exports.up = async (knex) => {
	await knex.schema.alterTable('actors_social', (table) => {
		table.dropUnique(['url', 'actor_id', 'profile_id']);
		table.dropColumn('profile_id');

		table.string('username');

		table.unique(['actor_id', 'platform', 'username']);
		table.unique(['actor_id', 'url']);

		table.datetime('verified_at');
	});

	await knex.raw('ALTER TABLE actors_social ADD CONSTRAINT actors_url_or_username CHECK (num_nulls(username, url) = 1);');
	await knex.raw('ALTER TABLE actors_social ADD CONSTRAINT actors_username_and_platform CHECK (num_nulls(platform, username) = 2 or num_nulls(platform, username) = 0);');
};

exports.down = async (knex) => {
	await knex.raw('ALTER TABLE actors_social DROP CONSTRAINT actors_url_or_username;');
	await knex.raw('ALTER TABLE actors_social DROP CONSTRAINT actors_username_and_platform;');

	await knex.schema.alterTable('actors_social', (table) => {
		table.dropUnique(['actor_id', 'platform', 'username']);
		table.dropUnique(['actor_id', 'url']);

		table.integer('profile_id')
			.references('id')
			.inTable('actors_profiles');

		table.dropColumn('username');
		table.dropColumn('verified_at');

		table.unique(['url', 'actor_id', 'profile_id']);
	});
};