import { buildInvalidOptionReceivedError } from '@sequelize/core/_non-semver-use-at-your-own-risk_/utils/check.js';
import { createSequelizeInstance, expectsql, sequelize } from '../../support';

const dialect = sequelize.dialect;
const notSupportedError = new Error(
  `Remove constraint queries are not supported by ${dialect.name} dialect`,
);

describe('QueryGenerator#removeConstraintQuery', () => {
  const queryGenerator = sequelize.queryGenerator;

  it('generates a query that drops a constraint', () => {
    expectsql(() => queryGenerator.removeConstraintQuery('myTable', 'myConstraint'), {
      default: 'ALTER TABLE [myTable] DROP CONSTRAINT [myConstraint]',
      sqlite3: notSupportedError,
    });
  });

  it('generates a query that drops a constraint with IF EXISTS', () => {
    expectsql(
      () => queryGenerator.removeConstraintQuery('myTable', 'myConstraint', { ifExists: true }),
      {
        default: 'ALTER TABLE [myTable] DROP CONSTRAINT IF EXISTS [myConstraint]',
        sqlite3: notSupportedError,
        'db2 ibmi mysql snowflake': buildInvalidOptionReceivedError(
          'removeConstraintQuery',
          dialect.name,
          ['ifExists'],
        ),
      },
    );
  });

  it('generates a query that drops a constraint with CASCADE', () => {
    expectsql(
      () => queryGenerator.removeConstraintQuery('myTable', 'myConstraint', { cascade: true }),
      {
        default: buildInvalidOptionReceivedError('removeConstraintQuery', dialect.name, [
          'cascade',
        ]),
        sqlite3: notSupportedError,
        'postgres snowflake': 'ALTER TABLE [myTable] DROP CONSTRAINT [myConstraint] CASCADE',
      },
    );
  });

  it('generates a query that drops a constraint with IF EXISTS and CASCADE', () => {
    expectsql(
      () =>
        queryGenerator.removeConstraintQuery('myTable', 'myConstraint', {
          cascade: true,
          ifExists: true,
        }),
      {
        default: buildInvalidOptionReceivedError('removeConstraintQuery', dialect.name, [
          'cascade',
        ]),
        postgres: 'ALTER TABLE "myTable" DROP CONSTRAINT IF EXISTS "myConstraint" CASCADE',
        snowflake: buildInvalidOptionReceivedError('removeConstraintQuery', dialect.name, [
          'ifExists',
        ]),
        sqlite3: notSupportedError,
      },
    );
  });

  it('generates a query that drops a constraint from a model', () => {
    const MyModel = sequelize.define('MyModel', {});

    expectsql(() => queryGenerator.removeConstraintQuery(MyModel, 'myConstraint'), {
      default: 'ALTER TABLE [MyModels] DROP CONSTRAINT [myConstraint]',
      sqlite3: notSupportedError,
    });
  });

  it('generates a query that drops a constraint from a model definition', () => {
    const MyModel = sequelize.define('MyModel', {});
    const myDefinition = MyModel.modelDefinition;

    expectsql(() => queryGenerator.removeConstraintQuery(myDefinition, 'myConstraint'), {
      default: 'ALTER TABLE [MyModels] DROP CONSTRAINT [myConstraint]',
      sqlite3: notSupportedError,
    });
  });

  it('generates a query that drops a constraint with schema', () => {
    expectsql(
      () =>
        queryGenerator.removeConstraintQuery(
          { tableName: 'myTable', schema: 'mySchema' },
          'myConstraint',
        ),
      {
        default: 'ALTER TABLE [mySchema].[myTable] DROP CONSTRAINT [myConstraint]',
        sqlite3: notSupportedError,
      },
    );
  });

  it('generates a query that drops a constraint with default schema', () => {
    expectsql(
      () =>
        queryGenerator.removeConstraintQuery(
          { tableName: 'myTable', schema: dialect.getDefaultSchema() },
          'myConstraint',
        ),
      {
        default: 'ALTER TABLE [myTable] DROP CONSTRAINT [myConstraint]',
        sqlite3: notSupportedError,
      },
    );
  });

  it('generates a query that drops a constraint from a table and globally set schema', () => {
    const sequelizeSchema = createSequelizeInstance({ schema: 'mySchema' });
    const queryGeneratorSchema = sequelizeSchema.queryGenerator;

    expectsql(() => queryGeneratorSchema.removeConstraintQuery('myTable', 'myConstraint'), {
      default: 'ALTER TABLE [mySchema].[myTable] DROP CONSTRAINT [myConstraint]',
      sqlite3: notSupportedError,
    });
  });

  it('generates a query that drops a column with schema and custom delimiter argument', () => {
    // This test is only relevant for dialects that do not support schemas
    if (dialect.supports.schemas) {
      return;
    }

    expectsql(
      () =>
        queryGenerator.removeConstraintQuery(
          { tableName: 'myTable', schema: 'mySchema', delimiter: 'custom' },
          'myConstraint',
        ),
      {
        sqlite3: notSupportedError,
      },
    );
  });
});