import { requireNativeModule } from 'expo-modules-core';

export interface DecodeEncodeTimings {
  decodeMs: number;
  encodeWriteMs: number;
  totalMs: number;
}

export interface ColorTimings {
  decodeMs: number;
  toneMs?: number;
  cinemaMs?: number;
  colorMs: number;
  clarityMs?: number;
  grainMs?: number;
  frameMs?: number;
  sharpenMs?: number;
  encodeWriteMs: number;
  totalMs: number;
}

/** Rect (pixel coords) of the center-largest aspect crop, computed in JS. */
export interface CropRect {
  x: number;
  y: number;
  width: number;
  height: number;
}

/** ToneUniforms from toneShader.ts (0/0/0 = skip tone pass). */
export interface ToneUniforms {
  dr: number;
  hl: number;
  sh: number;
}

/** Optional pipeline params passed as a map (native Coroutine arity cap = 8). */
export interface PhotoAdjust {
  /** ToneUniforms from toneShader.ts; default 0/0/0 = skip tone pass. */
  toneDr?: number;
  toneHl?: number;
  toneSh?: number;
  /** 16 flat floats from cinemaShader.ts getCinemaUniforms(season).flat; null/omitted or flat[0]=0 = skip. */
  cinema?: number[] | null;
  /** ColorAdjustments.denoise 0..10 (0 = skip). */
  denoise?: number;
  /** ColorAdjustments.clarity -10..10; >0 conv sharpen, <0 mist blur (0 = skip). */
  clarity?: number;
  /** ColorAdjustments.grain 0..10 (0 = skip). */
  grain?: number;
  /** JPEG quality 0..100; default 95. */
  quality?: number;
  /** Final screen-sharpen amount (exportEngine #9 screenSharpenImage); >0 applies. */
  sharpen?: number;
  /** DPI stamped into the JPEG header after encode (patchJpegDpi port); 0 = skip. */
  dpi?: number;
  /** Composition aspect-ratio crop computed after decode (center-largest, engine #1b). */
  aspect?: '4:3' | '3:2' | 'full';
  /** Photo frame preset applied before encode, mirroring frameUtils.ts. Default 'none'. */
  frameId?: 'none' | 'classic-white' | 'cinematic' | 'polaroid' | 'wallframe';
  /** Base64 PNG art (wallframe only, 4000x3117). Decoded per call. */
  frameArtB64?: string;
  /** Base64 TTF body font (geo stamp only). Cached after first decode. */
  fontB64?: string;
  /** Base64 TTF emoji font (geo stamp only). Cached after first decode. */
  iconB64?: string;
  /** Optional GPS stamp {locality, timestamp}; null/omitted = skip. */
  geo?: { locality: string; timestamp: number } | null;
  /** Encode PNG instead of JPEG. Probe-only. */
  png?: boolean;
  /** Probe-only: sample these photo-space pixel coords after frame pass, before encode; logs via samplePixel. */
  probeSamples?: Array<{ x: number; y: number }>;
  /** Probe-only: log per-row stamp diff/amber/white metrics (see samplePixel) and return them in ColorTimings-adjacent logs. */
  probeStampDiff?: boolean;
}

export interface RecipescamExportModule {
  /** Decode JPEG/PNG at srcPath (plain absolute path), re-encode JPEG q and write dstPath. All native, background. Returns stage timings in ms. */
  decodeEncodeAsync(srcPath: string, dstPath: string, quality: number): Promise<DecodeEncodeTimings>;
  /**
   * Native pipeline mirroring exportEngine.ts filter order — decode, optional
   * center-largest crop, optional tone pass (TONE_SKSL port), optional cinema
   * seasonal grade (CINEMA_SKSL port), row-major 4x5 color matrix (translate
   * column in 0..1 Skia space), optional denoise blur / clarity conv / mist
   * blur / grain Overlay, then JPEG-encode to dstPath. All native, off the
   * JS/main threads. Stage order mirrors exportEngine: crop -> tone -> cinema
   * -> matrix -> denoise/clarity -> grain -> frame (classic/cinematic/
   * polaroid/wallframe) -> GPS stamp (geo, bottom of the composed output)
   * -> encode. Timings gain frameMs when a frame/stamp pass runs.
   */
  processPhotoAsync(srcPath: string, dstPath: string, matrix: number[], crop: CropRect | null, adjust?: PhotoAdjust): Promise<ColorTimings>;
  /** P1 alias: matrix + crop, no tone/cinema/enhance passes. */
  processColorAsync(srcPath: string, dstPath: string, matrix: number[], crop: CropRect | null, quality: number): Promise<ColorTimings>;
  /** P0 probe helpers — removed before ship. */
  ping(): Promise<string>;
  materializeBenchAsset(assetName: string): Promise<string>;
  materializeSolidAsset(r: number, g: number, b: number): Promise<string>;
  materializeRampAsset(): Promise<string>;
  materializeStepAsset(): Promise<string>;
}

export default requireNativeModule('RecipesCamExport') as RecipescamExportModule;