export const BABY_LOVE_DRAWING_TEMPLATE_ID = 'baby-love-drawing';
export const BABY_LOVE_DRAWING_TEMPLATE_NAME = '宝贝爱画';
export const BABY_LOVE_DRAWING_EDUTAINMENT_TAG = '寓教于乐';

export type BabyLoveDrawingTemplateId =
  typeof BABY_LOVE_DRAWING_TEMPLATE_ID;

export type BabyLoveDrawingTool = 'brush' | 'eraser';

export type BabyLoveDrawingSaveMode =
  | 'original-only'
  | 'original-and-magic';

export type BabyLoveDrawingGenerationProvider =
  | 'vector-engine-gpt-image-2'
  | 'local-demo';

export type BabyLoveDrawingPoint = {
  x: number;
  y: number;
  t: number;
};

export type BabyLoveDrawingStroke = {
  strokeId: string;
  tool: BabyLoveDrawingTool;
  color: string;
  points: BabyLoveDrawingPoint[];
};

export type BabyLoveDrawingRecord = {
  drawingId: string;
  templateId: BabyLoveDrawingTemplateId;
  templateName: typeof BABY_LOVE_DRAWING_TEMPLATE_NAME;
  originalImageSrc: string;
  magicImageSrc: string | null;
  strokeTrace: BabyLoveDrawingStroke[];
  saveMode: BabyLoveDrawingSaveMode;
  themeTags: string[];
  createdAt: string;
  updatedAt: string;
};

export type CreateBabyLoveDrawingMagicRequest = {
  originalImageSrc: string;
  strokeTrace: BabyLoveDrawingStroke[];
};

export type CreateBabyLoveDrawingMagicResponse = {
  magicImageSrc: string;
  generationProvider: BabyLoveDrawingGenerationProvider;
  prompt: string;
};

export type SaveBabyLoveDrawingRequest = {
  originalImageSrc: string;
  magicImageSrc?: string | null;
  strokeTrace: BabyLoveDrawingStroke[];
};

export type SaveBabyLoveDrawingResponse = {
  record: BabyLoveDrawingRecord;
};

export const BABY_LOVE_DRAWING_RAINBOW_COLORS = [
  { id: 'red', label: '红', value: '#ef4444' },
  { id: 'orange', label: '橙', value: '#f97316' },
  { id: 'yellow', label: '黄', value: '#facc15' },
  { id: 'green', label: '绿', value: '#22c55e' },
  { id: 'cyan', label: '青', value: '#06b6d4' },
  { id: 'blue', label: '蓝', value: '#3b82f6' },
  { id: 'purple', label: '紫', value: '#a855f7' },
] as const;

export type BabyLoveDrawingRainbowColorId =
  (typeof BABY_LOVE_DRAWING_RAINBOW_COLORS)[number]['id'];

export function normalizeBabyLoveDrawingTags(tags: string[]) {
  return [
    ...new Set([
      BABY_LOVE_DRAWING_EDUTAINMENT_TAG,
      ...tags.map((tag) => tag.trim()).filter(Boolean),
    ]),
  ];
}