using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;
using Tiku.Domain.Content;

namespace Tiku.Infrastructure.Persistence.Configurations;

internal sealed class QuestionAssetConfiguration : IEntityTypeConfiguration<QuestionAsset>
{
    public void Configure(EntityTypeBuilder<QuestionAsset> builder)
    {
        builder.ConfigureTenantEntity("question_assets");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.DeliveryFingerprint).HasMaxLength(64);
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.HasIndex(entity => new { entity.TenantId, entity.DeliveryFingerprint }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.FamilyId });
        builder.HasOne<QuestionFamily>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.FamilyId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
        builder.HasOne<QuestionRevision>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, QuestionAssetId = entity.Id, Id = entity.CurrentRevisionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.QuestionAssetId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
    }
}

internal sealed class QuestionRevisionConfiguration : IEntityTypeConfiguration<QuestionRevision>
{
    public void Configure(EntityTypeBuilder<QuestionRevision> builder)
    {
        builder.ConfigureTenantOwned("question_revisions");
        builder.HasAlternateKey(entity => new { entity.TenantId, entity.QuestionAssetId, entity.Id });
        builder.Property(entity => entity.QuestionType).HasMaxLength(50);
        builder.Property(entity => entity.TypeLabel).HasMaxLength(100);
        builder.Property(entity => entity.NormalizedContent).HasColumnType("text");
        builder.Property(entity => entity.Options).IsJson("[]");
        builder.Property(entity => entity.CorrectOptionIndices).IsJson("[]");
        builder.Property(entity => entity.SubQuestions).IsJson("[]");
        builder.Property(entity => entity.CodeLang).HasMaxLength(50);
        builder.Property(entity => entity.DeliveryFingerprint).HasMaxLength(64);
        builder.Property(entity => entity.CreatedAt).HasDefaultValueSql("now()");
        builder.HasIndex(entity => new { entity.TenantId, entity.QuestionAssetId, entity.RevisionNo }).IsUnique();
        builder.HasIndex(entity => new { entity.TenantId, entity.DeliveryFingerprint });
        builder.HasIndex(entity => entity.NormalizedContent).HasMethod("gin")
            .HasOperators("gin_trgm_ops")
            .HasDatabaseName("ix_question_revisions_content_trgm");
        builder.HasOne<QuestionAsset>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.QuestionAssetId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Cascade);
    }
}

internal sealed class QuestionFamilyConfiguration : IEntityTypeConfiguration<QuestionFamily>
{
    public void Configure(EntityTypeBuilder<QuestionFamily> builder)
    {
        builder.ConfigureTenantEntity("question_families");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.Name).HasMaxLength(300);
        builder.Property(entity => entity.Description).HasMaxLength(2000);
    }
}

internal sealed class QuestionPlacementConfiguration : IEntityTypeConfiguration<QuestionPlacement>
{
    public void Configure(EntityTypeBuilder<QuestionPlacement> builder)
    {
        builder.ConfigureTenantEntity("question_placements");
        builder.ConfigureTimestamps();
        builder.Property(entity => entity.Status).HasSnakeCaseEnum();
        builder.HasIndex(entity => new
        {
            entity.TenantId,
            entity.QuestionAssetOwnerTenantId,
            entity.QuestionAssetId,
            entity.CurriculumVersionId,
            entity.CurriculumNodeId,
            entity.AssessmentPolicyVersionId
        }).IsUnique();
        builder.HasOne<QuestionAsset>().WithMany()
            .HasForeignKey(entity => new { TenantId = entity.QuestionAssetOwnerTenantId, Id = entity.QuestionAssetId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
        builder.HasOne<CurriculumVersion>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.CurriculumVersionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
        builder.HasOne<CurriculumNode>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.CurriculumNodeId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
        builder.HasOne<AssessmentPolicyVersion>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.AssessmentPolicyVersionId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
        builder.ToTable(table => table.HasCheckConstraint(
            "ck_question_placements_valid_period", "valid_to is null or valid_from is null or valid_to > valid_from"));
    }
}

internal sealed class QuestionPlacementConceptConfiguration : IEntityTypeConfiguration<QuestionPlacementConcept>
{
    public void Configure(EntityTypeBuilder<QuestionPlacementConcept> builder)
    {
        builder.ConfigureTenantOwned("question_placement_concepts");
        builder.HasIndex(entity => new { entity.TenantId, entity.PlacementId, entity.KnowledgeConceptId }).IsUnique();
        builder.HasOne<QuestionPlacement>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.PlacementId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Cascade);
        builder.HasOne<KnowledgeConcept>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.KnowledgeConceptId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Restrict);
    }
}

internal sealed class QuestionPlacementRuleGroupConfiguration : IEntityTypeConfiguration<QuestionPlacementRuleGroup>
{
    public void Configure(EntityTypeBuilder<QuestionPlacementRuleGroup> builder)
    {
        builder.ConfigureTenantOwned("question_placement_rule_groups");
        builder.HasIndex(entity => new { entity.TenantId, entity.PlacementId, entity.GroupOrder }).IsUnique();
        builder.HasOne<QuestionPlacement>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.PlacementId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Cascade);
    }
}

internal sealed class QuestionPlacementRuleConditionConfiguration :
    IEntityTypeConfiguration<QuestionPlacementRuleCondition>
{
    public void Configure(EntityTypeBuilder<QuestionPlacementRuleCondition> builder)
    {
        builder.ConfigureTenantOwned("question_placement_rule_conditions");
        builder.Property(entity => entity.Operator).HasSnakeCaseEnum();
        builder.HasIndex(entity => new
        {
            entity.TenantId,
            entity.RuleGroupId,
            entity.TargetDimensionDefinitionId,
            entity.TargetNodeId,
            entity.Operator
        }).IsUnique();
        builder.HasOne<QuestionPlacementRuleGroup>().WithMany()
            .HasForeignKey(entity => new { entity.TenantId, Id = entity.RuleGroupId })
            .HasPrincipalKey(entity => new { entity.TenantId, entity.Id })
            .OnDelete(DeleteBehavior.Cascade);
        builder.HasOne<TargetDimensionDefinition>().WithMany()
            .HasForeignKey(entity => entity.TargetDimensionDefinitionId)
            .OnDelete(DeleteBehavior.Restrict);
        builder.HasOne<TargetNode>().WithMany()
            .HasForeignKey(entity => entity.TargetNodeId)
            .OnDelete(DeleteBehavior.Restrict);
    }
}