<?xml version="1.1" encoding="UTF-8" standalone="no"?>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
                   xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext"
                   xmlns:pro="http://www.liquibase.org/xml/ns/pro"
                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog dbchangelog.xsd
    http://www.liquibase.org/xml/ns/dbchangelog-ext dbchangelog.xsd
    http://www.liquibase.org/xml/ns/pro dbchangelog.xsd" >
    <changeSet author="Sheldan" id="channel-table">
        <createTable tableName="channel">
            <column name="id" type="BIGINT">
                <constraints nullable="false" primaryKey="true" primaryKeyName="channel_pkey"/>
            </column>
            <column name="created" type="TIMESTAMP WITHOUT TIME ZONE">
                <constraints nullable="true"/>
            </column>
            <column name="updated" type="TIMESTAMP WITHOUT TIME ZONE"/>
            <column name="deleted" type="BOOLEAN">
                <constraints nullable="true"/>
            </column>
            <column name="type" type="VARCHAR(255)">
                <constraints nullable="true"/>
            </column>
            <column name="server_id" type="BIGINT">
                <constraints nullable="false"/>
            </column>
        </createTable>
        <addForeignKeyConstraint baseColumnNames="server_id" baseTableName="channel" constraintName="fk_channel_server" deferrable="false" initiallyDeferred="false" onDelete="NO ACTION" onUpdate="NO ACTION" referencedColumnNames="id" referencedTableName="server" validate="true"/>
        <sql>
            DROP TRIGGER IF EXISTS channel_update_trigger ON channel;
            CREATE TRIGGER channel_update_trigger BEFORE UPDATE ON channel FOR EACH ROW EXECUTE PROCEDURE update_trigger_procedure();
        </sql>
        <sql>
            DROP TRIGGER IF EXISTS channel_insert_trigger ON channel;
            CREATE TRIGGER channel_insert_trigger BEFORE INSERT ON channel FOR EACH ROW EXECUTE PROCEDURE insert_trigger_procedure();
        </sql>
        <sql>
            ALTER TABLE channel ADD CONSTRAINT check_channel_type CHECK (type IN ('TEXT', 'DM', 'VOICE', 'NEWS', 'CATEGORY', 'UNKNOWN'));
        </sql>
    </changeSet>
</databaseChangeLog>