-- contacts_census.sql — A/B/C census for the contacts <-> fundraising_contacts consolidation.
-- COUNTS ONLY: no names, emails, or amounts — nothing identifying leaves the box.
--
-- Run wherever you have the DB:
--   on the box (container shell):  sqlite3 /data/crm.db < contacts_census.sql
--   against a local copy:          sqlite3 data/crm.db  < contacts_census.sql
--
-- Canonical link: fundraising_contacts.contact_id -> contacts.id (migration 0004).
--   A = contact linked to >=1 grid pill   (healthy overlap — already done)
--   B = live contact with NO grid pill     (needs a grid row/pill created)
--   C = grid pill with contact_id IS NULL  (needs a contacts row created)
-- Sanity: A + B should equal "total live contacts".

.headers on
.mode column

WITH
linked AS (   -- contacts referenced by at least one grid pill
  SELECT DISTINCT c.id
  FROM contacts c
  WHERE c.deleted_at IS NULL
    AND EXISTS (SELECT 1 FROM fundraising_contacts fc WHERE fc.contact_id = c.id)
),
unlinked AS ( -- B: live contacts with no pill pointing at them
  SELECT c.id, c.contact_type
  FROM contacts c
  WHERE c.deleted_at IS NULL
    AND NOT EXISTS (SELECT 1 FROM fundraising_contacts fc WHERE fc.contact_id = c.id)
)
SELECT 'total live contacts'                              AS metric, (SELECT COUNT(*) FROM contacts WHERE deleted_at IS NULL) AS n
UNION ALL SELECT 'A: linked (contact <-> grid pill)',     (SELECT COUNT(*) FROM linked)
UNION ALL SELECT 'B: contacts-only (no grid pill)',       (SELECT COUNT(*) FROM unlinked)
UNION ALL SELECT '   ...of B, contact_type=investor',     (SELECT COUNT(*) FROM unlinked WHERE contact_type='investor')
UNION ALL SELECT '   ...of B, contact_type=prospect',     (SELECT COUNT(*) FROM unlinked WHERE contact_type='prospect')
UNION ALL SELECT '   ...of B, with >=1 live communication', (SELECT COUNT(*) FROM unlinked u WHERE EXISTS (SELECT 1 FROM communications cm WHERE cm.contact_id=u.id AND cm.deleted_at IS NULL))
UNION ALL SELECT '   ...of B, with >=1 live opportunity',   (SELECT COUNT(*) FROM unlinked u WHERE EXISTS (SELECT 1 FROM opportunities o WHERE o.contact_id=u.id AND o.deleted_at IS NULL))
UNION ALL SELECT 'C: pill-only (contact_id IS NULL)',     (SELECT COUNT(*) FROM fundraising_contacts WHERE contact_id IS NULL)
UNION ALL SELECT '   dangling pills (contact_id set, no live contact)',
                 (SELECT COUNT(*) FROM fundraising_contacts fc
                  WHERE fc.contact_id IS NOT NULL
                    AND NOT EXISTS (SELECT 1 FROM contacts c WHERE c.id=fc.contact_id AND c.deleted_at IS NULL))
UNION ALL SELECT 'context: total grid pills (fundraising_contacts)',   (SELECT COUNT(*) FROM fundraising_contacts)
UNION ALL SELECT 'context: total grid rows (fundraising_investors)',   (SELECT COUNT(*) FROM fundraising_investors);