add envelop

Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>

migrations/000004_envelopes_and_transactions.up.sql

@@ -0,0 +1,49 @@
+-- Snapshots dédiés aux enveloppes (strictement monétaires = valeur EUR uniquement)
+CREATE TABLE envelope_snapshot (
+    date        DATE    NOT NULL,
+    envelope_id INTEGER NOT NULL REFERENCES envelope(id) ON DELETE CASCADE,
+    valeur      NUMERIC(24, 8) NOT NULL,
+    PRIMARY KEY (date, envelope_id)
+);
+SELECT create_hypertable('envelope_snapshot', by_range('date'));
+CREATE INDEX idx_envelope_snapshot_lookup ON envelope_snapshot(envelope_id, date DESC);
+
+-- Mise à jour de la table transaction :
+-- Les enveloppes deviennent de vrais participants source/dest (plus de envelope_id de catégorie)
+ALTER TABLE transaction
+    DROP COLUMN envelope_id,
+    ADD COLUMN envelope_source_id INTEGER REFERENCES envelope(id),
+    ADD COLUMN envelope_dest_id   INTEGER REFERENCES envelope(id);
+
+-- Remplacement de la contrainte CHECK pour couvrir account et envelope comme participants
+ALTER TABLE transaction DROP CONSTRAINT chk_transaction_sides;
+
+ALTER TABLE transaction ADD CONSTRAINT chk_transaction_sides CHECK (
+    -- Côté source : au plus un parmi (account, envelope), les trois champs cohérents ou tous null
+    (
+        (account_source_id IS NOT NULL AND envelope_source_id IS NULL
+         OR account_source_id IS NULL AND envelope_source_id IS NOT NULL
+         OR account_source_id IS NULL AND envelope_source_id IS NULL)
+        AND
+        (((account_source_id IS NOT NULL OR envelope_source_id IS NOT NULL)
+          AND instrument_source_id IS NOT NULL AND quantite_source IS NOT NULL)
+         OR (account_source_id IS NULL AND envelope_source_id IS NULL
+             AND instrument_source_id IS NULL AND quantite_source IS NULL))
+    )
+    AND
+    -- Côté dest : même logique
+    (
+        (account_dest_id IS NOT NULL AND envelope_dest_id IS NULL
+         OR account_dest_id IS NULL AND envelope_dest_id IS NOT NULL
+         OR account_dest_id IS NULL AND envelope_dest_id IS NULL)
+        AND
+        (((account_dest_id IS NOT NULL OR envelope_dest_id IS NOT NULL)
+          AND instrument_dest_id IS NOT NULL AND quantite_dest IS NOT NULL)
+         OR (account_dest_id IS NULL AND envelope_dest_id IS NULL
+             AND instrument_dest_id IS NULL AND quantite_dest IS NULL))
+    )
+    AND
+    -- Au moins un côté doit exister
+    (account_source_id IS NOT NULL OR envelope_source_id IS NOT NULL
+     OR account_dest_id IS NOT NULL OR envelope_dest_id IS NOT NULL)
+);