/**
 * 图像处理风格预设配置
 * 风格只定义参数组合，不包含 LUT 和算法
 */

import type { ProcessingStyle, ProcessingPreset, ParameterConfig } from '../types/imageProcessing';

// 风格预设配置（只包含参数）
export const PROCESSING_PRESETS: Record<ProcessingStyle, ProcessingPreset> = {
  '均衡': {
    style: '均衡',
    params: {
      contrast: 5.0,     // 增益
      detail: 9.0,       // 细节
      latitude: 25.0,    // 动态范围
      noise: 12.0,       // 噪声模式
      brightness: -2.0,  // 对比度（前端维护）
      sharpness: 1.0,    // 亮度（前端维护）
    },
  },
  '高对比': {
    style: '高对比',
    params: {
      contrast: 7.0,
      detail: 8.0,
      latitude: 20.0,
      noise: 10.0,
      brightness: 0.0,
      sharpness: 2.0,
    },
  },
  '锐组织': {
    style: '锐组织',
    params: {
      contrast: 6.0,
      detail: 12.0,
      latitude: 22.0,
      noise: 8.0,
      brightness: -1.0,
      sharpness: 3.0,
    },
  },
  '骨骼': {
    style: '骨骼',
    params: {
      contrast: 8.0,
      detail: 6.0,
      latitude: 18.0,
      noise: 15.0,
      brightness: 1.0,
      sharpness: 0.5,
    },
  },
};

// 参数范围配置（根据需求文档）
export const PARAMETER_RANGES: ParameterConfig = {
  gain: {
    min: -5,
    max: 45,
    step: 1,
    default: 5.0,
  },
  detail: {
    min: -0.5,
    max: 24.5,
    step: 1,
    default: 9.0,
  },
  latitude: {
    min: -5,
    max: 20,
    step: 1,
    default: 25.0,
  },
  noise: {
    min: 0,
    max: 20,
    step: 1,
    default: 12.0,
  },
  brightness: {
    min: -8,
    max: 8,
    step: 1,
    default: -2.0,
  },
  sharpness: {
    min: -8,
    max: 8,
    step: 1,
    default: 1.0,
  },
};

// 算法选项（当前只有一个）
export const ALGORITHM_OPTIONS = ['RSymphony'];
export const DEFAULT_ALGORITHM = 'RSymphony';

// 预留扩展：从后端获取风格配置的适配器接口
export interface PresetAdapter {
  fetchPresets: () => Promise<Record<ProcessingStyle, ProcessingPreset>>;
}

// 预留扩展：从后端获取算法列表的适配器接口
export interface AlgorithmAdapter {
  fetchAlgorithmOptions: () => Promise<string[]>;
}

// 默认适配器实现（使用本地配置）
export class LocalPresetAdapter implements PresetAdapter {
  async fetchPresets(): Promise<Record<ProcessingStyle, ProcessingPreset>> {
    return Promise.resolve(PROCESSING_PRESETS);
  }
}

export class LocalAlgorithmAdapter implements AlgorithmAdapter {
  async fetchAlgorithmOptions(): Promise<string[]> {
    return Promise.resolve(ALGORITHM_OPTIONS);
  }
}