity => entity.DetailImages).IsJson("[]");
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.RegionId, entity.Type, entity.SortOrder });
        builder.HasOne<Region>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.RegionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
    }
}

internal sealed class SvipPlanConfiguration : IEntityTypeConfiguration<SvipPlan>
{
    public void Configure(EntityTypeBuilder<SvipPlan> builder)
    {
        builder.ConfigureTenantEntity("svip_plans");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.Name).HasMaxLength(200);
        builder.Property(entity => entity.PerDayLabel).HasMaxLength(100);
        builder.Property(entity => entity.Badge).HasMaxLength(100);
        builder.Property(entity => entity.VpProductId).HasMaxLength(100);
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.RegionId, entity.IsActive, entity.SortOrder });
        builder.ToTable(table =>
        {
            table.HasCheckConstraint("ck_svip_plans_price", "price_cents >= 0 and (original_price_cents is null or original_price_cents >= 0)");
            table.HasCheckConstraint("ck_svip_plans_days", "days >= 0");
        });
        builder.HasOne<Region>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.RegionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
    }
}

internal sealed class OrderConfiguration : IEntityTypeConfiguration<Order>
{
    public void Configure(EntityTypeBuilder<Order> builder)
    {
        builder.ConfigureTenantEntity("orders");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.LegacyUserId).HasMaxLength(64);
        builder.Property(entity => entity.LegacyPlanId).HasMaxLength(64);
        builder.Property(entity => entity.LegacyRegionId).HasMaxLength(64);
        builder.Property(entity => entity.OrderNo).HasMaxLength(100);
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.Property(entity => entity.ProductType).HasMaxLength(100);
        builder.Property(entity => entity.ProductName).HasMaxLength(300);
        builder.Property(entity => entity.PayMethod).HasMaxLength(50);
        builder.Property(entity => entity.PayProvider).HasMaxLength(50);
        builder.Property(entity => entity.TradeNo).HasMaxLength(200);
        builder.Property(entity => entity.RawPayload).IsJson("{}");
        builder.HasIndex(entity => new { entity.TenantId, entity.OrderNo }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.UserId, entity.CreatedAt });
        builder.ToTable(table => table.HasCheckConstraint("ck_orders_amount", "amount_cents >= 0"));
        builder.HasOne<User>().WithMany().HasForeignKey(entity => entity.UserId).OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<SvipPlan>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.PlanId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
        builder.HasOne<Region>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.RegionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
    }
}

internal sealed class OrderItemConfiguration : IEntityTypeConfiguration<OrderItem>
{
    public void Configure(EntityTypeBuilder<OrderItem> builder)
    {
        builder.ConfigureTenantEntity("order_items");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.ItemType).HasMaxLength(100);
        builder.Property(entity => entity.Name).HasMaxLength(300);
        builder.Property(entity => entity.Metadata).IsJson("{}");
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.OrderId });
        builder.ToTable(table =>
        {
            table.HasCheckConstraint("ck_order_items_quantity", "quantity > 0");
            table.HasCheckConstraint("ck_order_items_amounts", "unit_amount_cents >= 0 and total_amount_cents >= 0");
        });
        builder.HasOne<Order>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.OrderId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Cascade);
    }
}

internal sealed class PaymentConfiguration : IEntityTypeConfiguration<Payment>
{
    public void Configure(EntityTypeBuilder<Payment> builder)
    {
        builder.ConfigureTenantEntity("payments");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.LegacyOrderId).HasMaxLength(64);
        builder.Property(entity => entity.Provider).HasMaxLength(50);
        builder.Property(entity => entity.Method).HasMaxLength(50);
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.Property(entity => entity.ProviderTradeNo).HasMaxLength(200);
        builder.Property(entity => entity.RawPayload).IsJson("{}");
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.OrderId, entity.UpdatedAt });
        builder.HasIndex(entity => new { entity.Provider, entity.ProviderTradeNo })
            .IsUnique()
            .HasFilter("provider_trade_no is not null");
        builder.ToTable(table => table.HasCheckConstraint("ck_payments_amount", "amount_cents >= 0"));
        builder.HasOne<Order>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.OrderId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Cascade);
    }
}

internal sealed class PaymentEventConfiguration : IEntityTypeConfiguration<PaymentEvent>
{
    public void Configure(EntityTypeBuilder<PaymentEvent> builder)
    {
        builder.ConfigureEntity("payment_events");
        builder.HasAlternateKey(entity => new { entity.TenantId, entity.Id });
        builder.Property(entity => entity.Provider).HasMaxLength(50);
        builder.Property(entity => entity.EventType).HasMaxLength(100);
        builder.Property(entity => entity.EventId).HasMaxLength(200);
        builder.Property(entity => entity.Payload).IsJson("{}");
        builder.Property(entity => entity.CreatedAt).HasDefaultValueSql("now()");
        builder.HasIndex(entity => new { entity.Provider, entity.EventId }).IsUnique();
        builder.HasOne<Tenant>().WithMany().HasForeignKey(entity => entity.TenantId).OnDelete(DeleteBehavior.Cascade);
        builder.HasOne<Payment>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.PaymentId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
    }
}

internal sealed class EntitlementConfiguration : IEntityTypeConfiguration<Entitlement>
{
    public void Configure(EntityTypeBuilder<Entitlement> builder)
    {
        builder.ConfigureEntity("entitlements");
        builder.HasAlternateKey(entity => new { entity.TenantId, entity.Id });
        builder.Property(entity => entity.EntitlementType).HasMaxLength(50);
        builder.Property(entity => entity.ScopeType).HasSnakeCaseEnum();
        builder.Property(entity => entity.SourceType).HasMaxLength(100);
        builder.Property(entity => entity.LegacySourceId).HasMaxLength(64);
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.Property(entity => entity.Metadata).IsJson("{}");
        builder.Property(entity => entity.StartsAt).HasDefaultValueSql("now()");
        builder.Property(entity => entity.CreatedAt).HasDefaultValueSql("now()");
        builder.HasIndex(entity => new { entity.TenantId, entity.UserId, entity.Status, entity.ExpiresAt });
        builder.HasOne<Tenant>().WithMany().HasForeignKey(entity => entity.TenantId).OnDelete(DeleteBehavior.Cascade);
        builder.HasOne<User>().WithMany().HasForeignKey(entity => entity.UserId).OnDelete(DeleteBehavior.Cascade);
    }
}

internal sealed class CodeBatchConfiguration : IEntityTypeConfiguration<CodeBatch>
{
    public void Configure(EntityTypeBuilder<CodeBatch> builder)
    {
        builder.ConfigureTenantEntity("code_batches");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.Name).HasMaxLength(200);
        builder.Property(entity => entity.SaleType).HasMaxLength(50);
        builder.Property(entity => entity.Channel).HasMaxLength(100);
        builder.Property(entity => entity.CampaignName).HasMaxLength(200);
        builder.Property(entity => entity.LegacyRegionId).HasMaxLength(64);
        builder.Property(entity => entity.CommissionRate).HasPrecision(6, 4);
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.ToTable(table =>
        {
            table.HasCheckConstraint("ck_code_batches_counts", "total_count >= 0");
            table.HasCheckConstraint("ck_code_batches_amounts", "default_unit_price_cents >= 0 and cost_price_cents >= 0");
        });
    }
}

internal sealed class ActivationCodeConfiguration : IEntityTypeConfiguration<ActivationCode>
{
    public void Configure(EntityTypeBuilder<ActivationCode> builder)
    {
        builder.ConfigureTenantEntity("activation_codes");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.Code).HasColumnType("citext").HasMaxLength(100);
        builder.Property(entity => entity.SaleType).HasMaxLength(50);
        builder.Property(entity => entity.SoldTo).HasMaxLength(200);
        builder.Property(entity => entity.CouponCode).HasMaxLength(100);
        builder.HasIndex(entity => new { entity.TenantId, entity.Code }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasOne<CodeBatch>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.BatchId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<User>().WithMany().HasForeignKey(entity => entity.UsedBy).OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<User>().WithMany().HasForeignKey(entity => entity.AgentUserId).OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<Region>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.UsedRegionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<CouponRedemption>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.CouponRedemptionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
    }
}

internal sealed class CouponConfiguration : IEntityTypeConfiguration<Coupon>
{
    public void Configure(EntityTypeBuilder<Coupon> builder)
    {
        builder.ConfigureTenantEntity("coupons");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.Code).HasColumnType("citext").HasMaxLength(100);
        builder.Property(entity => entity.DiscountType).HasNullableSnakeCaseEnum();
        builder.Property(entity => entity.DiscountValue).HasPrecision(10, 2);
        builder.Property(entity => entity.Source).HasMaxLength(50);
        builder.HasIndex(entity => new { entity.TenantId, entity.Code }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasOne<SvipPlan>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.PlanId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
    }
}

internal sealed class CouponRedemptionConfiguration : IEntityTypeConfiguration<CouponRedemption>
{
    public void Configure(EntityTypeBuilder<CouponRedemption> builder)
    {
        builder.ConfigureTenantEntity("coupon_redemptions");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.LegacyId).HasMaxLength(64);
        builder.Property(entity => entity.CouponCode).HasMaxLength(100);
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.Property(entity => entity.Source).HasMaxLength(50);
        builder.HasIndex(entity => new { entity.TenantId, entity.LegacyId }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.UserId, entity.CouponId })
            .IsUnique()
            .HasFilter("coupon_id is not null");
        builder.HasIndex(entity => new { entity.TenantId, entity.OrderId, entity.UserId })
            .HasFilter("order_id is not null");
        builder.HasOne<Coupon>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.CouponId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<User>().WithMany().HasForeignKey(entity => entity.UserId).OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<SvipPlan>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.PlanId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<Order>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.OrderId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
        builder.HasOne<Region>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, entity.RegionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.SetNull);
    }
}

internal sealed class TenantPaymentAccountConfiguration : IEntityTypeConfiguration<TenantPaymentAccount>
{
    public void Configure(EntityTypeBuilder<TenantPaymentAccount> builder)
    {
        builder.ConfigureTenantEntity("tenant_payment_accounts");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.Provider).HasMaxLength(50);
        builder.Property(entity => entity.Mode).HasSnakeCaseEnum();
        builder.Property(entity => entity.DisplayName).HasMaxLength(200);
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.Property(entity => entity.ConfigPublic).IsJson("{}");
        builder.HasIndex(entity => new { entity.TenantId, entity.Provider }).IsUnique();
    }
}

internal sealed class TenantSubscriptionConfiguration : IEntityTypeConfiguration<TenantSubscription>
{
    public void Configure(EntityTypeBuilder<TenantSubscription> builder)
    {
        builder.ConfigureTenantEntity("tenant_subscriptions");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.PlanCode).HasMaxLength(100);
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.Property(entity => entity.BillingCycle).HasMaxLength(50);
        builder.Property(entity => entity.Metadata).IsJson("{}");
        builder.HasIndex(entity => new { entity.TenantId, entity.Status, entity.ExpiresAt });
    }
}

internal sealed class TenantUsageRecordConfiguration : IEntityTypeConfiguration<TenantUsageRecord>
{
    public void Configure(EntityTypeBuilder<TenantUsageRecord> builder)
    {
        builder.ConfigureEntity("tenant_usage_records");
        builder.HasAlternateKey(entity => new { entity.TenantId, entity.Id });
        builder.Property(entity => entity.MetricKey).HasMaxLength(100);
        builder.Property(entity => entity.MetricValue).HasPrecision(18, 4);
        builder.Property(entity => entity.Metadata).IsJson("{}");
        builder.Property(entity => entity.CreatedAt).HasDefaultValueSql("now()");
        builder.HasIndex(entity => new { entity.TenantId, entity.MetricKey, entity.PeriodStart, entity.PeriodEnd });
        builder.HasOne<Tenant>().WithMany().HasForeignKey(entity => entity.TenantId).OnDelete(DeleteBehavior.Cascade);
    }
}