-- Migration Doctor snapshot, SQL export: group names from all active directories (complete list; REST caps it).
-- Read-only: a single SELECT, no writes, no temporary tables. Output: one JSON object per line.
-- Run (read-only) with sqlcmd and save the output as groups.jsonl. JIRA_SCHEMA is the schema of the
-- Jira tables (usually jiraschema, sometimes dbo):
--   sqlcmd -S DBHOST -d JIRADB -E -v JIRA_SCHEMA=jiraschema -y 0 -f 65001 -i groups.sql -o export/groups.jsonl
-- (-E uses Windows authentication; use -U READONLY_USER and let sqlcmd prompt for the password otherwise.)
-- Then pass the export directory to the snapshot script: --sql-export-dir export (bash) or -SqlExportDir export (PowerShell).

SET NOCOUNT ON;
SELECT (SELECT
         g.group_name AS [name]
       FOR JSON PATH, WITHOUT_ARRAY_WRAPPER, INCLUDE_NULL_VALUES)
FROM $(JIRA_SCHEMA).cwd_group g
JOIN $(JIRA_SCHEMA).cwd_directory d ON d.id = g.directory_id AND d.active = 1
WHERE g.active = 1
  AND d.directory_position = (
    SELECT MIN(d2.directory_position)
    FROM $(JIRA_SCHEMA).cwd_group g2 JOIN $(JIRA_SCHEMA).cwd_directory d2 ON d2.id = g2.directory_id AND d2.active = 1
    WHERE g2.lower_group_name = g.lower_group_name AND g2.active = 1)
ORDER BY g.lower_group_name;