export type BackgroundType = "color" | "video" | "image";

export interface BoothTheme {
  backgroundType: BackgroundType;
  backgroundColor: string;
  backgroundVideoUrl?: string;
  backgroundImageUrl?: string;
  primaryColor: string;
  accentColor: string;
  surfaceColor: string;
  textColor: string;
  logoUrl: string;
  logoWidth?: number;
}

export interface CameraConfig {
  defaultFacingMode: "user" | "environment";
  aspectRatio: "9:16" | "3:4" | "1:1" | "4:3";
  countdownSeconds: number;
  allowUpload: boolean;
  maxUploadSizeMb: number;
}

export interface FeatureFlags {
  showQrCode: boolean;
  showDownloadButton: boolean;
  showPrintButton: boolean;
  showRetakeButton: boolean;
  showInstagramShare?: boolean;
}

export interface RateLimitsConfig {
  maxGenerationsPerDevice: number; // 0 = unlimited
  cooldownMinutes: number;
}

export interface AIProviderConfig {
  provider: "gemini" | "openrouter";
  model: string;
  timeoutMs: number;
}

export interface AIConfig {
  primary: AIProviderConfig;
  backup: AIProviderConfig;
  cooldownDurationMinutes: number;
  enableSfwCheck: boolean;
}

export interface KioskConfig {
  enableAutoReset: boolean;
  idleTimeoutSeconds: number;
}

export interface LocalizedString {
  en: string;
  zh: string;
}

export interface BoothLabels {
  welcomeBadge: LocalizedString;
  welcomeTitle: LocalizedString;
  welcomeSubtitle: LocalizedString;
  welcomeDesc: LocalizedString;
  welcomeCta: LocalizedString;
  cameraInstruction: LocalizedString;
  cameraSnap: LocalizedString;
  cameraUpload: LocalizedString;
  confirmTitle: LocalizedString;
  retakeButton: LocalizedString;
  confirmButton: LocalizedString;
  styleSelectionTitle: LocalizedString;
  styleSelectionSubtitle: LocalizedString;
  confirmStyleButton: LocalizedString;
  backButton: LocalizedString;
  processingTitle: LocalizedString;
  processingSubtitle: LocalizedString;
  resultTitle: LocalizedString;
  scanQrLabel: LocalizedString;
  downloadLabel: LocalizedString;
  wechatSaveTip: LocalizedString;
  printLabel: LocalizedString;
  startOverLabel: LocalizedString;
  instagramShareLabel?: LocalizedString;
}

export interface BoothConfig {
  appName: string;
  kioskMode: boolean;
  theme: BoothTheme;
  camera: CameraConfig;
  features: FeatureFlags;
  limits: RateLimitsConfig;
  ai: AIConfig;
  kiosk: KioskConfig;
  labels: BoothLabels;
}

export interface BoothStyle {
  id: string;
  name: LocalizedString | string;
  description?: LocalizedString | string;
  thumbnail: string;
  sampleResult?: string;
  prompt: string;
  negativePrompt?: string;
}

export type ScreenState = 
  | "standby"
  | "camera"
  | "confirm"
  | "style"
  | "processing"
  | "result"
  | "rate_limited";