#!/usr/bin/env python
# ***** BEGIN LICENSE BLOCK *****
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.
# ***** END LICENSE BLOCK *****


from __future__ import absolute_import
import copy
import os
import sys

# load modules from parent dir
sys.path.insert(1, os.path.dirname(os.path.dirname(sys.path[0])))

from mozharness.base.python import PreScriptAction
from mozharness.mozilla.structuredlog import StructuredOutputParser
from mozharness.mozilla.testing.testbase import (
    TestingMixin,
    testing_config_options,
)
from mozharness.mozilla.testing.codecoverage import (
    CodeCoverageMixin,
    code_coverage_config_options,
)
from mozharness.mozilla.vcstools import VCSToolsScript

# General command line arguments for Firefox ui tests
telemetry_tests_config_options = (
    [
        [
            ["--allow-software-gl-layers"],
            {
                "action": "store_true",
                "dest": "allow_software_gl_layers",
                "default": False,
                "help": "Permits a software GL implementation (such as LLVMPipe) "
                "to use the GL compositor.",
            },
        ],
        [
            ["--dry-run"],
            {
                "dest": "dry_run",
                "default": False,
                "help": "Only show what was going to be tested.",
            },
        ],
        [
            ["--disable-e10s"],
            {
                "dest": "e10s",
                "action": "store_false",
                "default": True,
                "help": "Disable multi-process (e10s) mode when running tests.",
            },
        ],
        [
            ["--disable-fission"],
            {
                "dest": "disable_fission",
                "action": "store_true",
                "default": False,
                "help": "Disable fission mode when running tests.",
            },
        ],
        [
            ["--setpref"],
            {
                "dest": "extra_prefs",
                "action": "append",
                "default": [],
                "help": "Extra user prefs.",
            },
        ],
        [
            ["--symbols-path=SYMBOLS_PATH"],
            {
                "dest": "symbols_path",
                "help": "absolute path to directory containing breakpad "
                "symbols, or the url of a zip file containing symbols.",
            },
        ],
        [
            ["--tag=TAG"],
            {
                "dest": "tag",
                "help": "Subset of tests to run (local, remote).",
            },
        ],
    ]
    + copy.deepcopy(testing_config_options)
    + copy.deepcopy(code_coverage_config_options)
)


class TelemetryTests(TestingMixin, VCSToolsScript, CodeCoverageMixin):
    def __init__(
        self,
        config_options=None,
        all_actions=None,
        default_actions=None,
        *args,
        **kwargs
    ):
        config_options = config_options or telemetry_tests_config_options
        actions = [
            "clobber",
            "download-and-extract",
            "create-virtualenv",
            "install",
            "run-tests",
            "uninstall",
        ]

        super(TelemetryTests, self).__init__(
            config_options=config_options,
            all_actions=all_actions or actions,
            default_actions=default_actions or actions,
            *args,
            **kwargs
        )

        # Code which runs in automation has to include the following properties
        self.binary_path = self.config.get("binary_path")
        self.installer_path = self.config.get("installer_path")
        self.installer_url = self.config.get("installer_url")
        self.test_packages_url = self.config.get("test_packages_url")
        self.test_url = self.config.get("test_url")
        self.disable_fission = self.config.get("disable_fission")

        if not self.test_url and not self.test_packages_url:
            self.fatal("You must use --test-url, or --test-packages-url")

    @PreScriptAction("create-virtualenv")
    def _pre_create_virtualenv(self, action):
        abs_dirs = self.query_abs_dirs()

        requirements = os.path.join(
            abs_dirs["abs_test_install_dir"],
            "config",
            "telemetry_tests_requirements.txt",
        )
        self.register_virtualenv_module(requirements=[requirements], two_pass=True)

    def query_abs_dirs(self):
        if self.abs_dirs:
            return self.abs_dirs

        abs_dirs = super(TelemetryTests, self).query_abs_dirs()

        abs_test_install_dir = os.path.join(abs_dirs["abs_work_dir"], "tests")

        dirs = {
            "abs_test_install_dir": abs_test_install_dir,
            "abs_telemetry_dir": os.path.join(
                abs_test_install_dir, "telemetry", "marionette"
            ),
            "abs_blob_upload_dir": os.path.join(
                abs_dirs["abs_work_dir"], "blobber_upload_dir"
            ),
        }

        for key in dirs:
            if key not in abs_dirs:
                abs_dirs[key] = dirs[key]

        self.abs_dirs = abs_dirs

        return self.abs_dirs

    def run_test(self, binary_path, env=None, marionette_port=2828):
        """All required steps for running the tests against an installer."""
        dirs = self.query_abs_dirs()

        # Import the harness to retrieve the location of the cli scripts
        import telemetry_harness

        cmd = [
            self.query_python_path(),
            os.path.join(os.path.dirname(telemetry_harness.__file__), self.cli_script),
            "--binary",
            binary_path,
            "--address",
            "localhost:{}".format(marionette_port),
            # Resource files to serve via local webserver
            "--server-root",
            os.path.join(dirs["abs_telemetry_dir"], "harness", "www"),
            # Use the work dir to get temporary data stored
            "--workspace",
            dirs["abs_work_dir"],
            # logging options
            "--gecko-log=-",  # output from the gecko process redirected to stdout
            "--log-raw=-",  # structured log for output parser redirected to stdout
            # additional reports helpful for Jenkins and inpection via Treeherder
            "--log-html",
            os.path.join(dirs["abs_blob_upload_dir"], "report.html"),
            "--log-xunit",
            os.path.join(dirs["abs_blob_upload_dir"], "report.xml"),
            # Enable tracing output to log transmission protocol
            "-vv",
        ]

        # Symbols for crash reports
        if self.symbols_path:
            cmd.extend(["--symbols-path", self.symbols_path])

        if self.disable_fission:
            cmd.append("--disable-fission")
        cmd.extend(["--setpref={}".format(p) for p in self.config["extra_prefs"]])

        if not self.config["e10s"]:
            cmd.append("--disable-e10s")

        parser = StructuredOutputParser(
            config=self.config, log_obj=self.log_obj, strict=False
        )

        # Add the default tests to run
        tests = [
            os.path.join(dirs["abs_telemetry_dir"], "tests", test)
            for test in self.default_tests
        ]
        cmd.extend(tests)

        # Set further environment settings
        env = env or self.query_env()
        env.update({"MINIDUMP_SAVE_PATH": dirs["abs_blob_upload_dir"]})
        if self.query_minidump_stackwalk():
            env.update({"MINIDUMP_STACKWALK": self.minidump_stackwalk_path})
        env["RUST_BACKTRACE"] = "1"
        env["MOZ_IGNORE_NSS_SHUTDOWN_LEAKS"] = "1"

        # Causes Firefox to crash when using non-local connections.
        env["MOZ_DISABLE_NONLOCAL_CONNECTIONS"] = "1"

        # If code coverage is enabled, set GCOV_PREFIX env variable
        if self.config.get("code_coverage"):
            env["GCOV_PREFIX"] = self.gcov_dir

        return_code = self.run_command(
            cmd,
            cwd=dirs["abs_work_dir"],
            output_timeout=1000,
            output_parser=parser,
            env=env,
        )

        tbpl_status, log_level, _ = parser.evaluate_parser(return_code)
        self.record_status(tbpl_status, level=log_level)

        return return_code

    @PreScriptAction("run-tests")
    def _pre_run_tests(self, action):
        if not self.installer_path and not self.installer_url:
            self.critical(
                "Please specify an installer via --installer-path or --installer-url."
            )
            sys.exit(1)

    def run_tests(self):
        """Run all the tests"""
        return self.run_test(
            binary_path=self.binary_path,
            env=self.query_env(),
        )


class TelemetryClientTests(TelemetryTests):
    cli_script = "runtests.py"
    default_tests = [
        os.path.join("client", "manifest.ini"),
        os.path.join("unit", "manifest.ini"),
    ]


if __name__ == "__main__":
    myScript = TelemetryClientTests()
    myScript.run_and_exit()
