From 0dc547c8655a3115a33224817c99303da2aee500 Mon Sep 17 00:00:00 2001
From: Ant Zucaro <azucaro@gmail.com>
Date: Mon, 27 May 2024 17:58:06 -0400
Subject: [PATCH] Fix busted scoreboardpos games by year.

---
 scripts/scoreboardpos_fix/fix_by_year.sql | 62 +++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 scripts/scoreboardpos_fix/fix_by_year.sql

diff --git a/scripts/scoreboardpos_fix/fix_by_year.sql b/scripts/scoreboardpos_fix/fix_by_year.sql
new file mode 100644
index 0000000..0eda148
--- /dev/null
+++ b/scripts/scoreboardpos_fix/fix_by_year.sql
@@ -0,0 +1,62 @@
+-- Fixes the `scoreboardpos` field in player_game_stats records
+-- where they were sent incorrectly.
+--
+-- 1. Create a temporary table to drive the fixes and track status.
+-- 2. Iterate over the records in that table, fixing on a per-game basis. 
+-- 3. Drop the table.
+-- 4. Repeat with a different selection of games to fix!
+
+DROP TABLE IF EXISTS tmp_scoreboardpos_game_ids;
+
+CREATE TABLE tmp_scoreboardpos_game_ids AS
+SELECT game_id, FALSE::boolean processed
+FROM (
+    SELECT game_id, min(scoreboardpos) scoreboardpos
+    FROM player_game_stats
+    WHERE create_dt >= '2024-01-01' and create_dt <= '2024-12-31'
+    GROUP BY 1
+) sbp
+WHERE sbp.scoreboardpos != 1;
+
+-- After the table is created, we can examine its origin with this query.
+-- SELECT g.game_id, g.game_type_cd, s.server_id, s.name 
+-- FROM games g 
+-- JOIN tmp_scoreboardpos_game_ids tmp ON g.game_id = tmp.game_id 
+-- JOIN servers s ON g.server_id = s.server_id;
+
+CREATE OR REPLACE FUNCTION fix_scoreboardpos(in_game_id IN games.game_id%TYPE)
+RETURNS VOID AS $$
+BEGIN
+    WITH fixed AS (
+        SELECT player_game_stat_id, row_number() over(order by scoreboardpos, score desc, fastest) fixedpos, scoreboardpos, score, fastest 
+        FROM player_game_stats where game_id = in_game_id
+    )
+    UPDATE player_game_stats pgs
+    SET scoreboardpos = fixed.fixedpos
+    FROM fixed
+    WHERE pgs.player_game_stat_id = fixed.player_game_stat_id AND game_id = in_game_id;
+
+END
+$$ LANGUAGE plpgsql;
+
+-- You can check the before and after modifications to spot check with this query:
+-- select scoreboardpos, score from player_game_stats where game_id = 123456 order by scoreboardpos;
+
+DO $$
+DECLARE
+    cur REFCURSOR;
+    l_game_id games.game_id%TYPE;
+BEGIN
+    OPEN cur FOR SELECT game_id from tmp_scoreboardpos_game_ids WHERE processed = FALSE;
+    LOOP
+        FETCH cur into l_game_id;
+        EXIT WHEN NOT FOUND;
+
+        PERFORM fix_scoreboardpos(l_game_id);
+
+        UPDATE tmp_scoreboardpos_game_ids SET processed=TRUE WHERE game_id = l_game_id;
+
+    END LOOP;
+    CLOSE cur;
+END
+$$ LANGUAGE plpgsql;
-- 
2.39.2