# 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/.
---
version: 1
reporting: checks-v1
policy:
    allowComments: collaborators
    pullRequests: public
tasks:
    - $let:
          trustDomain: app-services
          isPullRequest:
              $eval: 'tasks_for == "github-pull-request" || tasks_for == "github-issue-comment"'
          pullRequestAction:
              $if: 'tasks_for == "github-pull-request"'
              then: ${event.action}
              else: 'UNDEFINED'
          issueCommentAction:
              $if: 'tasks_for == "github-issue-comment"'
              then: ${event.action}
              else: 'UNDEFINED'
          ownTaskId:
              $if: '"github" in tasks_for'
              then: {$eval: as_slugid("decision_task")}
              else:
                  $if: 'tasks_for == "cron"'
                  then: '${ownTaskId}'
      in:
          $let:
              # Github events have this stuff in different places
              ownerEmail:
                  $switch:
                      'tasks_for == "github-push"': '${event.pusher.email}'
                      isPullRequest: '${event.pull_request.user.login}@users.noreply.github.com'
                      'tasks_for in ["cron", "action"]': '${tasks_for}@noreply.mozilla.org'
              baseRepoUrl:
                  $switch:
                      'tasks_for == "github-push"': '${event.repository.html_url}'
                      isPullRequest: '${event.pull_request.base.repo.html_url}'
                      'tasks_for in ["cron", "action"]': '${repository.url}'
              repoUrl:
                  $switch:
                      'tasks_for == "github-push"': '${event.repository.html_url}'
                      isPullRequest: '${event.pull_request.head.repo.html_url}'
                      'tasks_for in ["cron", "action"]': '${repository.url}'
              project:
                  $switch:
                      'tasks_for == "github-push"': '${event.repository.name}'
                      isPullRequest: '${event.pull_request.head.repo.name}'
                      'tasks_for in ["cron", "action"]': '${repository.project}'
              head_branch:
                  $switch:
                      'tasks_for == "github-push"': ${event.ref}
                      isPullRequest: ${event.pull_request.head.ref}
                      'tasks_for in ["cron", "action"]': '${push.branch}'
              head_sha:
                  $switch:
                    'tasks_for == "github-push"': '${event.after}'
                    isPullRequest: '${event.pull_request.head.sha}'
                    'tasks_for in ["cron", "action"]': '${push.revision}'
          in:
              $if: >
                tasks_for in ["action", "cron"]
                || (isPullRequest && pullRequestAction in ["opened", "reopened", "synchronize"])
                || (isPullRequest && issueCommentAction in ["created", "edited"])
                || (tasks_for == "github-push" && (head_branch == "refs/heads/main" || head_branch[:19] == "refs/heads/release-"))
              then:
                  $let:
                      level:
                          $if: 'tasks_for in ["github-push", "action", "cron"] && repoUrl == "https://github.com/mozilla/application-services"'
                          then: '3'
                          else: '1'
                      short_head_branch:
                          $if: 'head_branch[:11] == "refs/heads/"'
                          then: {$eval: 'head_branch[11:]'}
                  in:
                    $mergeDeep:
                        - $if: 'tasks_for != "action"'
                          then:
                              taskId: '${ownTaskId}'
                        - taskGroupId:
                              $if: 'tasks_for == "action"'
                              then:
                                  '${action.taskGroupId}'
                              else:
                                  '${ownTaskId}'  # same as taskId; this is how automation identifies a decision task
                          schedulerId: '${trustDomain}-level-${level}'
                          created: {$fromNow: ''}
                          deadline: {$fromNow: '1 day'}
                          expires: {$fromNow: '1 year 1 second'}  # 1 second so artifacts expire first, despite rounding errors
                          metadata:
                              $merge:
                                  - owner: "${ownerEmail}"
                                    source: '${repoUrl}/raw/${head_sha}/.taskcluster.yml'
                                  - $if: 'tasks_for in ["github-push", "github-pull-request", "github-issue-comment"]'
                                    then:
                                        name: "Decision Task (${tasks_for[7:]})" # strip out "github-" from tasks_for
                                        description: 'The task that creates all of the other tasks in the task graph'
                                    else:
                                        $if: 'tasks_for == "action"'
                                        then:
                                            name: "Action: ${action.title}"
                                            description: |
                                                ${action.description}

                                                Action triggered by clientID `${clientId}`
                                        else:
                                            name: "Decision Task for cron job ${cron.job_name}"
                                            description: 'Created by a [cron task](https://firefox-ci-tc.services.mozilla.com/tasks/${cron.task_id})'
                          provisionerId: "app-services-${level}"
                          workerType: "decision"
                          tags:
                              $if: 'tasks_for in ["github-push", "github-pull-request", "github-issue-comment"]'
                              then:
                                  kind: decision-task
                              else:
                                  $if: 'tasks_for == "action"'
                                  then:
                                      kind: 'action-callback'
                                  else:
                                      $if: 'tasks_for == "cron"'
                                      then:
                                          kind: cron-task
                          routes:
                            $flattenDeep:
                              - checks
                              # We check for not pull-request instead of level 3 to support `staging-application-services`.
                              # This is ok as ${project} uniquely identifies the repo within this trust domain, and each
                              # project only has scopes to its own index namespace, so namespace collisions shouldn't happen.
                              - $if: '!isPullRequest'
                                then:
                                    - $if: 'tasks_for == "github-push"'
                                      then:
                                          - index.project.${project}.v2.branch.${short_head_branch}.latest.taskgraph.decision
                                          - index.project.${project}.v2.branch.${short_head_branch}.revision.${head_sha}.taskgraph.decision
                                          - index.${trustDomain}.v2.${project}.revision.${head_sha}.taskgraph.decision
                                    - $if: 'tasks_for == "cron"'
                                      then:
                                          # cron context provides ${head_branch} as a short one
                                          - index.project.${project}.v2.branch.${head_branch}.latest.taskgraph.decision-${cron.job_name}
                                          - index.project.${project}.v2.branch.${head_branch}.revision.${head_sha}.taskgraph.decision-${cron.job_name}
                                          - index.project.${project}.v2.branch.${head_branch}.revision.${head_sha}.taskgraph.cron.${ownTaskId}
                          scopes:
                              $if: 'tasks_for == "github-push"'
                              then:
                                  # `https://` is 8 characters so, ${repoUrl[8:]} is the repository without the protocol.
                                  - 'assume:repo:${repoUrl[8:]}:branch:${short_head_branch}'
                              else:
                                  $if: isPullRequest
                                  then:
                                      - 'assume:repo:github.com/${event.pull_request.base.repo.full_name}:pull-request'
                                  else:
                                      $if: 'tasks_for == "action"'
                                      then:
                                          # when all actions are hooks, we can calculate this directly rather than using a variable
                                          - '${action.repo_scope}'
                                      else:
                                          - 'assume:repo:${repoUrl[8:]}:cron:${cron.job_name}'
                          requires: all-completed
                          priority: lowest
                          retries: 5

                          payload:
                              env:
                                  # run-task uses these to check out the source; the inputs
                                  # to `mach taskgraph decision` are all on the command line.
                                  $merge:
                                      - APPSERVICES_BASE_REPOSITORY: '${baseRepoUrl}'
                                        APPSERVICES_HEAD_REPOSITORY: '${repoUrl}'
                                        APPSERVICES_HEAD_REF: '${head_branch}'
                                        APPSERVICES_HEAD_REV: '${head_sha}'
                                        APPSERVICES_PIP_REQUIREMENTS: taskcluster/requirements.txt
                                        APPSERVICES_REPOSITORY_TYPE: git
                                        REPOSITORIES: {$json: {appservices: "Application Services"}}
                                        ANDROID_SDK_ROOT: /builds/worker/android-sdk
                                        MOZ_FETCHES_DIR: /builds/worker/fetches
                                        TASKCLUSTER_CACHES: /builds/worker/checkouts
                                      - $if: 'tasks_for in ["github-pull-request"]'
                                        then:
                                            APPSERVICES_PULL_REQUEST_TITLE: '${event.pull_request.title}'
                                            APPSERVICES_PULL_REQUEST_NUMBER: '${event.pull_request.number}'
                                      - $if: 'tasks_for == "action"'
                                        then:
                                          ACTION_TASK_GROUP_ID: '${action.taskGroupId}'
                                          ACTION_TASK_ID: {$json: {$eval: 'taskId'}}
                                          ACTION_INPUT: {$json: {$eval: 'input'}}
                                          ACTION_CALLBACK: '${action.cb_name}'
                              cache:
                                  "${trustDomain}-level-${level}-checkouts-v1": /builds/worker/checkouts

                              features:
                                  taskclusterProxy: true
                                  chainOfTrust: true
                              # Note: This task is built server side without the context or tooling that
                              # exist in tree so we must hard code the hash
                              image:
                                  mozillareleases/taskgraph:decision-v11.2.4@sha256:eb53b1ca6b86b1344d61f55aab77b130048c0ae007eef181ec82eec327e91e07

                              maxRunTime: 1800

                              command:
                                  - /usr/local/bin/run-task
                                  - '--appservices-checkout=/builds/worker/checkouts/vcs'
                                  - '--task-cwd=/builds/worker/checkouts/vcs'
                                  - '--'
                                  - bash
                                  - -cx
                                  - $let:
                                      # Can't use $switch statement here, see https://github.com/json-e/json-e/issues/541
                                      extraArgs: 
                                        $if: 'tasks_for == "cron"'
                                        then: '${cron.quoted_args}'
                                        else:
                                            $if: 'tasks_for == "github-issue-comment" && event.taskcluster_comment == "ci full"'
                                            then: '--target-tasks-method=pr-full'
                                            else: ''
                                    in:
                                      $if: 'tasks_for == "action"'
                                      then: >
                                        ln -s /builds/worker/artifacts artifacts &&
                                        taskgraph action-callback
                                      else: >
                                        ln -s /builds/worker/artifacts artifacts &&
                                        taskgraph decision
                                        --pushlog-id='0'
                                        --pushdate='0'
                                        --project='${project}'
                                        --message=""
                                        --owner='${ownerEmail}'
                                        --level='${level}'
                                        --base-repository="$APPSERVICES_BASE_REPOSITORY"
                                        --head-repository="$APPSERVICES_HEAD_REPOSITORY"
                                        --head-ref="$APPSERVICES_HEAD_REF"
                                        --head-rev="$APPSERVICES_HEAD_REV"
                                        --repository-type="$APPSERVICES_REPOSITORY_TYPE"
                                        --tasks-for='${tasks_for}'
                                        ${extraArgs}
                              artifacts:
                                  'public':
                                      type: 'directory'
                                      path: '/builds/worker/artifacts'
                                      expires: {$fromNow: '1 year'}
                                  'public/docker-contexts':
                                      type: 'directory'
                                      path: '/builds/worker/checkouts/vcs/docker-contexts'
                                      # This needs to be at least the deadline of the
                                      # decision task + the docker-image task deadlines.
                                      # It is set to a week to allow for some time for
                                      # debugging, but they are not useful long-term.
                                      expires: {$fromNow: '7 day'}
                          extra:
                              $merge:
                                  - treeherder:
                                        $merge:
                                            - machine:
                                                  platform: gecko-decision
                                            - $if: 'tasks_for in ["github-push", "github-pull-request"]'
                                              then:
                                                  symbol: D
                                              else:
                                                  $if: 'tasks_for == "action"'
                                                  then:
                                                      groupName: 'action-callback'
                                                      groupSymbol: AC
                                                      symbol: "${action.symbol}"
                                  - $if: 'tasks_for == "action"'
                                    then:
                                        parent: '${action.taskGroupId}'
                                        action:
                                            name: '${action.name}'
                                            context:
                                                taskGroupId: '${action.taskGroupId}'
                                                taskId: {$eval: 'taskId'}
                                                input: {$eval: 'input'}
                                                clientId: {$eval: 'clientId'}
                                  - $if: 'tasks_for == "cron"'
                                    then:
                                        cron: {$json: {$eval: 'cron'}}
                                  - tasks_for: '${tasks_for}'
