SET autocommit=0;
USE provisioning;

ALTER TABLE `voip_time_periods` MODIFY `bysetpos` varchar(45);
ALTER TABLE `voip_time_periods` ADD COLUMN `duration` varchar(45);
ALTER TABLE `voip_time_periods` ADD COLUMN `wkst` varchar(2);

DROP VIEW IF EXISTS `provisioning`.`v_time_periods_ical`;
CREATE VIEW `provisioning`.`v_time_periods_ical` AS
SELECT p.`id`, p.`time_set_id`, p.`start`, p.`end`, p.`comment`,
concat(
    "DTSTART:",DATE_FORMAT(p.start,'%Y%m%dT%H%i%s'),"\n",
    "RRULE:",
    "FREQ=",p.freq,
    IFNULL(CONCAT(";COUNT=",     p.`count`),''),
    IFNULL(CONCAT(";UNTIL=",     DATE_FORMAT(p.until,'%Y%m%dT%H%i%s')),''),
    IFNULL(CONCAT(";INTERVAL=",  p.`interval`),''),
    IFNULL(CONCAT(";BYSECOND=",  p.bysecond),''),
    IFNULL(CONCAT(";BYMINUTE=",  p.byminute),''),
    IFNULL(CONCAT(";BYHOUR=",    p.byhour),''),
    IFNULL(CONCAT(";BYDAY=",     p.byday),''),
    IFNULL(CONCAT(";BYMONTHDAY=",p.bymonthday),''),
    IFNULL(CONCAT(";BYYEARDAY=", p.byyearday),''),
    IFNULL(CONCAT(";BYWEEKNO=",  p.byweekno),''),
    IFNULL(CONCAT(";BYMONTH=",   p.bymonth),''),
    IFNULL(CONCAT(";BYSETPOS=",  p.bysetpos),''),
    IFNULL(CONCAT(";WKST=",      p.wkst),'')
) AS rrule_ical,
concat(
    "BEGIN:VEVENT\n",
    "UID:","sipwise",p.id,"@sipwise",s.id,"\n",
    "SUMMARY:",s.name," event ",p.id,"\n",
    "DTSTART:",DATE_FORMAT(p.start,'%Y%m%dT%H%i%s'),"\n",
    IF(year(p.end) !="0000",CONCAT("DTEND:",DATE_FORMAT(p.end,'%Y%m%dT%H%i%s'),"\n"),""),
    IFNULL(CONCAT("DURATION:",p.`duration`,"\n"),''),
    "RRULE:",
        "FREQ=",p.freq,
        IFNULL(CONCAT(";COUNT=",     p.`count`),''),
        IFNULL(CONCAT(";UNTIL=",     DATE_FORMAT(p.until,'%Y%m%dT%H%i%s')),''),
        IFNULL(CONCAT(";INTERVAL=",  p.`interval`),''),
        IFNULL(CONCAT(";BYSECOND=",  p.bysecond),''),
        IFNULL(CONCAT(";BYMINUTE=",  p.byminute),''),
        IFNULL(CONCAT(";BYHOUR=",    p.byhour),''),
        IFNULL(CONCAT(";BYDAY=",     p.byday),''),
        IFNULL(CONCAT(";BYMONTHDAY=",p.bymonthday),''),
        IFNULL(CONCAT(";BYYEARDAY=", p.byyearday),''),
        IFNULL(CONCAT(";BYWEEKNO=",  p.byweekno),''),
        IFNULL(CONCAT(";BYMONTH=",   p.bymonth),''),
        IFNULL(CONCAT(";BYSETPOS=",  p.bysetpos),''),
        IFNULL(CONCAT(";WKST=",      p.wkst),''),
        "\n",
    IFNULL(CONCAT("DESCRIPTION:",p.`comment`,"\n"),''),
    "END:VEVENT\n") AS event_ical
FROM provisioning.voip_time_sets s JOIN voip_time_periods p ON s.id = p.time_set_id;

DROP VIEW IF EXISTS `provisioning`.`v_time_sets_ical`;
CREATE VIEW `v_time_sets_ical` AS
SELECT s.id, s.name,
    concat (
        "BEGIN:VCALENDAR\n",
        "PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN\n",
		IFNULL(CONCAT("NAME:",s.name,"\n"),''),
        "VERSION:2.0\n\n",
        GROUP_CONCAT(p.event_ical SEPARATOR '\n'),
        "END:VCALENDAR\n"
    ) AS ical
FROM provisioning.voip_time_sets s LEFT JOIN v_time_periods_ical p ON s.id = p.time_set_id
GROUP BY s.id;


COMMIT;