@grnsft/if
Version:
Impact Framework
146 lines • 20.3 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Interpolation = void 0;
const typescript_cubic_spline_1 = __importDefault(require("typescript-cubic-spline"));
const zod_1 = require("zod");
const types_1 = require("@grnsft/if-core/types");
const interfaces_1 = require("@grnsft/if-core/interfaces");
const utils_1 = require("@grnsft/if-core/utils");
const validations_1 = require("../../../common/util/validations");
const config_1 = require("../../config");
const { X_Y_EQUAL, ARRAY_LENGTH_NON_EMPTY, WITHIN_THE_RANGE, MISSING_CONFIG } = config_1.STRINGS;
const { ConfigError } = utils_1.ERRORS;
exports.Interpolation = (0, interfaces_1.PluginFactory)({
configValidation: (config) => {
if (!config || !Object.keys(config)?.length) {
throw new ConfigError(MISSING_CONFIG);
}
const schema = zod_1.z
.object({
method: zod_1.z.nativeEnum(types_1.Method),
x: zod_1.z.array(zod_1.z.number()),
y: zod_1.z.array(zod_1.z.number()),
'input-parameter': zod_1.z.string(),
'output-parameter': zod_1.z.string(),
})
.refine(data => data.x && data.y && data.x.length === data.y.length, {
message: X_Y_EQUAL,
})
.refine(data => data.x.length > 1 && data.y.length > 1, {
message: ARRAY_LENGTH_NON_EMPTY,
});
const defaultMethod = config.method ?? types_1.Method.LINEAR;
const updatedConfig = Object.assign({}, { method: defaultMethod }, config, {
x: sortPoints(config.x),
y: sortPoints(config.y),
});
return (0, validations_1.validate)(schema, updatedConfig);
},
inputValidation: (input, config, index) => {
const inputParameter = config['input-parameter'];
const schema = zod_1.z
.object({
timestamp: zod_1.z.string().or(zod_1.z.date()),
duration: zod_1.z.number(),
[inputParameter]: zod_1.z.number().gte(0).or(zod_1.z.literal('off')),
})
.refine(data => (data[inputParameter] >= config.x[0] &&
data[inputParameter] <= config.x[config.x.length - 1]) ||
data[inputParameter] === 'off', {
message: WITHIN_THE_RANGE,
});
return (0, validations_1.validate)(schema, input, index);
},
implementation: async (inputs, config) => {
const { 'input-parameter': inputParameter, 'output-parameter': outputParameter, } = config;
return inputs.map(input => {
if (input[inputParameter] === 'off') {
return {
...input,
[inputParameter]: 0,
[outputParameter]: 0,
};
}
return {
...input,
[outputParameter]: calculateResult(config, input),
};
});
},
allowArithmeticExpressions: ['input-parameter'],
});
/**
* Calculates the appropriate interpolation value based on the specified method type in the config and input parameters.
*/
const calculateResult = (config, input) => {
const methodType = {
linear: getLinearInterpolation(config, input),
spline: getSplineInterpolation(config, input),
polynomial: getPolynomialInterpolation(config, input),
};
return methodType[config.method];
};
/**
* Calculates the interpolation when the method is linear.
*/
const getLinearInterpolation = (config, input) => {
const parameter = typeof config['input-parameter'] === 'number'
? config['input-parameter']
: input[config['input-parameter']];
const xPoints = config.x;
const yPoints = config.y;
const result = xPoints.reduce((acc, xPoint, i) => {
if (parameter === xPoint) {
acc.baseCpu = xPoint;
acc.baseRate = yPoints[i];
}
else if (parameter > xPoint && parameter < xPoints[i + 1]) {
acc.baseCpu = xPoint;
acc.baseRate = yPoints[i];
acc.ratio = (yPoints[i + 1] - yPoints[i]) / (xPoints[i + 1] - xPoint);
}
return acc;
}, { baseRate: 0, baseCpu: 0, ratio: 0 });
return result.baseRate + (parameter - result.baseCpu) * result.ratio;
};
/**
* Calculates the interpolation when the method is spline.
*/
const getSplineInterpolation = (config, input) => {
const parameter = typeof config['input-parameter'] === 'number'
? config['input-parameter']
: input[config['input-parameter']];
const xPoints = config.x;
const yPoints = config.y;
const spline = new typescript_cubic_spline_1.default(xPoints, yPoints);
return spline.at(parameter);
};
/**
* Calculates the interpolation when the method is polynomial.
*/
const getPolynomialInterpolation = (config, input) => {
const parameter = typeof config['input-parameter'] === 'number'
? config['input-parameter']
: input[config['input-parameter']];
const xPoints = config.x;
const yPoints = config.y;
const result = xPoints.reduce((acc, x, i) => {
const term = yPoints[i] *
xPoints.reduce((prod, xPoint, j) => {
if (j !== i) {
return (prod * (parameter - xPoint)) / (x - xPoint);
}
return prod;
}, 1);
return acc + term;
}, 0);
return result;
};
/**
* Sorts given point items in ascending order.
*/
const sortPoints = (items) => items.sort((a, b) => a - b);
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Spline from 'typescript-cubic-spline';\nimport {z} from 'zod';\n\nimport {PluginParams, ConfigParams, Method} from '@grnsft/if-core/types';\nimport {PluginFactory} from '@grnsft/if-core/interfaces';\nimport {ERRORS} from '@grnsft/if-core/utils';\n\nimport {validate} from '../../../common/util/validations';\n\nimport {STRINGS} from '../../config';\n\nconst {X_Y_EQUAL, ARRAY_LENGTH_NON_EMPTY, WITHIN_THE_RANGE, MISSING_CONFIG} =\n  STRINGS;\n\nconst {ConfigError} = ERRORS;\n\nexport const Interpolation = PluginFactory({\n  configValidation: (config: ConfigParams) => {\n    if (!config || !Object.keys(config)?.length) {\n      throw new ConfigError(MISSING_CONFIG);\n    }\n\n    const schema = z\n      .object({\n        method: z.nativeEnum(Method),\n        x: z.array(z.number()),\n        y: z.array(z.number()),\n        'input-parameter': z.string(),\n        'output-parameter': z.string(),\n      })\n      .refine(data => data.x && data.y && data.x.length === data.y.length, {\n        message: X_Y_EQUAL,\n      })\n      .refine(data => data.x.length > 1 && data.y.length > 1, {\n        message: ARRAY_LENGTH_NON_EMPTY,\n      });\n\n    const defaultMethod = config.method ?? Method.LINEAR;\n    const updatedConfig = Object.assign({}, {method: defaultMethod}, config, {\n      x: sortPoints(config.x),\n      y: sortPoints(config.y),\n    });\n\n    return validate<z.infer<typeof schema>>(schema, updatedConfig);\n  },\n  inputValidation: (\n    input: PluginParams,\n    config: ConfigParams,\n    index: number | undefined\n  ) => {\n    const inputParameter = config['input-parameter'];\n\n    const schema = z\n      .object({\n        timestamp: z.string().or(z.date()),\n        duration: z.number(),\n        [inputParameter]: z.number().gte(0).or(z.literal('off')),\n      })\n      .refine(\n        data =>\n          (data[inputParameter] >= config.x[0] &&\n            data[inputParameter] <= config.x[config.x.length - 1]) ||\n          data[inputParameter] === 'off',\n        {\n          message: WITHIN_THE_RANGE,\n        }\n      );\n\n    return validate<z.infer<typeof schema>>(schema, input, index);\n  },\n  implementation: async (inputs: PluginParams[], config: ConfigParams) => {\n    const {\n      'input-parameter': inputParameter,\n      'output-parameter': outputParameter,\n    } = config;\n\n    return inputs.map(input => {\n      if (input[inputParameter] === 'off') {\n        return {\n          ...input,\n          [inputParameter]: 0,\n          [outputParameter]: 0,\n        };\n      }\n\n      return {\n        ...input,\n        [outputParameter]: calculateResult(config, input),\n      };\n    });\n  },\n  allowArithmeticExpressions: ['input-parameter'],\n});\n\n/**\n * Calculates the appropriate interpolation value based on the specified method type in the config and input parameters.\n */\nconst calculateResult = (config: ConfigParams, input: PluginParams) => {\n  const methodType: {[key: string]: number} = {\n    linear: getLinearInterpolation(config, input),\n    spline: getSplineInterpolation(config, input),\n    polynomial: getPolynomialInterpolation(config, input),\n  };\n\n  return methodType[config.method];\n};\n\n/**\n * Calculates the interpolation when the method is linear.\n */\nconst getLinearInterpolation = (config: ConfigParams, input: PluginParams) => {\n  const parameter =\n    typeof config['input-parameter'] === 'number'\n      ? config['input-parameter']\n      : input[config['input-parameter']];\n  const xPoints: number[] = config.x;\n  const yPoints: number[] = config.y;\n\n  const result = xPoints.reduce(\n    (acc, xPoint, i) => {\n      if (parameter === xPoint) {\n        acc.baseCpu = xPoint;\n        acc.baseRate = yPoints[i];\n      } else if (parameter > xPoint && parameter < xPoints[i + 1]) {\n        acc.baseCpu = xPoint;\n        acc.baseRate = yPoints[i];\n        acc.ratio = (yPoints[i + 1] - yPoints[i]) / (xPoints[i + 1] - xPoint);\n      }\n\n      return acc;\n    },\n    {baseRate: 0, baseCpu: 0, ratio: 0}\n  );\n\n  return result.baseRate + (parameter - result.baseCpu) * result.ratio;\n};\n\n/**\n * Calculates the interpolation when the method is spline.\n */\nconst getSplineInterpolation = (config: ConfigParams, input: PluginParams) => {\n  const parameter =\n    typeof config['input-parameter'] === 'number'\n      ? config['input-parameter']\n      : input[config['input-parameter']];\n  const xPoints: number[] = config.x;\n  const yPoints: number[] = config.y;\n  const spline: any = new Spline(xPoints, yPoints);\n\n  return spline.at(parameter);\n};\n\n/**\n * Calculates the interpolation when the method is polynomial.\n */\nconst getPolynomialInterpolation = (\n  config: ConfigParams,\n  input: PluginParams\n) => {\n  const parameter =\n    typeof config['input-parameter'] === 'number'\n      ? config['input-parameter']\n      : input[config['input-parameter']];\n  const xPoints: number[] = config.x;\n  const yPoints: number[] = config.y;\n\n  const result = xPoints.reduce((acc, x, i) => {\n    const term =\n      yPoints[i] *\n      xPoints.reduce((prod, xPoint, j) => {\n        if (j !== i) {\n          return (prod * (parameter - xPoint)) / (x - xPoint);\n        }\n        return prod;\n      }, 1);\n    return acc + term;\n  }, 0);\n\n  return result;\n};\n\n/**\n * Sorts given point items in ascending order.\n */\nconst sortPoints = (items: number[]) =>\n  items.sort((a: number, b: number) => a - b);\n"]}