add/encode-udf-base58 (#81)

* new udfs

* typo

macros/core/functions.py.sql

@@ -122,6 +122,32 @@ def transform(events: list):
 
 {% endmacro %}
 
+{% macro create_udf_base58_to_hex() %}
+
+def transform_base58_to_hex(base58):
+    if base58 is None:
+        return 'Invalid input'
+
+    ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
+    base_count = len(ALPHABET)
+
+    num = 0
+    for char in base58:
+        num *= base_count
+        if char in ALPHABET:
+            num += ALPHABET.index(char)
+        else:
+            return 'Invalid character in input'
+
+    hex_string = hex(num)[2:]
+
+    if len(hex_string) % 2 != 0:
+        hex_string = '0' + hex_string
+
+    return '0x' + hex_string
+
+{% endmacro %}
+
 {% macro create_udf_hex_to_base58() %}
 
 def transform_hex_to_base58(hex):

macros/core/utils.yaml.sql

@@ -238,6 +238,17 @@
     RETURNS NULL ON NULL INPUT
   sql: evm/decode/log
 
+- name: {{ schema }}.udf_base58_to_hex
+  signature:
+    - [base58, STRING]
+  return_type: TEXT
+  options: |
+    LANGUAGE PYTHON
+    RUNTIME_VERSION = '3.8'
+    HANDLER = 'transform_base58_to_hex'
+  sql: |
+    {{ create_udf_base58_to_hex() | indent(4) }}
+
 - name: {{ schema }}.udf_hex_to_base58
   signature:
     - [hex, STRING]