require "shellwords"

default_platform(:ios)

APP_IDENTIFIER = "net.buzzert.sybil2"
SCHEME = "Sybil"
TEAM_ID = "DQQH5H6GBD"
PROFILE_NAME = "Sybil AppStore CI"
CI_KEYCHAIN_NAME = "sybil_ci_keychain"
CI_KEYCHAIN_PASSWORD = "sybil-ci-keychain-password"
CI_KEYCHAIN_DB_PATH = File.expand_path("~/Library/Keychains/#{CI_KEYCHAIN_NAME}-db")
IOS_ROOT = File.expand_path("..", __dir__)
PROJECT_FILE = File.join(IOS_ROOT, "Sybil.xcodeproj")
PROJECT_SPEC = File.join(IOS_ROOT, "project.yml")

def present?(value)
  !value.to_s.strip.empty?
end

def ci?
  present?(ENV["CI"])
end

def release_version
  tag = ENV["SYBIL_VERSION_TAG"]
  tag = ENV["GITHUB_REF_NAME"] if !present?(tag)
  tag = ENV["GITHUB_REF"].to_s.sub(%r{\Arefs/tags/}, "") if !present?(tag)
  tag = sh("git describe --tags --abbrev=0").strip if !present?(tag)
  match = tag.to_s.match(%r{\Arelease/ios/v(\d+\.\d+\.\d+)\z})

  unless match
    UI.user_error!("Release tag must look like release/ios/v1.2.3; got #{tag.inspect}")
  end

  match[1]
end

# App Store Connect requires CFBundleVersion to be unique and strictly
# increasing app-wide (not just per marketing version), so we derive it from
# the monotonic CI run number rather than querying TestFlight (that query can
# lag behind builds still processing and hand back a colliding value).
def build_number
  value = present?(ENV["SYBIL_BUILD_NUMBER"]) ? ENV["SYBIL_BUILD_NUMBER"] : ENV["GITHUB_RUN_NUMBER"]

  unless value.to_s.match?(/\A\d+\z/)
    UI.user_error!("Build number must come from SYBIL_BUILD_NUMBER/GITHUB_RUN_NUMBER; got #{value.inspect}")
  end

  value.to_i
end

platform :ios do
  private_lane :app_store_api_key do
    app_store_connect_api_key(
      key_id: ENV.fetch("APP_STORE_CONNECT_KEY_ID"),
      issuer_id: ENV.fetch("APP_STORE_CONNECT_ISSUER_ID"),
      key_content: ENV.fetch("APP_STORE_CONNECT_KEY_CONTENT"),
      is_key_content_base64: true
    )
  end

  # CI has no login keychain, so create a dedicated throwaway one for match to
  # import the distribution cert into. The runner's launchd job sets
  # SessionCreate, so add_to_search_list actually makes it visible to xcodebuild.
  private_lane :prepare_ci_keychain do
    next unless ci?

    delete_keychain(name: CI_KEYCHAIN_NAME) if File.file?(CI_KEYCHAIN_DB_PATH)
    create_keychain(
      name: CI_KEYCHAIN_NAME,
      password: CI_KEYCHAIN_PASSWORD,
      unlock: true,
      timeout: 3600,
      add_to_search_list: true
    )

    ENV["MATCH_KEYCHAIN_NAME"] = CI_KEYCHAIN_NAME
    ENV["MATCH_KEYCHAIN_PASSWORD"] = CI_KEYCHAIN_PASSWORD
  end

  private_lane :sync_signing do |options|
    match(
      type: "appstore",
      readonly: options.fetch(:readonly),
      app_identifier: APP_IDENTIFIER,
      team_id: TEAM_ID,
      profile_name: PROFILE_NAME,
      git_url: ENV.fetch("MATCH_GIT_URL"),
      git_branch: "master",
      git_full_name: "Sybil Release Bot",
      git_user_email: "james.magahern@me.com",
      api_key: options.fetch(:api_key)
    )
  end

  desc "Create or update match signing assets"
  lane :setup_signing do
    sync_signing(api_key: app_store_api_key, readonly: false)
  end

  desc "Build and upload to TestFlight"
  lane :beta do
    prepare_ci_keychain

    api_key = app_store_api_key

    sh("xcodegen", "--spec", PROJECT_SPEC)

    increment_version_number(version_number: release_version, xcodeproj: PROJECT_FILE)
    increment_build_number(build_number: build_number, xcodeproj: PROJECT_FILE)

    sync_signing(api_key: api_key, readonly: true)

    build_app(
      project: PROJECT_FILE,
      scheme: SCHEME,
      export_method: "app-store",
      codesigning_identity: "Apple Distribution",
      xcargs: [
        "DEVELOPMENT_TEAM=#{TEAM_ID.shellescape}",
        "CODE_SIGN_STYLE=Manual",
        "CODE_SIGN_IDENTITY=Apple\\ Distribution",
        "PROVISIONING_PROFILE_SPECIFIER=#{PROFILE_NAME.shellescape}"
      ].join(" "),
      export_options: {
        signingStyle: "manual",
        teamID: TEAM_ID,
        provisioningProfiles: {
          APP_IDENTIFIER => PROFILE_NAME
        }
      }
    )

    upload_to_testflight(
      api_key: api_key,
      skip_waiting_for_build_processing: true
    )
  end
end