package projection

import (
	"context"
	"database/sql"

	"github.com/zitadel/zitadel/backend/v3/domain"
	v3_sql "github.com/zitadel/zitadel/backend/v3/storage/database/dialect/sql"
	"github.com/zitadel/zitadel/backend/v3/storage/database/repository"
	"github.com/zitadel/zitadel/internal/eventstore"
	"github.com/zitadel/zitadel/internal/eventstore/handler/v2"
	"github.com/zitadel/zitadel/internal/repository/org"
	"github.com/zitadel/zitadel/internal/zerrors"
)

func (p *relationalTablesProjection) reduceOrgRelationalAdded(event eventstore.Event) (*handler.Statement, error) {
	e, ok := event.(*org.OrgAddedEvent)
	if !ok {
		return nil, zerrors.ThrowInvalidArgumentf(nil, "HANDL-uYq5R", "reduce.wrong.event.type %s", org.OrgAddedEventType)
	}

	return handler.NewStatement(e, func(ctx context.Context, ex handler.Executer, _ string) error {
		tx, ok := ex.(*sql.Tx)
		if !ok {
			return zerrors.ThrowInvalidArgumentf(nil, "HANDL-K6rs9Y", "reduce.wrong.db.pool %T", ex)
		}

		repo := repository.OrganizationRepository()
		return repo.Create(ctx, v3_sql.SQLTx(tx), &domain.Organization{
			ID:         e.Aggregate().ID,
			Name:       e.Name,
			InstanceID: e.Aggregate().InstanceID,
			State:      domain.OrgStateActive,
			CreatedAt:  e.CreatedAt(),
			UpdatedAt:  e.CreatedAt(),
		})
	}), nil
}

func (p *relationalTablesProjection) reduceOrgRelationalChanged(event eventstore.Event) (*handler.Statement, error) {
	e, ok := event.(*org.OrgChangedEvent)
	if !ok {
		return nil, zerrors.ThrowInvalidArgumentf(nil, "HANDL-Bg9om", "reduce.wrong.event.type %s", org.OrgChangedEventType)
	}
	if e.Name == "" {
		return handler.NewNoOpStatement(e), nil
	}
	return handler.NewStatement(e, func(ctx context.Context, ex handler.Executer, _ string) error {
		tx, ok := ex.(*sql.Tx)
		if !ok {
			return zerrors.ThrowInvalidArgumentf(nil, "HANDL-ZrVXLa", "reduce.wrong.db.pool %T", ex)
		}

		repo := repository.OrganizationRepository()
		_, err := repo.Update(ctx, v3_sql.SQLTx(tx),
			repo.PrimaryKeyCondition(e.Aggregate().InstanceID, e.Aggregate().ID),
			repo.SetName(e.Name),
			repo.SetUpdatedAt(e.CreatedAt()),
		)
		return err
	}), nil
}

func (p *relationalTablesProjection) reduceOrgRelationalDeactivated(event eventstore.Event) (*handler.Statement, error) {
	e, ok := event.(*org.OrgDeactivatedEvent)
	if !ok {
		return nil, zerrors.ThrowInvalidArgumentf(nil, "HANDL-BApK5", "reduce.wrong.event.type %s", org.OrgDeactivatedEventType)
	}

	return handler.NewStatement(e, func(ctx context.Context, ex handler.Executer, _ string) error {
		tx, ok := ex.(*sql.Tx)
		if !ok {
			return zerrors.ThrowInvalidArgumentf(nil, "HANDL-ro7g4", "reduce.wrong.db.pool %T", ex)
		}

		repo := repository.OrganizationRepository()
		_, err := repo.Update(ctx, v3_sql.SQLTx(tx),
			repo.PrimaryKeyCondition(e.Aggregate().InstanceID, e.Aggregate().ID),
			repo.SetState(domain.OrgStateInactive),
			repo.SetUpdatedAt(e.CreatedAt()),
		)
		return err
	}), nil
}

func (p *relationalTablesProjection) reduceOrgRelationalReactivated(event eventstore.Event) (*handler.Statement, error) {
	e, ok := event.(*org.OrgReactivatedEvent)
	if !ok {
		return nil, zerrors.ThrowInvalidArgumentf(nil, "HANDL-o38DE", "reduce.wrong.event.type %s", org.OrgReactivatedEventType)
	}
	return handler.NewStatement(e, func(ctx context.Context, ex handler.Executer, _ string) error {
		tx, ok := ex.(*sql.Tx)
		if !ok {
			return zerrors.ThrowInvalidArgumentf(nil, "HANDL-5snmW", "reduce.wrong.db.pool %T", ex)
		}

		repo := repository.OrganizationRepository()
		_, err := repo.Update(ctx, v3_sql.SQLTx(tx),
			repo.PrimaryKeyCondition(e.Aggregate().InstanceID, e.Aggregate().ID),
			repo.SetState(domain.OrgStateActive),
			repo.SetUpdatedAt(e.CreatedAt()),
		)
		return err
	}), nil
}

func (p *relationalTablesProjection) reduceOrgRelationalRemoved(event eventstore.Event) (*handler.Statement, error) {
	e, ok := event.(*org.OrgRemovedEvent)
	if !ok {
		return nil, zerrors.ThrowInvalidArgumentf(nil, "HANDL-DGm9g", "reduce.wrong.event.type %s", org.OrgRemovedEventType)
	}
	return handler.NewStatement(e, func(ctx context.Context, ex handler.Executer, _ string) error {
		tx, ok := ex.(*sql.Tx)
		if !ok {
			return zerrors.ThrowInvalidArgumentf(nil, "HANDL-6y7hJ", "reduce.wrong.db.pool %T", ex)
		}

		repo := repository.OrganizationRepository()
		_, err := repo.Delete(ctx, v3_sql.SQLTx(tx), repo.PrimaryKeyCondition(e.Aggregate().InstanceID, e.Aggregate().ID))
		return err
	}), nil
}