From f28c6531c8f81237574501ad09067ec0291fa21d Mon Sep 17 00:00:00 2001
From: John Estabrook <jestabro@vyos.io>
Date: Wed, 8 Mar 2023 13:30:03 -0600
Subject: graphql: T5068: generate client operations for code generation tools

---
 .../api/graphql/generate/schema_from_op_mode.py    | 89 +++++++++++++++++++++-
 1 file changed, 86 insertions(+), 3 deletions(-)

(limited to 'src/services/api/graphql')

diff --git a/src/services/api/graphql/generate/schema_from_op_mode.py b/src/services/api/graphql/generate/schema_from_op_mode.py
index 5e00e66bc..cb7b0fd21 100755
--- a/src/services/api/graphql/generate/schema_from_op_mode.py
+++ b/src/services/api/graphql/generate/schema_from_op_mode.py
@@ -39,8 +39,10 @@ else:
 
 OP_MODE_PATH = directories['op_mode']
 SCHEMA_PATH = directories['api_schema']
+CLIENT_OP_PATH = directories['api_client_op']
 DATA_DIR = directories['data']
 
+
 op_mode_include_file = os.path.join(DATA_DIR, 'op-mode-standardized.json')
 op_mode_error_schema = 'op_mode_error.graphql'
 
@@ -118,6 +120,40 @@ type {{ name }} implements OpModeError {
 {%- endfor %}
 """
 
+op_query_template = """
+query {{ op_name }} ({{ op_sig }}) {
+  {{ op_name }} (data: { {{ op_arg }} }) {
+    success
+    errors
+    op_mode_error {
+      name
+      message
+      vyos_code
+    }
+    data {
+      result
+    }
+  }
+}
+"""
+
+op_mutation_template = """
+mutation {{ op_name }} ({{ op_sig }}) {
+  {{ op_name }} (data: { {{ op_arg }} }) {
+    success
+    errors
+    op_mode_error {
+      name
+      message
+      vyos_code
+    }
+    data {
+      result
+    }
+  }
+}
+"""
+
 def create_schema(func_name: str, base_name: str, func: callable,
                   enums: dict) -> str:
     sig = signature(func)
@@ -152,6 +188,44 @@ def create_schema(func_name: str, base_name: str, func: callable,
 
     return res
 
+def create_client_op(func_name: str, base_name: str, func: callable,
+                     enums: dict) -> str:
+    sig = signature(func)
+
+    for k in sig.parameters:
+        t = get_literal_values(sig.parameters[k].annotation)
+        if t:
+            enums[t] = snake_to_pascal_case(sig.parameters[k].name + '_' + base_name)
+
+    field_dict = {}
+    for k in sig.parameters:
+        field_dict[sig.parameters[k].name] = map_type_name(sig.parameters[k].annotation, enums)
+
+    # It is assumed that if one is generating a schema for a 'show_*'
+    # function, that 'get_raw_data' is present and 'raw' is desired.
+    if 'raw' in list(field_dict):
+        del field_dict['raw']
+
+    op_sig = ['$key: String']
+    op_arg = ['key: $key']
+    for k,v in field_dict.items():
+        op_sig.append('$'+k+': '+v)
+        op_arg.append(k+': $'+k)
+
+    op_data = {}
+    op_data['op_name'] = snake_to_pascal_case(func_name + '_' + base_name)
+    op_data['op_sig'] = ', '.join(op_sig)
+    op_data['op_arg'] = ', '.join(op_arg)
+
+    if is_show_function_name(func_name):
+        j2_template = Template(op_query_template)
+    else:
+        j2_template = Template(op_mutation_template)
+
+    res = j2_template.render(op_data)
+
+    return res
+
 def create_enums(enums: dict) -> str:
     enum_data = []
     for k, v in enums.items():
@@ -186,6 +260,8 @@ def create_error_schema():
     return res
 
 def generate_op_mode_definitions():
+    os.makedirs(CLIENT_OP_PATH, exist_ok=True)
+
     out = create_error_schema()
     with open(f'{SCHEMA_PATH}/{op_mode_error_schema}', 'w') as f:
         f.write(out)
@@ -204,16 +280,23 @@ def generate_op_mode_definitions():
         for (name, thunk) in funcs:
             funcs_dict[name] = thunk
 
-        results = []
+        schema = []
+        client_op = []
         enums = {} # gather enums from function Literal type args
         for name,func in funcs_dict.items():
             res = create_schema(name, basename, func, enums)
-            results.append(res)
+            schema.append(res)
+            res = create_client_op(name, basename, func, enums)
+            client_op.append(res)
 
         out = create_enums(enums)
-        out += '\n'.join(results)
+        out += '\n'.join(schema)
         with open(f'{SCHEMA_PATH}/{basename}.graphql', 'w') as f:
             f.write(out)
 
+        out = '\n'.join(client_op)
+        with open(f'{CLIENT_OP_PATH}/{basename}.graphql', 'w') as f:
+            f.write(out)
+
 if __name__ == '__main__':
     generate_op_mode_definitions()
-- 
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