<?xml version="1.0" encoding="UTF-8"?>
<!-- 
:   SHALL be precise to the day (YYYYMMDD) or SHALL be precise to the second (YYYYMMDDhhmmss) without milliseconds.
:   SHALL include a time zone if more precise to the second (YYYYMMDDhhmmss[+/-]HHMM)
    Status: draft
-->
<rule xmlns="http://purl.oclc.org/dsdl/schematron" abstract="true" id="TS.AT.TZ">
    <extends rule="TS"/>
    
    <assert role="error" test="not(@value) or matches(@value,'^[0-9]{8}$') or matches(@value,'^[0-9]{14}[^\.]+')" see="https://docs.art-decor.org/documentation/datatypes/DTr1_TS.AT.TZ"
        >dtr1-1-TS.AT.TZ: time if specified SHALL be precise to the day (YYYYMMDD) or SHALL be precise to the second (YYYYMMDDhhmmss) without milliseconds. Found <value-of select="local-name()"/> "<value-of select="@value"/>"</assert>
    
    <let name="theTZ" value="replace(@value,'^-?[^+-]+([+-].*)?$','$1')"/>
    <assert role="error" test="not(@value) or matches(@value,'^[0-9]{0,8}$') or (not($theTZ = '' or $theTZ = @value))" see="https://docs.art-decor.org/documentation/datatypes/DTr1_TS.AT.TZ"
        >dtr1-2-TS.AT.TZ: time SHALL include a time zone if more precise to the second (YYYYMMDDhhmmss[+/-]HHMM). Found <value-of select="local-name()"/> "<value-of select="@value"/>"</assert>
    
</rule>
