# Copyright 2015 The Chromium 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
from string import Template


class CIPDApi(recipe_api.RecipeApi):
    """CIPDApi provides support for CIPD."""

    def __init__(self, *args, **kwargs):
        super(CIPDApi, self).__init__(*args, **kwargs)
        self._cipd_credentials = None
    
    def set_service_account_credentials(self, path):
        self._cipd_credentials = path

    @property
    def default_bot_service_account_credentials(self):
        return '/creds/service_accounts/service-account-cipd-builder.json'

    def platform_suffix(self):
        """Use to get full package name that is platform indepdent.

        Example:
          >>> 'my/package/%s' % api.cipd.platform_suffix()
          'my/package/linux-amd64'
        """
        return '%s-%s' % (
            self.m.platform.name.replace('win', 'windows'),
            {
                32: '386',
                64: 'amd64',
            }[self.m.platform.bits],
        )

    def build(self, input_dir, output_package, package_name, install_mode=None):
        assert not install_mode or install_mode in ['copy', 'symlink']

        return self.m.step(
            'build %s' % self.m.path.basename(package_name),
            [
                'cipd',
                'pkg-build',
                '--in', input_dir,
                '--name', package_name,
                '--out', output_package,
                '--json-output', self.m.json.output(),
            ] + (
                ['--install-mode', install_mode] if install_mode else []
            ),
            step_test_data=lambda: self.test_api.example_build(package_name)
        )

    def register(self, package_name, package_path, refs=None, tags=None):
        cmd = [
            'cipd',
            'pkg-register', package_path,
            '--json-output', self.m.json.output(),
        ]
        if self._cipd_credentials:
            cmd.extend(['--service-account-json', self._cipd_credentials])
        if refs:
            for ref in refs:
                cmd.extend(['--ref', ref])
        if tags:
            for tag, value in sorted(tags.items()):
                cmd.extend(['--tag', '%s:%s' % (tag, value)])
        return self.m.step(
            'register %s' % package_name,
            cmd,
            step_test_data=lambda: self.test_api.example_register(package_name)
        )

    def create(self, pkg_def, refs=None, tags=None):
        """Creates a package based on YAML package definition file.

        This builds and uploads the package in one step.
        """
        cmd = [
            'cipd'
            'create',
            '--pkg-def', pkg_def,
            '--json-output', self.m.json.output(),
        ]
        if self._cipd_credentials:
            cmd.extend(['--service-account-json', self._cipd_credentials])
        if refs:
            for ref in refs:
                cmd.extend(['--ref', ref])
        if tags:
            for tag, value in sorted(tags.items()):
                cmd.extend(['--tag', '%s:%s' % (tag, value)])
        return self.m.step('create %s' % self.m.path.basename(pkg_def), cmd)

    def ensure(self, root, packages):
        """Ensures that packages are installed in a given root dir.

        packages must be a mapping from package name to its version, where
          * name must be for right platform (see also ``platform_suffix``),
          * version could be either instance_id, or ref, or unique tag.

        If installing a package requires credentials, call
        ``set_service_account_credentials`` before calling this function.
        """
        package_list = ['%s %s' % (name, version)
                        for name, version in sorted(packages.items())]
        list_data = self.m.raw_io.input('\n'.join(package_list))
        cmd = [
            'cipd',
            'ensure',
            '--root', root,
            '--list', list_data,
            '--json-output', self.m.json.output(),
        ]
        if self._cipd_credentials:
            cmd.extend(['--service-account-json', self._cipd_credentials])
        return self.m.step(
            'ensure_installed', cmd,
            step_test_data=lambda: self.test_api.example_ensure(packages)
        )

    def set_tag(self, package_name, version, tags):
        cmd = [
            'cipd',
            'set-tag', package_name,
            '--version', version,
            '--json-output', self.m.json.output(),
        ]
        if self._cipd_credentials:
            cmd.extend(['--service-account-json', self._cipd_credentials])
        for tag, value in sorted(tags.items()):
            cmd.extend(['--tag', '%s:%s' % (tag, value)])

        return self.m.step(
            'cipd set-tag %s' % package_name,
            cmd,
            step_test_data=lambda: self.test_api.example_set_tag(
                package_name, version
            )
        )

    def set_ref(self, package_name, version, refs):
        cmd = [
            'cipd',
            'set-ref', package_name,
            '--version', version,
            '--json-output', self.m.json.output(),
        ]
        if self._cipd_credentials:
            cmd.extend(['--service-account-json', self._cipd_credentials])
        for r in refs:
            cmd.extend(['--ref', r])

        return self.m.step(
            'cipd set-ref %s' % package_name,
            cmd,
            step_test_data=lambda: self.test_api.example_set_ref(
                package_name, version
            )
        )

    def search(self, package_name, tag):
        assert ':' in tag, 'tag must be in a form "k:v"'

        cmd = [
            'cipd',
            'search', package_name,
            '--tag', tag,
            '--json-output', self.m.json.output(),
        ]
        if self._cipd_credentials:
            cmd.extend(['--service-account-json', self._cipd_credentials])

        return self.m.step(
            'cipd search %s %s' % (package_name, tag),
            cmd,
            step_test_data=lambda: self.test_api.example_search(package_name)
        )

    def describe(self, package_name, version,
                 test_data_refs=None, test_data_tags=None):
        cmd = [
            'cipd',
            'describe', package_name,
            '--version', version,
            '--json-output', self.m.json.output(),
        ]
        if self._cipd_credentials:
            cmd.extend(['--service-account-json', self._cipd_credentials])

        return self.m.step(
            'cipd describe %s' % package_name,
            cmd,
            step_test_data=lambda: self.test_api.example_describe(
                package_name, version,
                test_data_refs=test_data_refs,
                test_data_tags=test_data_tags
            )
        )