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<?xml version="1.0" encoding="UTF-8"?>
<asteria-flow name="TransferCustomerData">
    <description>ELT from Customer_Source.csv to SQL Server</description>
    
    <connection type="SQLServer" name="TargetDB">
        <host>sql-prod-01</host>
        <database>SalesDB</database>
    </connection>

    <component name="ReadCSV" type="FileIn">
        <path>/box/input/Customer_*.csv</path>
        <encoding>UTF-8</encoding>
        <columns>
            <column name="CustID" type="String" />
            <column name="FullName" type="String" />
            <column name="BirthDate" type="String" /> <column name="Balance" type="Decimal" />
        </columns>
    </component>

    <component name="Mapper" type="DataTransform">
        <logic>
            <rule target="customer_name" source="FullName">
                <transform type="Trim" />
                <validate type="NotNull" message="Name cannot be empty" />
            </rule>
            
            <rule target="dob" source="BirthDate">
                <transform type="DateFormat" input="yyyyMMdd" output="yyyy-MM-dd" />
            </rule>

            <rule target="is_vip" source="Balance">
                <if condition="Balance > 10000" then="1" else="0" />
            </rule>
        </logic>
    </component>

    <component name="WriteDB" type="DbOut" connection="TargetDB">
        <table name="STG_CUSTOMER" />
        <mode>Upsert</mode>
        <keys>
            <key column="customer_id" source="CustID" />
        </keys>
    </component>
</asteria-flow>