From 4991e50bc971f0223058c826b7b66d7c36781ced Mon Sep 17 00:00:00 2001
From: youngkidwarrior <victor@she.energy>
Date: Sat, 9 Nov 2024 18:17:24 -0800
Subject: [PATCH] Calculate send slash function

---
 supabase/database-generated.types.ts          |  13 +++
 .../20241110000436_calculate_send_slash.sql   | 106 ++++++++++++++++++
 2 files changed, 119 insertions(+)
 create mode 100644 supabase/migrations/20241110000436_calculate_send_slash.sql

diff --git a/supabase/database-generated.types.ts b/supabase/database-generated.types.ts
index d573df701..1cd951302 100644
--- a/supabase/database-generated.types.ts
+++ b/supabase/database-generated.types.ts
@@ -295,6 +295,7 @@ export type Database = {
           number: number
           qualification_end: string
           qualification_start: string
+          send_slash_divisor: number | null
           snapshot_block_num: number | null
           updated_at: string
         }
@@ -313,6 +314,7 @@ export type Database = {
           number: number
           qualification_end: string
           qualification_start: string
+          send_slash_divisor?: number | null
           snapshot_block_num?: number | null
           updated_at?: string
         }
@@ -331,6 +333,7 @@ export type Database = {
           number?: number
           qualification_end?: string
           qualification_start?: string
+          send_slash_divisor?: number | null
           snapshot_block_num?: number | null
           updated_at?: string
         }
@@ -1228,6 +1231,16 @@ export type Database = {
         Args: Record<PropertyKey, never>
         Returns: string
       }
+      get_send_slash_calculations: {
+        Args: {
+          distribution_number: number
+        }
+        Returns: {
+          user_id: string
+          capped_sum: number
+          slash_percentage: number
+        }[]
+      }
       insert_challenge: {
         Args: Record<PropertyKey, never>
         Returns: {
diff --git a/supabase/migrations/20241110000436_calculate_send_slash.sql b/supabase/migrations/20241110000436_calculate_send_slash.sql
new file mode 100644
index 000000000..3c424897b
--- /dev/null
+++ b/supabase/migrations/20241110000436_calculate_send_slash.sql
@@ -0,0 +1,106 @@
+ALTER TABLE "public"."distributions"
+  ADD COLUMN "send_slash_minimum_sends" smallint DEFAULT '1'::smallint;
+
+ALTER TABLE "public"."distributions"
+  ADD COLUMN "send_slash_past_rewards_divisor" smallint DEFAULT '1'::smallint;
+
+UPDATE
+  "public"."distributions"
+SET
+  send_slash_minimum_sends = 50
+WHERE
+  number = 9;
+
+UPDATE
+  "public"."distributions"
+SET
+  send_slash_past_rewards_divisor = 3
+WHERE
+  number = 9;
+
+CREATE OR REPLACE FUNCTION get_send_slash_calculations(distribution_number integer)
+  RETURNS TABLE(
+    user_id uuid,
+    capped_sum numeric,
+    slash_percentage numeric)
+  LANGUAGE plpgsql
+  AS $$
+BEGIN
+  RETURN QUERY WITH distribution_info AS(
+    SELECT
+      id,
+      qualification_start,
+      qualification_end,
+      send_slash_minimum_sends,
+      send_slash_past_rewards_divisor,
+      hodler_min_balance,
+(
+        SELECT
+          SUM(ds.amount)
+        FROM
+          distribution_shares ds
+        WHERE
+          ds.distribution_id =(
+            SELECT
+              id
+            FROM
+              distributions
+            WHERE
+              number = distribution_number - 1)) AS prev_shares
+        FROM
+          distributions
+        WHERE
+          number = distribution_number
+),
+previous_shares AS(
+  SELECT
+    ds.user_id,
+    ds.amount AS user_prev_shares
+  FROM
+    distribution_shares ds
+  WHERE
+    ds.distribution_id =(
+      SELECT
+        id
+      FROM
+        distributions
+      WHERE
+        number = distribution_number - 1)
+),
+user_transfers AS(
+  SELECT
+    sa.user_id,
+    SUM(LEAST(stt.v,(ROUND(COALESCE(ps.user_prev_shares, di.hodler_min_balance) /(di.send_slash_minimum_sends * di.send_slash_past_rewards_divisor)))::numeric)) AS capped_sum
+FROM
+  send_token_transfers stt
+  JOIN send_accounts sa ON sa.address = concat('0x', encode(stt.f, 'hex'))::citext
+    CROSS JOIN distribution_info di
+    LEFT JOIN previous_shares ps ON ps.user_id = sa.user_id
+  WHERE
+    stt.block_time >= extract(epoch FROM di.qualification_start)
+    AND stt.block_time < extract(epoch FROM di.qualification_end)
+  GROUP BY
+    sa.user_id
+)
+SELECT
+  ut.user_id,
+  ut.capped_sum,
+  ROUND(
+    CASE WHEN ut.capped_sum > 0 THEN
+      LEAST(1.0, ut.capped_sum / NULLIF(COALESCE((
+            SELECT
+              user_prev_shares
+            FROM previous_shares ps
+          WHERE
+            ps.user_id = ut.user_id), di.hodler_min_balance) / di.send_slash_past_rewards_divisor, 0))::numeric
+ELSE
+  0
+    END, 8) AS slash_percentage
+FROM
+  user_transfers ut
+  CROSS JOIN distribution_info di
+WHERE
+  ut.capped_sum > 0;
+END;
+$$;
+