import {
  DEFAULT_ANNOUNCEMENT_ALIGNMENT,
  DEFAULT_ANNOUNCEMENT_BACKGROUND_COLOR,
  normalizeAnnouncementAlignment,
  normalizeAnnouncementBackgroundColor
} from './announcement-bar.js'

export const ANNOUNCEMENT_SETTINGS_FIELDS = [
  'announcementEnabled',
  'announcementText',
  'announcementUrl',
  'announcementBackgroundColor',
  'announcementAlignment'
]

/**
 * 어나운스 바 설정 기본 스냅샷을 만든다.
 * @returns {Object} 기본 어나운스 바 설정 값
 */
export const createDefaultAnnouncementSettingsSnapshot = () => ({
  announcementEnabled: false,
  announcementText: '',
  announcementUrl: '',
  announcementBackgroundColor: DEFAULT_ANNOUNCEMENT_BACKGROUND_COLOR,
  announcementAlignment: DEFAULT_ANNOUNCEMENT_ALIGNMENT
})

/**
 * 어나운스 바 설정 값을 저장·비교 가능한 형태로 정규화한다.
 * @param {Object} source - 원본 설정 값
 * @returns {Object} 정규화된 어나운스 바 설정 값
 */
export const normalizeAnnouncementSettingsSection = (source = {}) => ({
  announcementEnabled: Boolean(source.announcementEnabled),
  announcementText: source.announcementText || '',
  announcementUrl: source.announcementUrl || '',
  announcementBackgroundColor: normalizeAnnouncementBackgroundColor(source.announcementBackgroundColor || DEFAULT_ANNOUNCEMENT_BACKGROUND_COLOR),
  announcementAlignment: normalizeAnnouncementAlignment(source.announcementAlignment || DEFAULT_ANNOUNCEMENT_ALIGNMENT)
})

/**
 * 어나운스 바 설정 필드만 대상 객체에 복사한다.
 * @param {Object} target - 값을 받을 객체
 * @param {Object} source - 값을 제공할 객체
 * @returns {void}
 */
export const assignAnnouncementSettingsSection = (target, source = {}) => {
  const normalized = normalizeAnnouncementSettingsSection(source)
  ANNOUNCEMENT_SETTINGS_FIELDS.forEach((field) => {
    target[field] = normalized[field]
  })
}

/**
 * 두 어나운스 바 설정 값이 다른지 확인한다.
 * @param {Object} current - 현재 설정 값
 * @param {Object} snapshot - 비교할 스냅샷
 * @returns {boolean} 변경 여부
 */
export const hasAnnouncementSettingsSectionChanges = (current, snapshot) => {
  const normalizedCurrent = normalizeAnnouncementSettingsSection(current)
  const normalizedSnapshot = normalizeAnnouncementSettingsSection(snapshot)
  return ANNOUNCEMENT_SETTINGS_FIELDS.some((field) => normalizedCurrent[field] !== normalizedSnapshot[field])
}