Fastfile

default_platform(:ios)

before_all do |lane, options|
  if File.exist?('Podfile')
    cocoapods(silent: true)
  end
end

desc "Runs the unit tests to ensure the build is working"
lane :test do
  # Perform all of the unit tests in this project
  scan(scheme: ENV["TEST_SCHEME"], devices: ["iPhone 11 Pro"], prelaunch_simulator: true, clean: true)
end

desc "Cuts a new release and distributes it on CocoaPods and Carthage"
lane :release do

  # ---------------------------------------------------------------------
  # Fetch the new release version

  # We get the desired tag number from the Buildkite release message
  release_message = ENV["BUILDKITE_MESSAGE"]

  # See if we can extract the new version from the message
  latest_version = release_message.scan(/[vV]?(\d{1,3}\.\d{1,3}\.\d{1,3})/).last.first
  if !latest_version 
    UI.user_error! "--- ERROR: Was unable to find version number in build message. ---"
    next
  end

  # ---------------------------------------------------------------------
  # Load the matching entry from the CHANGELOG

  # Load the Release Notes from file, and throw an error if they weren't updated
  changelog_contents = File.read("../CHANGELOG.md")
  v = latest_version.split(".")
  release_notes = changelog_contents.scan(/#{v[0]}\.#{v[1]}\.#{v[2]}\ [Rr]elease\ [Nn]otes.*\n\=+\n([\s\S]*?)(\d{1,3}\.\d{1,3}\.\d{1,3}\ [Rr]elease\ [Nn]otes.*\n\=+\n|\Z)/).last
  if !release_notes 
    UI.user_error! "--- ERROR: Unable to find Release Notes entry for v#{latest_version} in CHANGELOG. ---"
    next
  end

  # ---------------------------------------------------------------------
  # Bump the version number in the Podspec and framework

  # Keep track if we need to push any changes
  needs_git_push = false

  # Update the Podspec version and push to the repo
  podspec_version = version_get_podspec(path: ENV["PODSPEC_PATH"])
  if podspec_version != latest_version
    version_bump_podspec(path: ENV["PODSPEC_PATH"], version_number: latest_version)
    git_commit(path: ENV["PODSPEC_PATH"], message: "Bumped Podspec version to v#{latest_version} [skip ci]")
    needs_git_push = true
  end

  # Update and push framework version number if the current version doesn't match
  framework_version = get_info_plist_value(path: ENV["FRAMEWORK_PLIST_PATH"], key: "CFBundleShortVersionString")
  if framework_version != latest_version
    set_info_plist_value(path: ENV["FRAMEWORK_PLIST_PATH"], key: "CFBundleShortVersionString", value: latest_version)
    git_commit(path: ENV["FRAMEWORK_PLIST_PATH"], message: "Bumped framework version to v#{latest_version} [skip ci]")
    needs_git_push = true
  end

  # If changes were made, push them to main
  if needs_git_push
    UI.message "Pushing bumped version changes to main branch"
    push_to_git_remote(remote_branch: "main", set_upstream: true)
  end 

  # ---------------------------------------------------------------------
  # Create a new version tag after the commit has completed

  # Create a new tag and commit it against the last commit
  if !git_tag_exists(tag: latest_version)
    add_git_tag(tag: latest_version)
    push_git_tags(tag: latest_version)
  end

  # ---------------------------------------------------------------------
  # Push a new release to GitHub releases

  # Publish the Release on GitHub
  release = get_github_release(url:ENV["REPO_PATH"], version: latest_version)
  if release == nil
    set_github_release(repository_name: ENV["REPO_PATH"], 
                        api_token: ENV["GITHUB_TOKEN"],
                        name: "v#{latest_version}",
                        tag_name: latest_version,
                        description: release_notes.first)
  end

  # ---------------------------------------------------------------------
  # Publish to CocoaPods trunk

  begin 
    pod_push(use_bundle_exec: true, allow_warnings: true)
  rescue => ex
    UI.error(ex)
  end

end