From 3e7da19f479d49a71fb8975c6ef300d11da54b03 Mon Sep 17 00:00:00 2001
From: Mike Stepanovic <mike.stepanovic@flipsidecrypto.com>
Date: Wed, 23 Jul 2025 10:00:38 -0600
Subject: [PATCH] first draft

---
 models/silver/core/silver__transfers.sql | 76 ++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 models/silver/core/silver__transfers.sql

diff --git a/models/silver/core/silver__transfers.sql b/models/silver/core/silver__transfers.sql
new file mode 100644
index 0000000..762a574
--- /dev/null
+++ b/models/silver/core/silver__transfers.sql
@@ -0,0 +1,76 @@
+{{ config(
+    materialized = 'incremental',
+    unique_key = ['tx_digest','balance_change_index'],
+    incremental_strategy = 'merge',
+    merge_exclude_columns = ['inserted_timestamp'],
+    cluster_by = ['block_timestamp::DATE'],
+    incremental_predicates = ["dynamic_range_predicate", "block_timestamp::date"],
+    tags = ['core','transfers']
+) }}
+
+WITH 
+allowed_tx AS (
+    SELECT
+        tx_digest
+    FROM 
+        {{ ref('core__fact_transactions') }}
+    {% if is_incremental() %}
+    WHERE 
+        modified_timestamp >= (SELECT COALESCE(MAX(modified_timestamp),'1970-01-01') FROM {{ this }})
+    {% endif %}
+    GROUP BY 
+        tx_digest
+    HAVING SUM(
+        CASE
+            WHEN payload_type IN ('TransferObjects','SplitCoins','MergeCoins') THEN 0
+            WHEN payload_type = 'MoveCall' AND payload_details :package
+                = '0x0000000000000000000000000000000000000000000000000000000000000002'
+            THEN 0
+            ELSE 1
+        END
+    ) = 0
+),
+
+coin_only_tx AS (
+    SELECT
+        tx_digest
+    FROM 
+        {{ ref('core__fact_changes') }}
+    WHERE 
+        tx_digest IN (SELECT tx_digest FROM allowed_tx)
+    {% if is_incremental() %}
+        AND modified_timestamp >= (SELECT COALESCE(MAX(modified_timestamp),'1970-01-01') FROM {{ this }})
+    {% endif %}
+    GROUP BY 
+        tx_digest
+    HAVING MAX(
+        CASE WHEN object_type ILIKE '0x2::coin::Coin%' THEN 0 ELSE 1 END
+    ) = 0
+)
+SELECT 
+    fbc.checkpoint_number,
+    fbc.block_timestamp,
+    fbc.tx_digest,
+    fbc.tx_succeeded,
+    fbc.tx_sender as sender,
+    fbc.owner as receiver,
+    fbc.balance_change_index,
+    dt.symbol,
+    dt.decimals,
+    fbc.amount as amount_raw,
+    fbc.amount / POWER(10, dt.decimals) as amount_normalized,
+    {{ dbt_utils.generate_surrogate_key(['tx_digest','balance_change_index']) }} AS transfers_id,
+    SYSDATE() AS inserted_timestamp,
+    SYSDATE() AS modified_timestamp,
+    '{{ invocation_id }}' AS _invocation_id
+FROM 
+    {{ ref('core__fact_balance_changes') }} fbc
+JOIN 
+    {{ ref('core__dim_tokens') }} dt ON fbc.coin_type = dt.coin_type
+WHERE 
+    fbc.tx_digest IN (SELECT tx_digest FROM coin_only_tx)
+    AND fbc.tx_sender != fbc.owner
+    {% if is_incremental() %}
+        AND fbc.modified_timestamp >= (SELECT COALESCE(MAX(modified_timestamp),'1970-01-01') FROM {{ this }})
+        AND dt.modified_timestamp >= (SELECT COALESCE(MAX(modified_timestamp),'1970-01-01') FROM {{ this }})
+    {% endif %}
\ No newline at end of file