// Domain types shared across the app. The server returns the same shapes
// described here, so the client can trust the wire format at the type level.

export type Language =
  | "English"
  | "Deutsch"
  | "Español"
  | "Français"
  | "Italiano"
  | "Português"
  | "Polski"
  | "Czech"
  | "Other";

export type Vocals = "vocals" | "instrumental";

export type GenerationSection =
  | "all"
  | "lyrics"
  | "style"
  | "titles"
  | "video_prompts"
  | "youtube_description";

export type VideoPromptType = "Abstract" | "Cinematic" | "Hybrid";

export interface VideoPrompt {
  type: VideoPromptType;
  prompt: string;
  tool_recommendation: string;
}

export interface SongAssets {
  titles: string[];
  lyrics: string;
  style: string;
  negative_style: string;
  youtube_description: string;
  video_prompts: VideoPrompt[];
}

export interface GenerateRequest {
  input: string;
  language: string;
  mood?: string;
  style_hint?: string;
  vocals: Vocals;
  section: GenerationSection;
  context?: Partial<SongAssets>;
}

export interface InputValues {
  idea: string;
  language: Language | string;
  customLanguage: string;
  style_hint: string; // new — fed by the "Surprise me" / "Go crazy" buttons
  mood: string; // optional secondary field
  vocals: Vocals;
}

export const NEGATIVE_VIDEO_PROMPT =
  "text, watermark, logo, flash, abrupt cuts, camera shake, faces, hands, distortion, blur";

// Human-readable labels for each regenerable section — used by toasts and the
// history panel. Keep in sync with `GenerationSection`.
export const SECTION_LABELS: Record<GenerationSection, string> = {
  all: "everything",
  titles: "titles",
  lyrics: "lyrics",
  style: "style",
  video_prompts: "video prompts",
  youtube_description: "description",
};

export interface VideoAiLink {
  name: string;
  url: string;
}