Huge refactor to api and add batch api

api/s0_base.py

@@ -1,7 +1,6 @@
 from psycopg.rows import dict_row, Row
 from .connection import g_conn_dict as conn
 from .operation import *
-from .change_set import ChangeSet
 
 
 _NODE = "_node"
@@ -94,93 +93,6 @@ def get_patterns(name: str) -> list[str]:
     return _get_all(name, _PATTERN)
 
 
-def add_node(name: str, node_type: str, id: str, x: float, y: float, table_sql: str, table_undo_sql: str) -> ChangeSet:
-    if is_node(name, id):
-        return ChangeSet()
-
-    with conn[name].cursor() as cur:
-        sql = f"insert into _node (id, type) values ('{id}', '{node_type}');"
-        sql += table_sql
-        sql += f"insert into coordinates (node, coord) values ('{id}', '({x}, {y})');"
-        cur.execute(sql)
-
-        redo = sql.replace("'", '"')
-        undo = f'delete from coordinates where node = "{id}";'
-        undo += table_undo_sql
-        undo += f'delete from _node where id = "{id}";'
-        add_operation(name, redo, undo)
-
-    change = ChangeSet()
-    change.add(node_type, id)
-    return change
-
-
-def delete_node(name: str, node_type: str, id: str, table_sql: str, table_undo_sql: str) -> ChangeSet:
-    if not is_node(name, id):
-        return ChangeSet()
-
-    with conn[name].cursor(row_factory=dict_row) as cur:
-        cur.execute(f"select * from coordinates where node = '{id}'")
-        row = cur.fetchone()
-        if row == None:
-            return ChangeSet()
-
-        coord = row['coord']
-
-        sql = f"delete from coordinates where node = '{id}'; "
-        sql += table_sql
-        sql += f" delete from _node where id = '{id}';"
-        cur.execute(sql)
-
-        redo = sql.replace("'", '"')
-        undo = f'insert into _node (id, type) values ("{id}", "{node_type}");'
-        undo += table_undo_sql
-        undo += f'insert into coordinates (node, coord) values ("{id}", "{coord}");'
-        add_operation(name, redo, undo)
-
-    change = ChangeSet()
-    change.delete(node_type, id)
-    return change
-
-
-def add_link(name: str, link_type: str, id: str, table_sql: str, table_undo_sql: str) -> ChangeSet:
-    if is_link(name, id):
-        return ChangeSet()
-
-    with conn[name].cursor() as cur:
-        sql = f"insert into _link (id, type) values ('{id}', '{link_type}');"
-        sql += table_sql
-        cur.execute(sql)
-
-        redo = sql.replace("'", '"')
-        undo = table_undo_sql
-        undo += f'delete from _link where id = "{id}";'
-        add_operation(name, redo, undo)
-
-    change = ChangeSet()
-    change.add(link_type, id)
-    return change
-
-
-def delete_link(name: str, link_type: str, id: str, table_sql: str, table_undo_sql: str) -> ChangeSet:
-    if not is_link(name, id):
-        return ChangeSet()
-
-    with conn[name].cursor(row_factory=dict_row) as cur:
-        sql = table_sql
-        sql += f" delete from _link where id = '{id}';"
-        cur.execute(sql)
-
-        redo = sql.replace("'", '"')
-        undo = f'insert into _link (id, type) values ("{id}", "{link_type}"); '
-        undo += table_undo_sql
-        add_operation(name, redo, undo)
-
-    change = ChangeSet()
-    change.delete(link_type, id)
-    return change
-
-
 def get_node_links(name: str, id: str) -> list[str]:
     with conn[name].cursor(row_factory=dict_row) as cur:
         links: list[str] = []