import {
  AI_AUTO_GENERATED_FIELDS_DEFAULT,
  parseAiAutoGeneratedFieldsString,
} from '@/photo/ai';
import { parseOrderedCategoriesFromString } from '@/category';
import type { StorageType } from '@/platforms/storage';
import {
  makeUrlAbsolute,
  shortenUrl,
} from '@/utility/url';
import { getNavSortControlFromString, getSortByFromString } from '@/photo/sort';
import { parseChromaCutoff, parseStartingHue } from '@/photo/color/sort';
import { parseSocialKeysFromString } from '@/social';
import { dependencies } from '../../package.json';
import { normalizeRedisUrl } from '@/platforms/redis';

// HARD-CODED GLOBAL CONFIGURATION

export const SHOULD_PREFETCH_ALL_LINKS: boolean | undefined = undefined;

// TEMPLATE META

export const TEMPLATE_TITLE = 'Photo Blog';
export const TEMPLATE_DESCRIPTION = 'Store photos with original camera data';

// SOURCE CODE

export const TEMPLATE_REPO_OWNER  = 'sambecker';
export const TEMPLATE_REPO_NAME   = 'exif-photo-blog';
export const TEMPLATE_REPO_BRANCH = 'main';
export const TEMPLATE_REPO_URL =
  `https://github.com/${TEMPLATE_REPO_OWNER}/${TEMPLATE_REPO_NAME}`;
export const TEMPLATE_REPO_URL_FORK = `${TEMPLATE_REPO_URL}/fork`;
export const TEMPLATE_REPO_URL_README =
  `${TEMPLATE_REPO_URL}?tab=readme-ov-file`;

export const VERCEL_GIT_PROVIDER =
  process.env.NEXT_PUBLIC_VERCEL_GIT_PROVIDER;
export const VERCEL_GIT_REPO_OWNER =
  process.env.NEXT_PUBLIC_VERCEL_GIT_REPO_OWNER;
export const VERCEL_GIT_REPO_SLUG =
  process.env.NEXT_PUBLIC_VERCEL_GIT_REPO_SLUG;
export const VERCEL_GIT_BRANCH = process.env.NEXT_PUBLIC_VERCEL_GIT_COMMIT_REF;
export const VERCEL_GIT_COMMIT_MESSAGE =
  process.env.NEXT_PUBLIC_VERCEL_GIT_COMMIT_MESSAGE;
export const VERCEL_GIT_COMMIT_SHA =
  process.env.NEXT_PUBLIC_VERCEL_GIT_COMMIT_SHA;
export const VERCEL_GIT_COMMIT_SHA_SHORT = VERCEL_GIT_COMMIT_SHA
  ? VERCEL_GIT_COMMIT_SHA.slice(0, 7)
  : undefined;
export const IS_VERCEL_GIT_PROVIDER_GITHUB = VERCEL_GIT_PROVIDER === 'github';
export const VERCEL_GIT_COMMIT_URL = IS_VERCEL_GIT_PROVIDER_GITHUB
  // eslint-disable-next-line max-len
  ? `https://github.com/${VERCEL_GIT_REPO_OWNER}/${VERCEL_GIT_REPO_SLUG}/commit/${VERCEL_GIT_COMMIT_SHA}`
  : undefined;

export const VERCEL_ENV = process.env.NEXT_PUBLIC_VERCEL_ENV;
export const VERCEL_PRODUCTION_URL = process.env.VERCEL_PROJECT_PRODUCTION_URL;
export const VERCEL_DEPLOYMENT_URL = process.env.NEXT_PUBLIC_VERCEL_URL;
export const VERCEL_BRANCH_URL = process.env.NEXT_PUBLIC_VERCEL_BRANCH_URL;
// Last resort: cannot be used reliably
export const VERCEL_PROJECT_URL = VERCEL_BRANCH_URL && VERCEL_GIT_BRANCH
  ? `${VERCEL_BRANCH_URL.split(`-git-${VERCEL_GIT_BRANCH}-`)[0]}.vercel.app`
  : undefined;

export const IS_PRODUCTION = process.env.NODE_ENV === 'production' && (
  // Make environment checks resilient to non-Vercel deployments
  VERCEL_ENV === 'production' ||
  !VERCEL_ENV
);
export const IS_DEVELOPMENT = process.env.NODE_ENV === 'development';
export const IS_PREVIEW = VERCEL_ENV === 'preview';
export const IS_BUILDING = process.env.NEXT_PHASE === 'phase-production-build';

export const VERCEL_BYPASS_KEY = 'x-vercel-protection-bypass';
export const VERCEL_BYPASS_SECRET = process.env.VERCEL_AUTOMATION_BYPASS_SECRET;

// DOMAIN

// User-facing domain, potential site title
const SITE_DOMAIN =
  process.env.NEXT_PUBLIC_DOMAIN ||
  // Legacy environment variable
  process.env.NEXT_PUBLIC_SITE_DOMAIN ||
  VERCEL_PRODUCTION_URL ||
  VERCEL_PROJECT_URL ||
  VERCEL_DEPLOYMENT_URL;
const SITE_DOMAIN_SHARE = process.env.NEXT_PUBLIC_DOMAIN_SHARE;

// Used primarily for absolute references such as OG images
export const BASE_URL =
  makeUrlAbsolute((
    process.env.NODE_ENV === 'production' &&
    VERCEL_ENV !== 'preview'
  ) ? SITE_DOMAIN
    : VERCEL_ENV === 'preview'
      ? VERCEL_BRANCH_URL || VERCEL_DEPLOYMENT_URL
      : 'http://localhost:3000')?.toLocaleLowerCase();
export const BASE_URL_SHARE =
  makeUrlAbsolute(SITE_DOMAIN_SHARE)?.toLocaleLowerCase();

export const getBaseUrl = (share?: boolean) =>
  (share && BASE_URL_SHARE) ? BASE_URL_SHARE : BASE_URL;

const SITE_DOMAIN_SHORT = shortenUrl(SITE_DOMAIN);

// SITE META

export const APP_LOCALE = (process.env.NEXT_PUBLIC_LOCALE || 'en-us')
  // Accepts both `en-us` and `EN_US`
  .toLocaleLowerCase()
  .replace('_', '-');
export const HTML_LANG = (APP_LOCALE.split('-')[0] || 'en');

export const CUSTOM_NAV_TITLE =
  process.env.NEXT_PUBLIC_NAV_TITLE;

export const NAV_CAPTION =
  process.env.NEXT_PUBLIC_NAV_CAPTION ||
  // Legacy environment variable
  process.env.NEXT_PUBLIC_SITE_DESCRIPTION;

export const META_TITLE =
  process.env.NEXT_PUBLIC_META_TITLE ||
  // Legacy environment variable
  process.env.NEXT_PUBLIC_SITE_TITLE ||
  CUSTOM_NAV_TITLE ||
  TEMPLATE_TITLE;

export const IS_META_TITLE_CONFIGURED =
  Boolean(process.env.NEXT_PUBLIC_META_TITLE) ||
  // Legacy environment variable
  Boolean(process.env.NEXT_PUBLIC_SITE_TITLE) ||
  Boolean(CUSTOM_NAV_TITLE);

export const IS_META_DESCRIPTION_CONFIGURED =
  Boolean(process.env.NEXT_PUBLIC_META_DESCRIPTION) ||
  Boolean(NAV_CAPTION);

export const META_DESCRIPTION =
  process.env.NEXT_PUBLIC_META_DESCRIPTION ||
  NAV_CAPTION ||
  SITE_DOMAIN_SHORT;

export const NAV_TITLE =
  CUSTOM_NAV_TITLE ||
  SITE_DOMAIN_SHORT ||
  META_TITLE;

export const SIDEBAR_TEXT =
  process.env.NEXT_PUBLIC_SIDEBAR_TEXT ||
  // Legacy environment variables
  process.env.NEXT_PUBLIC_PAGE_ABOUT ||
  process.env.NEXT_PUBLIC_SITE_ABOUT;

export const ABOUT_TITLE =
  process.env.NEXT_PUBLIC_ABOUT_TITLE ||
  NAV_TITLE;

export const ABOUT_SUBHEAD =
  process.env.NEXT_PUBLIC_ABOUT_SUBHEAD;

export const ABOUT_DESCRIPTION_DEFAULT =
  process.env.NEXT_PUBLIC_ABOUT_DESCRIPTION ||
  process.env.NEXT_PUBLIC_SIDEBAR_TEXT ||
  process.env.NEXT_PUBLIC_META_DESCRIPTION;

// STORAGE

// STORAGE: DATABASE
export const HAS_DATABASE =
  Boolean(process.env.POSTGRES_URL);
export const POSTGRES_SSL_ENABLED =
  process.env.DISABLE_POSTGRES_SSL === '1' ? false : true;

// STORAGE: REDIS
export const REDIS_URL = normalizeRedisUrl(
  process.env.KV_URL ||
  process.env.KV_REST_API_URL ||
  process.env.EXIF_KV_REST_API_URL ||
  process.env.UPSTASH_REDIS_REST_URL,
);
export const REDIS_TOKEN = (
  process.env.KV_TOKEN ||
  process.env.KV_REST_API_TOKEN ||
  process.env.EXIF_KV_REST_API_TOKEN ||
  process.env.UPSTASH_REDIS_REST_TOKEN
);
export const HAS_REDIS_STORAGE =
  Boolean(REDIS_URL && REDIS_TOKEN);

// STORAGE: VERCEL BLOB
export const HAS_VERCEL_BLOB_STORAGE =
  Boolean(process.env.BLOB_READ_WRITE_TOKEN);

// STORAGE: Cloudflare R2
// Includes separate check for client-side usage, i.e., url construction
export const HAS_CLOUDFLARE_R2_STORAGE_CLIENT =
  Boolean(process.env.NEXT_PUBLIC_CLOUDFLARE_R2_BUCKET) &&
  Boolean(process.env.NEXT_PUBLIC_CLOUDFLARE_R2_ACCOUNT_ID) &&
  Boolean(process.env.NEXT_PUBLIC_CLOUDFLARE_R2_PUBLIC_DOMAIN);
export const HAS_CLOUDFLARE_R2_STORAGE =
  HAS_CLOUDFLARE_R2_STORAGE_CLIENT &&
  Boolean(process.env.CLOUDFLARE_R2_ACCESS_KEY) &&
  Boolean(process.env.CLOUDFLARE_R2_SECRET_ACCESS_KEY);

// STORAGE: AWS S3
// Includes separate check for client-side usage, i.e., url construction
export const HAS_AWS_S3_STORAGE_CLIENT =
  Boolean(process.env.NEXT_PUBLIC_AWS_S3_BUCKET) &&
  Boolean(process.env.NEXT_PUBLIC_AWS_S3_REGION);
export const HAS_AWS_S3_STORAGE =
  HAS_AWS_S3_STORAGE_CLIENT &&
  Boolean(process.env.AWS_S3_ACCESS_KEY) &&
  Boolean(process.env.AWS_S3_SECRET_ACCESS_KEY);

// STORAGE: MINIO
// Includes separate check for client-side usage, i.e., url construction
export const HAS_MINIO_STORAGE_CLIENT =
  Boolean(process.env.NEXT_PUBLIC_MINIO_BUCKET) &&
  Boolean(process.env.NEXT_PUBLIC_MINIO_DOMAIN);
export const HAS_MINIO_STORAGE =
  HAS_MINIO_STORAGE_CLIENT &&
  Boolean(process.env.MINIO_ACCESS_KEY) &&
  Boolean(process.env.MINIO_SECRET_ACCESS_KEY);

export const HAS_MULTIPLE_STORAGE_PROVIDERS = [
  HAS_VERCEL_BLOB_STORAGE,
  HAS_CLOUDFLARE_R2_STORAGE,
  HAS_AWS_S3_STORAGE,
  HAS_MINIO_STORAGE,
].filter(Boolean).length > 1;

// Storage preference requires client-available keys
// so it can be reached in the browser when uploading
export const CURRENT_STORAGE: StorageType =
  (process.env.NEXT_PUBLIC_STORAGE_PREFERENCE as StorageType | undefined) || (
    HAS_MINIO_STORAGE_CLIENT
      ? 'minio'
      : HAS_CLOUDFLARE_R2_STORAGE_CLIENT
        ? 'cloudflare-r2'
        : HAS_AWS_S3_STORAGE_CLIENT
          ? 'aws-s3'
          : 'vercel-blob'
  );

// PERFORMANCE

export const STATICALLY_OPTIMIZED_PHOTOS =
  process.env.NEXT_PUBLIC_STATICALLY_OPTIMIZE_PHOTOS === '1' ||
  // Legacy environment variable
  process.env.NEXT_PUBLIC_STATICALLY_OPTIMIZE_PAGES === '1';
export const STATICALLY_OPTIMIZED_PHOTO_OG_IMAGES =
  process.env.NEXT_PUBLIC_STATICALLY_OPTIMIZE_PHOTO_OG_IMAGES === '1' ||
  // Legacy environment variable
  process.env.NEXT_PUBLIC_STATICALLY_OPTIMIZE_OG_IMAGES === '1';
export const STATICALLY_OPTIMIZED_PHOTO_CATEGORIES =
  process.env.NEXT_PUBLIC_STATICALLY_OPTIMIZE_PHOTO_CATEGORIES === '1';
export const STATICALLY_OPTIMIZED_PHOTO_CATEGORY_OG_IMAGES =
  process.env.NEXT_PUBLIC_STATICALLY_OPTIMIZE_PHOTO_CATEGORY_OG_IMAGES === '1';
export const HAS_STATIC_OPTIMIZATION =
  STATICALLY_OPTIMIZED_PHOTOS ||
  STATICALLY_OPTIMIZED_PHOTO_OG_IMAGES ||
  STATICALLY_OPTIMIZED_PHOTO_CATEGORIES ||
  STATICALLY_OPTIMIZED_PHOTO_CATEGORY_OG_IMAGES;

export const PRESERVE_ORIGINAL_UPLOADS =
  process.env.NEXT_PUBLIC_PRESERVE_ORIGINAL_UPLOADS === '1' ||
  // Legacy environment variable
  process.env.NEXT_PUBLIC_PRO_MODE === '1';
export const IMAGE_QUALITY =
  process.env.NEXT_PUBLIC_IMAGE_QUALITY
    ? parseInt(process.env.NEXT_PUBLIC_IMAGE_QUALITY)
    : 75;
// Load photos from storage CDN in the browser (skip /_next/image server proxy).
// Enabled by default when a public R2 domain is configured; set to 0 to disable.
export const DIRECT_STORAGE_IMAGES =
  process.env.NEXT_PUBLIC_DIRECT_STORAGE_IMAGES === '1' ||
  (
    process.env.NEXT_PUBLIC_DIRECT_STORAGE_IMAGES !== '0' &&
    Boolean(process.env.NEXT_PUBLIC_CLOUDFLARE_R2_PUBLIC_DOMAIN)
  );
export const BLUR_ENABLED =
  process.env.NEXT_PUBLIC_BLUR_DISABLED !== '1';

// AI

export const OPENAI_SECRET_KEY = process.env.OPENAI_SECRET_KEY;
export const OPENAI_MODEL = process.env.OPENAI_MODEL;
export const OPENAI_BASE_URL = process.env.OPENAI_BASE_URL;
export const AI_CONTENT_GENERATION_ENABLED = Boolean(OPENAI_SECRET_KEY);
export const AI_TEXT_AUTO_GENERATED_FIELDS = parseAiAutoGeneratedFieldsString(
  process.env.AI_TEXT_AUTO_GENERATED_FIELDS);

// LOCATION SERVICES

export const GOOGLE_PLACES_API_KEY = process.env.GOOGLE_PLACES_API_KEY;
export const HAS_LOCATION_SERVICES = Boolean(GOOGLE_PLACES_API_KEY);

// CATEGORIES

export const CATEGORY_VISIBILITY = parseOrderedCategoriesFromString(
  process.env.NEXT_PUBLIC_CATEGORY_VISIBILITY);
export const SHOW_RECENTS =
  CATEGORY_VISIBILITY.includes('recents');
export const IS_RECENTS_FIRST =
  CATEGORY_VISIBILITY[0] === 'recents';
export const SHOW_YEARS =
  CATEGORY_VISIBILITY.includes('years');
export const SHOW_CAMERAS =
  CATEGORY_VISIBILITY.includes('cameras');
export const SHOW_LENSES =
  CATEGORY_VISIBILITY.includes('lenses');
export const SHOW_ALBUMS =
  CATEGORY_VISIBILITY.includes('albums');
export const SHOW_TAGS =
  CATEGORY_VISIBILITY.includes('tags');
export const SHOW_RECIPES =
  CATEGORY_VISIBILITY.includes('recipes');
export const SHOW_FILMS =
  CATEGORY_VISIBILITY.includes('films');
export const SHOW_FOCAL_LENGTHS =
  CATEGORY_VISIBILITY.includes('focal-lengths');
export const SHOW_CATEGORIES_ON_MOBILE =
  process.env.NEXT_PUBLIC_HIDE_CATEGORIES_ON_MOBILE !== '1';
export const SHOW_CATEGORY_IMAGE_HOVERS =
  process.env.NEXT_PUBLIC_HIDE_CATEGORY_IMAGE_HOVERS !== '1';
export const COLLAPSE_SIDEBAR_CATEGORIES =
  process.env.NEXT_PUBLIC_EXHAUSTIVE_SIDEBAR_CATEGORIES !== '1';
export const HIDE_TAGS_WITH_ONE_PHOTO =
  process.env.NEXT_PUBLIC_HIDE_TAGS_WITH_ONE_PHOTO === '1';

// SORT

export const USER_DEFAULT_SORT_BY =
  getSortByFromString(process.env.NEXT_PUBLIC_DEFAULT_SORT);
export const USER_DEFAULT_SORT_WITH_PRIORITY =
  process.env.NEXT_PUBLIC_PRIORITY_BASED_SORTING === '1';
export const USER_DEFAULT_SORT_OPTIONS = {
  sortBy: USER_DEFAULT_SORT_BY,
  sortWithPriority: USER_DEFAULT_SORT_WITH_PRIORITY,
};
export const COLOR_SORT_ENABLED =
  process.env.NEXT_PUBLIC_COLOR_SORT === '1';
export const COLOR_SORT_STARTING_HUE =
  parseStartingHue(process.env.NEXT_PUBLIC_COLOR_SORT_STARTING_HUE);
export const COLOR_SORT_CHROMA_CUTOFF =
  parseChromaCutoff(process.env.NEXT_PUBLIC_COLOR_SORT_CHROMA_CUTOFF);
export const NAV_SORT_CONTROL = COLOR_SORT_ENABLED
  ? 'menu'
  : getNavSortControlFromString(process.env.NEXT_PUBLIC_NAV_SORT_CONTROL);

// DISPLAY

export const SHOW_ABOUT_PAGE =
  process.env.NEXT_PUBLIC_HIDE_ABOUT_PAGE !== '1';
export const SHOW_KEYBOARD_SHORTCUT_TOOLTIPS =
  process.env.NEXT_PUBLIC_HIDE_KEYBOARD_SHORTCUT_TOOLTIPS !== '1';
export const SHOW_EXIF_DATA =
  process.env.NEXT_PUBLIC_HIDE_EXIF_DATA !== '1';
export const ALWAYS_SHOW_EXPOSURE_COMP =
  process.env.NEXT_PUBLIC_ALWAYS_SHOW_EXPOSURE_COMP === '1';
export const SHOW_ZOOM_CONTROLS =
  process.env.NEXT_PUBLIC_HIDE_ZOOM_CONTROLS !== '1';
export const SHOW_TAKEN_AT_TIME =
  process.env.NEXT_PUBLIC_HIDE_TAKEN_AT_TIME !== '1';
export const SHOW_REPO_LINK =
  process.env.NEXT_PUBLIC_HIDE_REPO_LINK !== '1';

// GRID

export const GRID_HOMEPAGE_ENABLED =
  process.env.NEXT_PUBLIC_GRID_HOMEPAGE === '1';
export const MASONRY_GRID_ENABLED =
  process.env.NEXT_PUBLIC_MASONRY_GRID === '1';
export const GRID_ASPECT_RATIO =
  process.env.NEXT_PUBLIC_GRID_ASPECT_RATIO
    ? parseFloat(process.env.NEXT_PUBLIC_GRID_ASPECT_RATIO)
    : 1;
export const PREFERS_LOW_DENSITY_GRID =
  process.env.NEXT_PUBLIC_SHOW_LARGE_THUMBNAILS === '1';
export const HIGH_DENSITY_GRID =
  GRID_ASPECT_RATIO <= 1 &&
  !PREFERS_LOW_DENSITY_GRID;

// DESIGN

export const DEFAULT_THEME =
  process.env.NEXT_PUBLIC_DEFAULT_THEME === 'dark'
    ? 'dark'
    : process.env.NEXT_PUBLIC_DEFAULT_THEME === 'light'
      ? 'light'
      : 'system';
export const MATTE_PHOTOS =
  process.env.NEXT_PUBLIC_MATTE_PHOTOS === '1';
export const MATTE_COLOR =
  process.env.NEXT_PUBLIC_MATTE_COLOR;
export const MATTE_COLOR_DARK =
  process.env.NEXT_PUBLIC_MATTE_COLOR_DARK;

// SETTINGS

export const GEO_PRIVACY_ENABLED =
  process.env.NEXT_PUBLIC_GEO_PRIVACY === '1';
export const ALLOW_PUBLIC_DOWNLOADS =
  process.env.NEXT_PUBLIC_ALLOW_PUBLIC_DOWNLOADS === '1';
export const SOCIAL_NETWORKS = parseSocialKeysFromString(
  // Legacy environment variable
  process.env.NEXT_PUBLIC_HIDE_SOCIAL === '1'
    ? 'none'
    : process.env.NEXT_PUBLIC_SOCIAL_NETWORKS,
);
export const SITE_FEEDS_ENABLED =
  process.env.NEXT_PUBLIC_SITE_FEEDS === '1';
export const OG_TEXT_BOTTOM_ALIGNMENT =
  (process.env.NEXT_PUBLIC_OG_TEXT_ALIGNMENT ?? '').toUpperCase() === 'BOTTOM';

// SCRIPTS & ANALYTICS

export const PAGE_SCRIPT_URLS = process.env.PAGE_SCRIPT_URLS
  ? process.env.PAGE_SCRIPT_URLS
    .split(',')
    .map(url => url.trim().toLocaleLowerCase())
    .filter(url => url.startsWith('https://'))
  : [];

// DEBUGGING

export const DEBUG_OUTPUTS_ENABLED = process.env.DISABLE_DEBUG_OUTPUTS !== '1';

// INTERNAL

export const ADMIN_DEBUG_TOOLS_ENABLED = process.env.ADMIN_DEBUG_TOOLS === '1';
export const ADMIN_SQL_DEBUG_ENABLED =
  process.env.ADMIN_SQL_DEBUG === '1' &&
  !IS_BUILDING;
export const ADMIN_STORAGE_DEBUG_ENABLED =
  process.env.ADMIN_STORAGE_DEBUG === '1';

export const APP_CONFIGURATION = {
  // Storage
  hasDatabase: HAS_DATABASE,
  isPostgresSslEnabled: POSTGRES_SSL_ENABLED,
  hasRedisStorage: HAS_REDIS_STORAGE,
  hasVercelBlobStorage: HAS_VERCEL_BLOB_STORAGE,
  hasCloudflareR2Storage: HAS_CLOUDFLARE_R2_STORAGE,
  hasAwsS3Storage: HAS_AWS_S3_STORAGE,
  hasMinioStorage: HAS_MINIO_STORAGE,
  hasStorageProvider: (
    HAS_VERCEL_BLOB_STORAGE ||
    HAS_CLOUDFLARE_R2_STORAGE ||
    HAS_AWS_S3_STORAGE ||
    HAS_MINIO_STORAGE
  ),
  hasMultipleStorageProviders: HAS_MULTIPLE_STORAGE_PROVIDERS,
  currentStorage: CURRENT_STORAGE,
  // Auth
  hasAuthSecret: Boolean(process.env.AUTH_SECRET),
  hasAdminUser: (
    Boolean(process.env.ADMIN_EMAIL) &&
    Boolean(process.env.ADMIN_PASSWORD)
  ),
  // Content
  locale: APP_LOCALE,
  hasLocale: Boolean(process.env.NEXT_PUBLIC_LOCALE),
  domain: SITE_DOMAIN_SHORT,
  hasDomain: Boolean(
    process.env.NEXT_PUBLIC_DOMAIN ||
    // Legacy environment variable
    process.env.NEXT_PUBLIC_SITE_DOMAIN,
  ),
  metaTitle: META_TITLE,
  isMetaTitleConfigured: IS_META_TITLE_CONFIGURED,
  metaDescription: META_DESCRIPTION,
  isMetaDescriptionConfigured: IS_META_DESCRIPTION_CONFIGURED,
  navTitle: NAV_TITLE,
  hasNavTitle: Boolean(CUSTOM_NAV_TITLE),
  navCaption: NAV_CAPTION,
  hasNavCaption: Boolean(NAV_CAPTION),
  sidebarText: SIDEBAR_TEXT,
  hasSidebarText: Boolean(SIDEBAR_TEXT),
  // Performance
  isStaticallyOptimized: HAS_STATIC_OPTIMIZATION,
  arePhotosStaticallyOptimized: STATICALLY_OPTIMIZED_PHOTOS,
  arePhotoOGImagesStaticallyOptimized: STATICALLY_OPTIMIZED_PHOTO_OG_IMAGES,
  arePhotoCategoriesStaticallyOptimized: STATICALLY_OPTIMIZED_PHOTO_CATEGORIES,
  arePhotoCategoryOgImagesStaticallyOptimized:
    STATICALLY_OPTIMIZED_PHOTO_CATEGORY_OG_IMAGES,
  areOriginalUploadsPreserved: PRESERVE_ORIGINAL_UPLOADS,
  hasImageQuality: Boolean(process.env.NEXT_PUBLIC_IMAGE_QUALITY),
  imageQuality: IMAGE_QUALITY,
  isBlurEnabled: BLUR_ENABLED,
  // AI
  hasOpenaiModel: Boolean(OPENAI_MODEL),
  hasOpenaiBaseUrl: Boolean(OPENAI_BASE_URL),
  isAiTextGenerationEnabled: AI_CONTENT_GENERATION_ENABLED,
  aiTextAutoGeneratedFields: process.env.AI_TEXT_AUTO_GENERATED_FIELDS
    ? AI_TEXT_AUTO_GENERATED_FIELDS.length === 0
      ? ['none']
      : AI_TEXT_AUTO_GENERATED_FIELDS
    : AI_AUTO_GENERATED_FIELDS_DEFAULT,
  hasAiTextAutoGeneratedFields:
    Boolean(process.env.AI_TEXT_AUTO_GENERATED_FIELDS),
  // Location services
  hasLocationServices: HAS_LOCATION_SERVICES,
  // Categories
  hasCategoryVisibility:
    Boolean(process.env.NEXT_PUBLIC_CATEGORY_VISIBILITY),
  categoryVisibility: CATEGORY_VISIBILITY,
  showCategoriesOnMobile: SHOW_CATEGORIES_ON_MOBILE,
  showCategoryImageHover: SHOW_CATEGORY_IMAGE_HOVERS,
  collapseSidebarCategories: COLLAPSE_SIDEBAR_CATEGORIES,
  hideTagsWithOnePhoto: HIDE_TAGS_WITH_ONE_PHOTO,
  // Sort
  hasDefaultSortBy: Boolean(process.env.NEXT_PUBLIC_DEFAULT_SORT),
  defaultSortBy: USER_DEFAULT_SORT_BY,
  hasNavSortControl: Boolean(process.env.NEXT_PUBLIC_NAV_SORT_CONTROL),
  navSortControl: NAV_SORT_CONTROL,
  isColorSortEnabled: COLOR_SORT_ENABLED,
  hasColorSortConfiguration:
    Boolean(process.env.NEXT_PUBLIC_COLOR_SORT_STARTING_HUE) ||
    Boolean(process.env.NEXT_PUBLIC_COLOR_SORT_CHROMA_CUTOFF),
  colorSortStartingHue: COLOR_SORT_STARTING_HUE,
  colorSortChromaCutoff: COLOR_SORT_CHROMA_CUTOFF,
  isSortWithPriority: USER_DEFAULT_SORT_WITH_PRIORITY,
  // Display
  showAboutPage: SHOW_ABOUT_PAGE,
  showKeyboardShortcutTooltips: SHOW_KEYBOARD_SHORTCUT_TOOLTIPS,
  showExifInfo: SHOW_EXIF_DATA,
  alwaysShowExposureComp: ALWAYS_SHOW_EXPOSURE_COMP,
  showZoomControls: SHOW_ZOOM_CONTROLS,
  showTakenAtTimeHidden: SHOW_TAKEN_AT_TIME,
  showRepoLink: SHOW_REPO_LINK,
  // Grid
  isGridHomepageEnabled: GRID_HOMEPAGE_ENABLED,
  isMasonryGridEnabled: MASONRY_GRID_ENABLED,
  gridAspectRatio: GRID_ASPECT_RATIO,
  hasGridAspectRatio: Boolean(process.env.NEXT_PUBLIC_GRID_ASPECT_RATIO),
  hasHighGridDensity: HIGH_DENSITY_GRID,
  hasGridDensityPreference:
    Boolean(process.env.NEXT_PUBLIC_SHOW_LARGE_THUMBNAILS),
  // Design
  hasDefaultTheme: Boolean(process.env.NEXT_PUBLIC_DEFAULT_THEME),
  defaultTheme: DEFAULT_THEME,
  arePhotosMatted: MATTE_PHOTOS,
  arePhotoMatteColorsConfigured:
    Boolean(MATTE_COLOR) ||
    Boolean(MATTE_COLOR_DARK),
  matteColor: MATTE_COLOR,
  matteColorDark: MATTE_COLOR_DARK,
  // Settings
  isGeoPrivacyEnabled: GEO_PRIVACY_ENABLED,
  arePublicDownloadsEnabled: ALLOW_PUBLIC_DOWNLOADS,
  hasSocialKeys: Boolean(process.env.NEXT_PUBLIC_SOCIAL_NETWORKS),
  socialKeys: SOCIAL_NETWORKS,
  areSiteFeedsEnabled: SITE_FEEDS_ENABLED,
  isOgTextBottomAligned: OG_TEXT_BOTTOM_ALIGNMENT,
  // Scripts & Analytics
  hasPageScriptUrls: PAGE_SCRIPT_URLS.length > 0,
  pageScriptUrls: PAGE_SCRIPT_URLS,
  // Debugging
  isDebuggingEnabled: DEBUG_OUTPUTS_ENABLED,
  // Internal
  areInternalToolsEnabled: (
    ADMIN_DEBUG_TOOLS_ENABLED ||
    ADMIN_SQL_DEBUG_ENABLED
  ),
  areAdminDebugToolsEnabled: ADMIN_DEBUG_TOOLS_ENABLED,
  isAdminSqlDebugEnabled: ADMIN_SQL_DEBUG_ENABLED,
  isAdminStorageDebugEnabled: ADMIN_STORAGE_DEBUG_ENABLED,
  // Misc
  nextVersion: dependencies.next,
  reactVersion: dependencies.react,
  nodeVersion: (process.version || '').match(/[0-9.]+$/)?.[0],
  baseUrl: BASE_URL,
  baseUrlShare: BASE_URL_SHARE,
  commitSha: VERCEL_GIT_COMMIT_SHA_SHORT,
  commitMessage: VERCEL_GIT_COMMIT_MESSAGE,
  commitUrl: VERCEL_GIT_COMMIT_URL,
};

const ALL_DEPRECATED_ENV_VARS = [{
  old: 'NEXT_PUBLIC_SITE_DOMAIN',
  replacement: 'NEXT_PUBLIC_DOMAIN',
}, {
  old: 'NEXT_PUBLIC_SITE_DESCRIPTION',
  replacement: 'NEXT_PUBLIC_NAV_CAPTION',
}, {
  old: 'NEXT_PUBLIC_SITE_TITLE',
  replacement: 'NEXT_PUBLIC_META_TITLE',
}, {
  old: 'NEXT_PUBLIC_SITE_ABOUT',
  replacement: 'NEXT_PUBLIC_SIDEBAR_TEXT',
}, {
  old: 'NEXT_PUBLIC_PAGE_ABOUT',
  replacement: 'NEXT_PUBLIC_SIDEBAR_TEXT',
}, {
  old: 'NEXT_PUBLIC_STATICALLY_OPTIMIZE_PAGES',
  replacement: 'NEXT_PUBLIC_STATICALLY_OPTIMIZE_PHOTOS',
}, {
  old: 'NEXT_PUBLIC_STATICALLY_OPTIMIZE_OG_IMAGES',
  replacement: 'NEXT_PUBLIC_STATICALLY_OPTIMIZE_PHOTO_OG_IMAGES',
}, {
  old: 'NEXT_PUBLIC_PRO_MODE',
  replacement: 'NEXT_PUBLIC_PRESERVE_ORIGINAL_UPLOADS',
}, {
  old: 'NEXT_PUBLIC_HIDE_SOCIAL',
  replacement: 'NEXT_PUBLIC_SOCIAL_NETWORKS',
}];

export const USED_DEPRECATED_ENV_VARS = ALL_DEPRECATED_ENV_VARS
  .filter(({ old }) => Boolean(process.env[old]));

export const HAS_DEPRECATED_ENV_VARS =
  USED_DEPRECATED_ENV_VARS.length > 0;

export const IS_APP_READY =
  APP_CONFIGURATION.hasDatabase &&
  APP_CONFIGURATION.hasStorageProvider &&
  APP_CONFIGURATION.hasAuthSecret &&
  APP_CONFIGURATION.hasAdminUser;

export type AppConfiguration = typeof APP_CONFIGURATION;