feat: add resume_tournament function with catch-up scheduling

Author: Flegma

hasura/functions/tournaments/resume_tournament.sql

@@ -0,0 +1,36 @@
+CREATE OR REPLACE FUNCTION public.resume_tournament(_tournament_id uuid)
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    bracket_row tournament_brackets%ROWTYPE;
+    _tournament_status text;
+BEGIN
+    SELECT status INTO _tournament_status FROM tournaments WHERE id = _tournament_id;
+
+    IF _tournament_status != 'Paused' THEN
+        RAISE EXCEPTION 'Tournament is not paused' USING ERRCODE = '22000';
+    END IF;
+
+    -- Set status back to Live
+    UPDATE tournaments SET status = 'Live' WHERE id = _tournament_id;
+
+    -- Schedule all ready brackets that were blocked during pause
+    FOR bracket_row IN
+        SELECT tb.*
+        FROM tournament_brackets tb
+        INNER JOIN tournament_stages ts ON ts.id = tb.tournament_stage_id
+        WHERE ts.tournament_id = _tournament_id
+          AND tb.match_id IS NULL
+          AND tb.finished = false
+          AND tb.tournament_team_id_1 IS NOT NULL
+          AND tb.tournament_team_id_2 IS NOT NULL
+        ORDER BY tb.round, tb.match_number
+    LOOP
+        PERFORM schedule_tournament_match(bracket_row);
+    END LOOP;
+
+    -- Recalculate ETAs
+    PERFORM calculate_tournament_bracket_start_times(_tournament_id);
+END;
+$$;