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import json
from typing import ClassVar, TypeVar
import requests
from pydantic import BaseModel
from rich import print as rprint
from codegen.cli.api.endpoints import (
CREATE_ENDPOINT,
DEPLOY_ENDPOINT,
DOCS_ENDPOINT,
EXPERT_ENDPOINT,
IDENTIFY_ENDPOINT,
IMPROVE_ENDPOINT,
LOOKUP_ENDPOINT,
PR_LOOKUP_ENDPOINT,
RUN_ENDPOINT,
RUN_ON_PR_ENDPOINT,
)
from codegen.cli.api.schemas import (
AskExpertInput,
AskExpertResponse,
CodemodRunType,
CreateInput,
CreateResponse,
DeployInput,
DeployResponse,
DocsInput,
DocsResponse,
IdentifyResponse,
ImproveCodemodInput,
ImproveCodemodResponse,
LookupInput,
LookupOutput,
PRLookupInput,
PRLookupResponse,
RunCodemodInput,
RunCodemodOutput,
RunOnPRInput,
RunOnPRResponse,
)
from codegen.cli.auth.session import CodegenSession
from codegen.cli.codemod.convert import convert_to_ui
from codegen.cli.env.global_env import global_env
from codegen.cli.errors import InvalidTokenError, ServerError
from codegen.cli.utils.codemods import Codemod
from codegen.cli.utils.function_finder import DecoratedFunction
from codegen.shared.enums.programming_language import ProgrammingLanguage
InputT = TypeVar("InputT", bound=BaseModel)
OutputT = TypeVar("OutputT", bound=BaseModel)
class RestAPI:
"""Handles auth + validation with the codegen API."""
_session: ClassVar[requests.Session] = requests.Session()
auth_token: str
def __init__(self, auth_token: str):
self.auth_token = auth_token
def _get_headers(self) -> dict[str, str]:
"""Get headers with authentication token."""
return {"Authorization": f"Bearer {self.auth_token}"}
def _make_request(
self,
method: str,
endpoint: str,
input_data: InputT | None,
output_model: type[OutputT],
) -> OutputT:
"""Make an API request with input validation and response handling."""
if global_env.DEBUG:
rprint(f"[purple]{method}[/purple] {endpoint}")
if input_data:
rprint(f"{json.dumps(input_data.model_dump(), indent=4)}")
try:
headers = self._get_headers()
json_data = input_data.model_dump() if input_data else None
response = self._session.request(
method,
endpoint,
json=json_data,
headers=headers,
)
if response.status_code == 200:
try:
return output_model.model_validate(response.json())
except ValueError as e:
msg = f"Invalid response format: {e}"
raise ServerError(msg)
elif response.status_code == 401:
msg = "Invalid or expired authentication token"
raise InvalidTokenError(msg)
elif response.status_code == 500:
msg = "The server encountered an error while processing your request"
raise ServerError(msg)
else:
try:
error_json = response.json()
error_msg = error_json.get("detail", error_json)
except Exception:
error_msg = response.text
msg = f"Error ({response.status_code}): {error_msg}"
raise ServerError(msg)
except requests.RequestException as e:
msg = f"Network error: {e!s}"
raise ServerError(msg)
def run(
self,
function: DecoratedFunction | Codemod,
include_source: bool = True,
run_type: CodemodRunType = CodemodRunType.DIFF,
template_context: dict[str, str] | None = None,
) -> RunCodemodOutput:
"""Run a codemod transformation.
Args:
function: The function or codemod to run
include_source: Whether to include the source code in the request.
If False, uses the deployed version.
run_type: Type of run (diff or pr)
template_context: Context variables to pass to the codemod
"""
session = CodegenSession.from_active_session()
base_input = {
"codemod_name": function.name,
"repo_full_name": session.config.repository.full_name,
"codemod_run_type": run_type,
}
# Only include source if requested
if include_source:
source = function.get_current_source() if isinstance(function, Codemod) else function.source
base_input["codemod_source"] = convert_to_ui(source)
# Add template context if provided
if template_context:
base_input["template_context"] = template_context
input_data = RunCodemodInput(input=RunCodemodInput.BaseRunCodemodInput(**base_input))
return self._make_request(
"POST",
RUN_ENDPOINT,
input_data,
RunCodemodOutput,
)
def get_docs(self) -> DocsResponse:
"""Search documentation."""
session = CodegenSession.from_active_session()
return self._make_request(
"GET",
DOCS_ENDPOINT,
DocsInput(docs_input=DocsInput.BaseDocsInput(repo_full_name=session.config.repository.full_name)),
DocsResponse,
)
def ask_expert(self, query: str) -> AskExpertResponse:
"""Ask the expert system a question."""
return self._make_request(
"GET",
EXPERT_ENDPOINT,
AskExpertInput(input=AskExpertInput.BaseAskExpertInput(query=query)),
AskExpertResponse,
)
def create(self, name: str, query: str) -> CreateResponse:
"""Get AI-generated starter code for a codemod."""
session = CodegenSession.from_active_session()
language = ProgrammingLanguage(session.config.repository.language)
return self._make_request(
"GET",
CREATE_ENDPOINT,
CreateInput(input=CreateInput.BaseCreateInput(name=name, query=query, language=language)),
CreateResponse,
)
def identify(self) -> IdentifyResponse | None:
"""Identify the user's codemod."""
return self._make_request(
"POST",
IDENTIFY_ENDPOINT,
None,
IdentifyResponse,
)
def deploy(
self,
codemod_name: str,
codemod_source: str,
lint_mode: bool = False,
lint_user_whitelist: list[str] | None = None,
message: str | None = None,
arguments_schema: dict | None = None,
) -> DeployResponse:
"""Deploy a codemod to the Modal backend."""
session = CodegenSession.from_active_session()
return self._make_request(
"POST",
DEPLOY_ENDPOINT,
DeployInput(
input=DeployInput.BaseDeployInput(
codemod_name=codemod_name,
codemod_source=codemod_source,
repo_full_name=session.config.repository.full_name,
lint_mode=lint_mode,
lint_user_whitelist=lint_user_whitelist or [],
message=message,
arguments_schema=arguments_schema,
)
),
DeployResponse,
)
def lookup(self, codemod_name: str) -> LookupOutput:
"""Look up a codemod by name."""
session = CodegenSession.from_active_session()
return self._make_request(
"GET",
LOOKUP_ENDPOINT,
LookupInput(input=LookupInput.BaseLookupInput(codemod_name=codemod_name, repo_full_name=session.config.repository.full_name)),
LookupOutput,
)
def run_on_pr(self, codemod_name: str, repo_full_name: str, github_pr_number: int, language: str | None = None) -> RunOnPRResponse:
"""Test a webhook against a specific PR."""
return self._make_request(
"POST",
RUN_ON_PR_ENDPOINT,
RunOnPRInput(
input=RunOnPRInput.BaseRunOnPRInput(
codemod_name=codemod_name,
repo_full_name=repo_full_name,
github_pr_number=github_pr_number,
language=language,
)
),
RunOnPRResponse,
)
def lookup_pr(self, repo_full_name: str, github_pr_number: int) -> PRLookupResponse:
"""Look up a PR by repository and PR number."""
return self._make_request(
"GET",
PR_LOOKUP_ENDPOINT,
PRLookupInput(input=PRLookupInput.BasePRLookupInput(repo_full_name=repo_full_name, github_pr_number=github_pr_number)),
PRLookupResponse,
)
def improve_codemod(self, codemod: str, task: str, concerns: list[str], context: dict[str, str], language: ProgrammingLanguage) -> ImproveCodemodResponse:
"""Improve a codemod."""
return self._make_request(
"GET",
IMPROVE_ENDPOINT,
ImproveCodemodInput(input=ImproveCodemodInput.BaseImproveCodemodInput(codemod=codemod, task=task, concerns=concerns, context=context, language=language)),
ImproveCodemodResponse,
)