require "fileutils"
require "shellwords"

default_platform(:ios)

APP_IDENTIFIER = "net.buzzert.sybil2"
SCHEME = "Sybil"
TEAM_ID = "DQQH5H6GBD"
PROFILE_NAME = "Sybil AppStore CI"
SIGNING_IDENTITY_NAME = "Apple Distribution: James Magahern (DQQH5H6GBD)"
SIGNING_IDENTITY_SHA1 = "6B74B268C4761720FB2051D01D8BB3E47B55D9F5"
CI_KEYCHAIN_DIR = "/private/var/lib/act_runner/Library/Keychains"
CI_LOGIN_KEYCHAIN = File.join(CI_KEYCHAIN_DIR, "login.keychain")
CI_LOGIN_KEYCHAIN_DB = "#{CI_LOGIN_KEYCHAIN}-db"
CI_KEYCHAIN_PASSWORD = "sybil-ci-keychain-password"
MATCH_BRANCH = "master"
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 release_version
  tag = ENV["SYBIL_VERSION_TAG"].to_s
  tag = ENV["GITHUB_REF_NAME"].to_s 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)
  version = tag.sub(%r{\Arelease/}, "").sub(/\Av/, "")

  unless version.match?(/\A\d+\.\d+\.\d+\z/)
    UI.user_error!("Release tag must look like v1.2.3; got #{tag.inspect}")
  end

  version
end

def ci_login_keychain_path
  return CI_LOGIN_KEYCHAIN_DB if ENV["CI"]

  candidates = [
    "/private/var/lib/act_runner/Library/Keychains/login.keychain-db",
    "/var/lib/act_runner/Library/Keychains/login.keychain-db",
    "/Users/runner/Library/Keychains/login.keychain-db",
    File.expand_path("~/Library/Keychains/login.keychain-db"),
    File.expand_path("~/Library/Keychains/login.keychain")
  ]
  existing_candidate = candidates.find { |path| File.file?(path) }
  return existing_candidate if existing_candidate

  keychains = sh("security list-keychains -d user", log: false).shellsplit
  keychains.find { |path| File.basename(path).start_with?("login.keychain") } || keychains.first || "login.keychain"
end

platform :ios do
  private_lane :cleanup_ci_signing_identity do
    next unless ENV["CI"]

    keychain_path = ENV["MATCH_KEYCHAIN_NAME"].to_s
    keychain_path = ci_login_keychain_path unless present?(keychain_path)

    sh("security delete-identity -Z #{SIGNING_IDENTITY_SHA1.shellescape} #{keychain_path.shellescape} || true", log: false)
  end

  private_lane :prepare_ci_keychain do
    next unless ENV["CI"]

    FileUtils.mkdir_p(CI_KEYCHAIN_DIR)
    unless File.file?(CI_LOGIN_KEYCHAIN_DB)
      sh("security create-keychain -p #{CI_KEYCHAIN_PASSWORD.shellescape} #{CI_LOGIN_KEYCHAIN.shellescape}", log: false)
    end

    ENV["MATCH_KEYCHAIN_NAME"] = ci_login_keychain_path
    ENV["MATCH_KEYCHAIN_PASSWORD"] = CI_KEYCHAIN_PASSWORD
    sh("security unlock-keychain -p #{CI_KEYCHAIN_PASSWORD.shellescape} #{ENV.fetch("MATCH_KEYCHAIN_NAME").shellescape}", log: false)
    sh("security set-keychain-settings -t 3600 #{ENV.fetch("MATCH_KEYCHAIN_NAME").shellescape}", log: false)
    sh("security login-keychain -s #{ENV.fetch("MATCH_KEYCHAIN_NAME").shellescape} || true", log: false)
    sh("security list-keychains -d user -s #{ENV.fetch("MATCH_KEYCHAIN_NAME").shellescape}", log: false)
    cleanup_ci_signing_identity
  end

  private_lane :verify_ci_signing_identity do
    next unless ENV["CI"]

    keychain_path = ENV.fetch("MATCH_KEYCHAIN_NAME")
    identities = sh("security find-identity -v -p codesigning #{keychain_path.shellescape}", log: false)
    UI.message(identities)

    unless identities.include?(SIGNING_IDENTITY_NAME)
      UI.user_error!("The runner login keychain does not contain the expected Apple Distribution signing identity")
    end
  end

  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

  private_lane :sync_match_signing do |options|
    %w[
      APP_STORE_CONNECT_API_KEY
      APP_STORE_CONNECT_API_KEY_PATH
      SIGH_API_KEY
      SIGH_API_KEY_PATH
    ].each { |key| ENV.delete(key) }

    match_options = {
      type: "appstore",
      readonly: options.fetch(:readonly),
      app_identifier: APP_IDENTIFIER,
      team_id: TEAM_ID,
      profile_name: PROFILE_NAME,
      git_branch: MATCH_BRANCH,
      git_full_name: "Sybil Release Bot",
      git_user_email: "james.magahern@me.com",
      api_key: app_store_api_key
    }
    match_options[:git_url] = ENV.fetch("MATCH_GIT_URL")
    match_options[:keychain_name] = ENV["MATCH_KEYCHAIN_NAME"] if present?(ENV["MATCH_KEYCHAIN_NAME"])
    match_options[:keychain_password] = ENV["MATCH_KEYCHAIN_PASSWORD"] if present?(ENV["MATCH_KEYCHAIN_PASSWORD"])

    match(match_options)
  end

  desc "Create or update match signing assets"
  lane :setup_signing do
    prepare_ci_keychain
    sync_match_signing(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.shellescape}")

    increment_version_number(
      version_number: release_version,
      xcodeproj: PROJECT_FILE
    )

    latest_build_number = latest_testflight_build_number(
      app_identifier: APP_IDENTIFIER,
      api_key: api_key,
      initial_build_number: 0
    )

    increment_build_number(
      build_number: latest_build_number + 1,
      xcodeproj: PROJECT_FILE
    )

    build_options = {
      project: PROJECT_FILE,
      scheme: SCHEME,
      export_method: "app-store",
      export_options: {
        provisioningProfiles: {
          APP_IDENTIFIER => PROFILE_NAME
        }
      }
    }

    if ENV["CI"]
      build_options[:xcargs] = [
        "CODE_SIGN_IDENTITY=#{SIGNING_IDENTITY_SHA1.shellescape}",
        "OTHER_CODE_SIGN_FLAGS=#{("--keychain #{ENV.fetch("MATCH_KEYCHAIN_NAME")}").shellescape}"
      ].join(" ")
    end

    begin
      sync_match_signing(readonly: true)
      verify_ci_signing_identity
      build_app(build_options)
    ensure
      cleanup_ci_signing_identity
    end

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