// This build configuration requires the following to be installed:
// Git, Xcode, XCode Command-line Tools, Cocoapods, Xcbeautify, Xcresultparser, pip

// Log a bunch of version information to make it easier for debugging
local version_info = {
  name: 'Version Information',
  commands: [
    'git --version',
    'LANG=en_US.UTF-8 pod --version',
    'xcodebuild -version'
  ]
};

// Intentionally doing a depth of 2 as libSession-util has it's own submodules (and libLokinet likely will as well)
local custom_clone = {
  name: 'Clone Repo',
  environment: { CLONE_KEY: { from_secret: 'CLONE_KEY' } },
  commands: [
    |||
      if [ -z "$CLONE_KEY" ]; then
        echo -e "\n\n\n\e[31;1mUnable to checkout repo: CLONE_KEY not set\e[0m"
        exit 1
      fi
    |||,
    'mkdir -p $HOME/.ssh && touch $HOME/.ssh/config && touch $HOME/.ssh/known_hosts',
    'echo "$CLONE_KEY" > $HOME/.ssh/id_ed25519_drone_ci_deploy',
    'chmod 600 $HOME/.ssh/config $HOME/.ssh/known_hosts $HOME/.ssh/id_ed25519_drone_ci_deploy',
    'ssh-keyscan -t ed25519 github.com >> $HOME/.ssh/known_hosts',
    'export GIT_SSH_COMMAND="ssh -i $HOME/.ssh/id_ed25519_drone_ci_deploy -F $HOME/.ssh/config -o UserKnownHostsFile=$HOME/.ssh/known_hosts"',
    'git -c init.defaultBranch=master init',
    'git remote add origin $DRONE_GIT_SSH_URL',
    'git fetch --depth=1 origin +$DRONE_COMMIT_REF',
    'git checkout $DRONE_COMMIT -b $DRONE_BRANCH',
    'git submodule update --init --recursive --depth=2 --jobs=4'
  ]
};

// cmake options for static deps mirror
local ci_dep_mirror(want_mirror) = (if want_mirror then ' -DLOCAL_MIRROR=https://oxen.rocks/deps ' else '');

// Cocoapods
// 
// Unfortunately Cocoapods has a dumb restriction which requires you to use UTF-8 for the
// 'LANG' env var so we need to work around the with https://github.com/CocoaPods/CocoaPods/issues/6333
local install_cocoapods = {
  name: 'Install CocoaPods',
  commands: ['
    LANG=en_US.UTF-8 pod install || rm -rf ./Pods && LANG=en_US.UTF-8 pod install
  '],
  depends_on: [
    'Load CocoaPods Cache'
  ]
};

// Load from the cached CocoaPods directory (to speed up the build)
local load_cocoapods_cache = {
  name: 'Load CocoaPods Cache',
  commands: [
    |||
      LOOP_BREAK=0
      while test -e /Users/drone/.cocoapods_cache.lock; do
          sleep 1
          LOOP_BREAK=$((LOOP_BREAK + 1))

          if [[ $LOOP_BREAK -ge 600 ]]; then
            rm -f /Users/drone/.cocoapods_cache.lock
          fi
      done
    |||,
    'touch /Users/drone/.cocoapods_cache.lock',
    |||
      if [[ -d /Users/drone/.cocoapods_cache ]]; then
        cp -r /Users/drone/.cocoapods_cache ./Pods
      fi
    |||,
    'rm -f /Users/drone/.cocoapods_cache.lock'
  ],
  depends_on: [
    'Clone Repo'
  ]
};

// Override the cached CocoaPods directory (to speed up the next build)
local update_cocoapods_cache(depends_on) = {
  name: 'Update CocoaPods Cache',
  commands: [
    |||
      LOOP_BREAK=0
      while test -e /Users/drone/.cocoapods_cache.lock; do
          sleep 1
          LOOP_BREAK=$((LOOP_BREAK + 1))

          if [[ $LOOP_BREAK -ge 600 ]]; then
            rm -f /Users/drone/.cocoapods_cache.lock
          fi
      done
    |||,
    'touch /Users/drone/.cocoapods_cache.lock',
    |||
      if [[ -d ./Pods ]]; then
        rm -rf /Users/drone/.cocoapods_cache
        cp -r ./Pods /Users/drone/.cocoapods_cache
      fi
    |||,
    'rm -f /Users/drone/.cocoapods_cache.lock'
  ],
  depends_on: depends_on,
};

[
  // Unit tests (PRs only)
  {
    kind: 'pipeline',
    type: 'exec',
    name: 'Unit Tests',
    platform: { os: 'darwin', arch: 'arm64' },
    trigger: { event: { exclude: [ 'push' ] } },
    clone: { disable: true },
    steps: [
      version_info,
      custom_clone,
      load_cocoapods_cache,
      install_cocoapods,
      {
        name: 'Pre-Boot Test Simulator',
        commands: [
          'mkdir -p build/artifacts',
          'echo "Test-iPhone14-${DRONE_COMMIT:0:9}-${DRONE_BUILD_EVENT}" > ./build/artifacts/device_name',
          'xcrun simctl create "$(cat ./build/artifacts/device_name)" com.apple.CoreSimulator.SimDeviceType.iPhone-14',
          'echo $(xcrun simctl list devices | grep -m 1 $(cat ./build/artifacts/device_name) | grep -E -o -i "([0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12})") > ./build/artifacts/sim_uuid',
          'xcrun simctl boot $(cat ./build/artifacts/sim_uuid)',
          'echo "Pre-booting simulator complete: $(xcrun simctl list | sed "s/^[[:space:]]*//" | grep -o ".*$(cat ./build/artifacts/sim_uuid).*")"',
        ]
      },
      {
        name: 'Build and Run Tests',
        commands: [
          'NSUnbufferedIO=YES set -o pipefail && xcodebuild test -workspace Session.xcworkspace -scheme Session -derivedDataPath ./build/derivedData -resultBundlePath ./build/artifacts/testResults.xcresult -parallelizeTargets -destination "platform=iOS Simulator,id=$(cat ./build/artifacts/sim_uuid)" -parallel-testing-enabled NO -test-timeouts-enabled YES -maximum-test-execution-time-allowance 10 -collect-test-diagnostics never 2>&1 | xcbeautify --is-ci',
        ],
        depends_on: [
          'Pre-Boot Test Simulator',
          'Install CocoaPods'
        ],
      },
      {
        name: 'Unit Test Summary',
        commands: [
          |||
            if [[ -d ./build/artifacts/testResults.xcresult ]]; then
              xcresultparser --output-format cli --failed-tests-only ./build/artifacts/testResults.xcresult
            else
              echo -e "\n\n\n\e[31;1mUnit test results not found\e[0m"
            fi
          |||,
        ],
        depends_on: ['Build and Run Tests'],
        when: {
          status: ['failure', 'success']
        }
      },
      {
        name: 'Delete Test Simulator',
        commands: [
          |||
            if [[ -f ./build/artifacts/sim_uuid ]]; then
              xcrun simctl delete $(cat ./build/artifacts/sim_uuid)
            fi
          |||,
        ],
        depends_on: [
          'Build and Run Tests',
        ],
        when: {
          status: ['failure', 'success']
        }
      },
      update_cocoapods_cache(['Build and Run Tests']),
      {
        name: 'Install Codecov CLI',
        commands: [
          'pip3 install codecov-cli',
          '~/Library/Python/3.9/bin/codecovcli --version'
        ],
      },
      {
        name: 'Convert xcresult to xml',
        commands: [
          'xcresultparser --output-format cobertura ./build/artifacts/testResults.xcresult > ./build/artifacts/coverage.xml',
        ],
        depends_on: ['Build and Run Tests']
      },
      {
        name: 'Upload coverage to Codecov',
        commands: [
          '~/Library/Python/3.9/bin/codecovcli upload-process --fail-on-error -f ./build/artifacts/coverage.xml',
        ],
        depends_on: [
          'Convert xcresult to xml',
          'Install Codecov CLI'
        ]
      },
    ],
  },
  // Validate build artifact was created by the direct branch push (PRs only)
  {
    kind: 'pipeline',
    type: 'exec',
    name: 'Check Build Artifact Existence',
    platform: { os: 'darwin', arch: 'arm64' },
    trigger: { event: { exclude: [ 'push' ] } },
    clone: { disable: true },
    steps: [
      custom_clone,
      {
        name: 'Poll for build artifact existence',
        commands: [
          './Scripts/drone-upload-exists.sh'
        ],
        depends_on: [
          'Clone Repo'
        ]
      }
    ]
  },
  // Simulator build (non-PRs only)
  {
    kind: 'pipeline',
    type: 'exec',
    name: 'Simulator Build',
    platform: { os: 'darwin', arch: 'arm64' },
    trigger: { event: { exclude: [ 'pull_request' ] } },
    clone: { disable: true },
    steps: [
      version_info,
      custom_clone,
      load_cocoapods_cache,
      install_cocoapods,
      {
        name: 'Build',
        commands: [
          'mkdir build',
          'xcodebuild archive -workspace Session.xcworkspace -scheme Session -derivedDataPath ./build/derivedData -parallelizeTargets -configuration "App Store Release" -sdk iphonesimulator -archivePath ./build/Session_sim.xcarchive -destination "generic/platform=iOS Simulator" | xcbeautify --is-ci'
        ],
        depends_on: [
          'Install CocoaPods'
        ],
      },
      update_cocoapods_cache(['Build']),
      {
        name: 'Upload artifacts',
        environment: { SSH_KEY: { from_secret: 'SSH_KEY' } },
        commands: [
          './Scripts/drone-static-upload.sh'
        ],
        depends_on: [
          'Build'
        ]
      },
    ],
  },
]