Fastfile

default_platform(:ios)

desc "Runs the unit tests to ensure the build is working"
lane :test do
  scan(scheme: ENV["TEST_SCHEME"], devices: ["iPhone SE"], clean: true)
end

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

  UI.message "Fetching latest tag"

  # Fetch the latest tag that would have just been added

  # 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

  UI.success "--- Found latest tag version: #{latest_version} ---"

  UI.message "Extracting Release Notes from 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

  UI.message "Release notes for v#{latest_version} found!"

  UI.message "Bumping Podspec Version"

  # Get the current commit sha to keep as backup in case the next commits have already previously finished
  commit_sha = last_git_commit[:commit_hash]

  # Update the Podspec version and push to the repo
  ENV["PODSPEC_PATHS"].split(",").each do |podspec|
    podspec_version = version_get_podspec(path: "./#{podspec}")
    if podspec_version != latest_version
      UI.message "Podspec version was #{podspec_version}. Updating Podspec version"
      version_bump_podspec(path: "./#{podspec}", version_number: latest_version)
      commit = commit_file(file_path: "#{podspec}", commit_message: "Bumped Podspec Version to v#{latest_version} [skip ci]")
      commit_sha = commit[:json]["commit"]["sha"]
    end
  end

  UI.message "Podspec version bumped!"

  UI.message "Bumping framework version"

  # Update and push framework version number if the current version doesn't match
  ENV["FRAMEWORK_PLIST_PATHS"].split(",").each do |framework_path|
    framework_version = get_info_plist_value(path: "./#{framework_path}", key: "CFBundleShortVersionString")
    if framework_version != latest_version
      UI.message "Framework version was #{framework_version}. Updating framework version"
      set_info_plist_value(path: "./#{framework_path}", key: "CFBundleShortVersionString", value: latest_version)
      commit = commit_file(file_path: "#{framework_path}", commit_message: "Bumped Framework Version to v#{latest_version} [skip ci]")
      commit_sha = commit[:json]["commit"]["sha"]
    end
  end

  UI.message "Framework version bumped!"

  UI.message "Pushing new tag to GitHub"

  # Create a new tag and commit it against the last commit
  push_new_tag(tag: latest_version, commit_sha: commit_sha)

  UI.message "Uploading to GitHub Releases"

  # Publish the Release on GitHub
  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)

  UI.message "Pushing new version to CocoaPods trunk"

  # Publish to CocoaPods trunk (This will fall-through if this release has previously been pushed)
  ENV["PODSPEC_PATHS"].split(",").each do |podspec|
    begin
      pod_push(path: "./#{podspec}", use_bundle_exec: true, allow_warnings: true)
    rescue => ex
      UI.error(ex)
    end
  end
  
end

desc "Using the GitHub Web API, commit the local contents of a file to main via a bot account"
lane :commit_file do |options|
  file_path = options[:file_path]
  message = options[:commit_message]

  # Fetch the file so we can extract the sha
  result = Fastlane::Actions::GithubApiAction.run(
    server_url: "https://api.github.com",
    api_token: ENV["GITHUB_TOKEN"],
    path: "/repos/#{ENV["REPO_PATH"]}/contents/#{file_path}",
    error_handlers: {
      '*' => proc do |result|
        UI.error("GitHub responded with #{result[:status]}:#{result[:body]}")
      end
    }
  )

  # Check the sha value was returned
  sha = result[:json]["sha"]
  if !sha 
    UI.error("Was unable to find sha value for #{file_path}")
  end

  # Encode the content as base 64
  content = Base64.encode64(File.read("../#{file_path}"))
  author = {"name": "XD-CI", email: ENV["AUTHOR_EMAIL"]}

  # Upload the local copy of that file back up
  result = Fastlane::Actions::GithubApiAction.run(
    server_url: "https://api.github.com",
    api_token: ENV["GITHUB_TOKEN"],
    http_method: "PUT",
    path: "/repos/#{ENV["REPO_PATH"]}/contents/#{file_path}",
    body: {"message": message, "sha": sha, "content": content, "author": author, "committer": author},
    error_handlers: {
      '*' => proc do |result|
        UI.error("GitHub responded with #{result[:status]}:#{result[:body]}")
      end
    }
  )

  result
end

desc "Uploads a new tag to GitHub against the provided sha"
lane :push_new_tag do |options|
  tag = options[:tag]
  commit_sha = options[:commit_sha]

  # Now that all of the new tag versions have been pushed, tag the latest commit
  tag_message = "Release v#{tag}"
  tagger = {"name": "XD-CI", email: ENV["AUTHOR_EMAIL"]}

  Fastlane::Actions::GithubApiAction.run(
    server_url: "https://api.github.com",
    api_token: ENV["GITHUB_TOKEN"],
    http_method: "POST",
    path: "/repos/#{ENV["REPO_PATH"]}/git/tags",
    body: {"message": tag_message, "tag": tag, "object": commit_sha, "type": "commit", "tagger": tagger},
    error_handlers: {
      '*' => proc do |result|
        UI.error("GitHub responded with #{result[:status]}:#{result[:body]}")
      end
    }
  )

end