# Copyright 2018 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

from recipe_engine import recipe_api

CATAPULT_URL = "https://chromeperf.appspot.com"


class CatapultApi(recipe_api.RecipeApi):
    """CatapultApi provides support for the Catapult infra tool."""

    @property
    def _catapult(self):
        return self.m.ensure_tool("catapult", self.resource("tool_manifest.json"))

    def upload_test_outputs(self, output_dir):
        """Uploads test outputs to Catapult from a specified directory.

        Uploads only Catapult HistogramSet JSON files with the expected catapult
        extension (.catapult_json)

        Args:
            output_dir (Path): A directory containing catapult files produced by
                the tests.
        """
        for filepath in self.m.file.glob_paths(
            "locate catapult files",
            output_dir,
            pattern=self.m.path.join("**", "*.catapult_json"),
            test_data=["benchmark.catapult_json"],
        ):
            basename = self.m.path.basename(filepath)
            with self.m.step.nest(f"upload {basename}"):
                self._run("upload", "-url", CATAPULT_URL, "-timeout", "60s", filepath)

    def _run(self, subcommand, *flags, **kwargs):
        """Return a catapult command step.

        Args:
            subcommand (str): The Catapult CLI command to run; e.g.
                'make_histogram' or 'update'.
            flags (seq(str)): Flags to pass to the subcommand.
            kwargs (dict): Passed through to api.step().
        """
        cmd = [self._catapult, subcommand]
        cmd.extend(flags)
        with self.m.context(infra_steps=True):
            return self.m.step("catapult " + subcommand, cmd, **kwargs)