@untemps/loan-schedule
Version:
Class to generate a schedule of loan payments
3 lines (2 loc) • 11.4 kB
JavaScript
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t((e="undefined"!=typeof globalThis?globalThis:e||self)["loan-schedule"]={})}(this,(function(e){"use strict";const t=(e,n)=>{for(const a of Object.keys(e))e[a]instanceof Object&&a in n&&Object.assign(e[a],t(n[a],e[a]));return Object.assign(n||{},e),n};var n;!function(e){e.CREDIT="credit",e.DEBIT="debit"}(n||(n={}));var a,s=n;!function(e){e.PAYMENT="payment",e.INSURANCE="insurance"}(a||(a={}));var r=a,o={headers:{year:{label:"Year"},balance:{label:"Balance"}}};class i{constructor(e,n,a){this.loanSettings=e,this.loanAmortizations=n,this.config=t(a||{},o)}get years(){return{headers:this.getHeaders(),values:this.getYears()}}getHeaders(){const{year:e,balance:t}=this.config.headers;return[e,...this.loanAmortizations.map(({label:e,type:t})=>({label:e,type:t})),t]}getYears(){const e=[];for(let t=0;t<this.loanSettings.term;t++)e.push(this.mapValues(this.loanAmortizations,t));return e}mapValues(e,t){const n=(new Date).getFullYear();let a=0;const r=e.reduce((e,{value:n,rate:r,type:o,compute:u})=>(u&&(n=i.getComputedValue(u,this.loanSettings)),r&&(n=i.getDynamicValue(n,r,t)),a+=n*(o===s.CREDIT?1:-1),[...e,n]),[n+t]);return r.push(a),r}static getMonthlyPayment(e,t,n){if(!e||!t||!n)return 0;const a=n/1200,s=Math.pow(1+a,12*t);return a/(s-1)*(e*s)}static getMonthlyInsurance(e,t){return e&&t?e*t/100/12:0}static getDynamicValue(e,t,n){return e&&t?e*Math.pow(1+t/100,n):0}static getComputedValue(e,t){if(!t)return 0;const{amount:n,term:a,interestRate:s,insuranceRate:o}=t;switch(e){case r.PAYMENT:return i.getMonthlyPayment(n,a,s);case r.INSURANCE:return i.getMonthlyInsurance(n,o);default:return 0}}}e.LoanSchedule=i,e.LoanScheduleAmortizationType=s,e.LoanScheduleCompute=r,Object.defineProperty(e,"__esModule",{value:!0})}));
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"index.umd.js","sources":["../src/utils/deepMerge.ts","../src/LoanScheduleAmortizationType.ts","../src/LoanScheduleCompute.ts","../src/config.ts","../src/LoanSchedule.ts"],"sourcesContent":["const deepMerge = (source: object, target: object): object => {\n\tfor (const key of Object.keys(source)) {\n\t\tif (source[key] instanceof Object && key in target) {\n\t\t\tObject.assign(source[key], deepMerge(target[key], source[key]))\n\t\t}\n\t}\n\tObject.assign(target || {}, source)\n\treturn target\n}\n\nexport default deepMerge","enum LoanScheduleAmortizationType {\n\tCREDIT = 'credit',\n\tDEBIT = 'debit'\n}\n\nexport default LoanScheduleAmortizationType","enum LoanScheduleCompute {\n\tPAYMENT = 'payment',\n\tINSURANCE = 'insurance'\n}\n\nexport default LoanScheduleCompute","export default {\n\theaders: {\n\t\tyear: {\n\t\t\tlabel: 'Year'\n\t\t},\n\t\tbalance: {\n\t\t\tlabel: 'Balance'\n\t\t}\n\t}\n}\n","import deepMerge from './utils/deepMerge'\nimport LoanScheduleAmortization from './LoanScheduleAmortization'\nimport LoanScheduleConfig from './LoanScheduleConfig'\nimport LoanScheduleAmortizationType from './LoanScheduleAmortizationType'\nimport LoanScheduleYears from './LoanScheduleYears'\nimport LoanScheduleSettings from './LoanScheduleSettings'\nimport LoanScheduleHeader from './LoanScheduleHeader'\nimport LoanScheduleCompute from './LoanScheduleCompute'\nimport defaultConfig from './config'\n\nexport interface ILoanSchedule {\n\treadonly loanSettings: LoanScheduleSettings\n\treadonly years: LoanScheduleYears\n}\n\nexport default class LoanSchedule implements ILoanSchedule {\n\treadonly loanSettings: LoanScheduleSettings\n\tprivate readonly loanAmortizations: LoanScheduleAmortization[]\n\tprivate readonly config: LoanScheduleConfig\n\n\tconstructor(loanSettings?: LoanScheduleSettings, loanAmortizations?: LoanScheduleAmortization[], config?: LoanScheduleConfig) {\n\t\tthis.loanSettings = loanSettings\n\t\tthis.loanAmortizations = loanAmortizations\n\t\tthis.config = deepMerge(config || {}, defaultConfig)\n\t}\n\n\tget years(): LoanScheduleYears {\n\t\treturn {\n\t\t\theaders: this.getHeaders(),\n\t\t\tvalues: this.getYears(),\n\t\t}\n\t}\n\n\tprivate getHeaders(): LoanScheduleHeader[] {\n\t\tconst { year: yearHeader, balance: balanceHeader } = this.config.headers\n\t\tconst amortizationHeaders: LoanScheduleHeader[] = this.loanAmortizations.map(({ label, type }: LoanScheduleHeader) => ({\n\t\t\tlabel,\n\t\t\ttype,\n\t\t}))\n\t\treturn [yearHeader, ...amortizationHeaders, balanceHeader]\n\t}\n\n\tprivate getYears(): number[][] {\n\t\tconst years: number[][] = []\n\t\tfor (let i: number = 0; i < this.loanSettings.term; i++) {\n\t\t\tyears.push(this.mapValues(this.loanAmortizations, i))\n\t\t}\n\t\treturn years\n\t}\n\n\tprivate mapValues(amortizations: LoanScheduleAmortization[], index: number): number[] {\n\t\tconst currentYear: number = new Date().getFullYear()\n\t\tlet balance: number = 0\n\t\tconst res: number[] = amortizations.reduce(\n\t\t\t(acc: number[], { value, rate, type, compute }: LoanScheduleAmortization) => {\n\t\t\t\t!!compute && (value = LoanSchedule.getComputedValue(compute, this.loanSettings))\n\t\t\t\t!!rate && (value = LoanSchedule.getDynamicValue(value, rate, index))\n\t\t\t\tbalance += value * (type === LoanScheduleAmortizationType.CREDIT ? 1 : -1)\n\t\t\t\treturn [...acc, value]\n\t\t\t},\n\t\t\t[currentYear + index]\n\t\t)\n\t\tres.push(balance)\n\t\treturn res\n\t}\n\n\tprivate static getMonthlyPayment(amount: number, term: number, interestRate: number): number {\n\t\tif (!amount || !term || !interestRate) return 0\n\t\tconst rate: number = interestRate / 1200\n\t\tconst pvif: number = Math.pow(1 + rate, term * 12)\n\t\treturn (rate / (pvif - 1)) * (amount * pvif)\n\t}\n\n\tprivate static getMonthlyInsurance(amount: number, insuranceRate: number): number {\n\t\tif (!amount || !insuranceRate) return 0\n\t\treturn (amount * insuranceRate) / 100 / 12\n\t}\n\n\tprivate static getDynamicValue(baseValue: number, rate: number, index: number): number {\n\t\tif (!baseValue || !rate) return 0\n\t\treturn baseValue * Math.pow(1 + rate / 100, index)\n\t}\n\n\tprivate static getComputedValue(compute: string, settings: LoanScheduleSettings): number {\n\t\tif (!settings) return 0\n\t\tconst { amount, term, interestRate, insuranceRate } = settings\n\t\tswitch (compute) {\n\t\t\tcase LoanScheduleCompute.PAYMENT:\n\t\t\t\treturn LoanSchedule.getMonthlyPayment(amount, term, interestRate)\n\t\t\tcase LoanScheduleCompute.INSURANCE:\n\t\t\t\treturn LoanSchedule.getMonthlyInsurance(amount, insuranceRate)\n\t\t\tdefault:\n\t\t\t\treturn 0\n\t\t}\n\t}\n}\n"],"names":["deepMerge","source","target","key","Object","keys","assign","LoanScheduleAmortizationType","LoanScheduleCompute","headers","year","label","balance","LoanSchedule","[object Object]","loanSettings","loanAmortizations","config","this","defaultConfig","years","getHeaders","values","getYears","yearHeader","balanceHeader","map","type","i","term","push","mapValues","amortizations","index","currentYear","Date","getFullYear","res","reduce","acc","value","rate","compute","getComputedValue","getDynamicValue","CREDIT","amount","interestRate","pvif","Math","pow","insuranceRate","baseValue","settings","PAYMENT","getMonthlyPayment","INSURANCE","getMonthlyInsurance"],"mappings":"wPAAA,MAAMA,EAAY,CAACC,EAAgBC,KAClC,IAAK,MAAMC,KAAOC,OAAOC,KAAKJ,GACzBA,EAAOE,aAAgBC,QAAUD,KAAOD,GAC3CE,OAAOE,OAAOL,EAAOE,GAAMH,EAAUE,EAAOC,GAAMF,EAAOE,KAI3D,OADAC,OAAOE,OAAOJ,GAAU,GAAID,GACrBC,GCPR,IAAKK,GAAL,SAAKA,GACJA,kBACAA,gBAFD,CAAKA,IAAAA,WCAAC,IDKUD,GCLf,SAAKC,GACJA,oBACAA,wBAFD,CAAKA,IAAAA,aAKUA,ICLA,CACdC,QAAS,CACRC,KAAM,CACLC,MAAO,QAERC,QAAS,CACRD,MAAO,mBCSWE,EAKpBC,YAAYC,EAAqCC,EAAgDC,GAChGC,KAAKH,aAAeA,EACpBG,KAAKF,kBAAoBA,EACzBE,KAAKD,OAASjB,EAAUiB,GAAU,GAAIE,GAGvCC,YACC,MAAO,CACNX,QAASS,KAAKG,aACdC,OAAQJ,KAAKK,YAIPT,aACP,MAAQJ,KAAMc,EAAYZ,QAASa,GAAkBP,KAAKD,OAAOR,QAKjE,MAAO,CAACe,KAJ0CN,KAAKF,kBAAkBU,IAAI,EAAGf,MAAAA,EAAOgB,KAAAA,OACtFhB,MAAAA,EACAgB,KAAAA,KAE2CF,GAGrCX,WACP,MAAMM,EAAoB,GAC1B,IAAK,IAAIQ,EAAY,EAAGA,EAAIV,KAAKH,aAAac,KAAMD,IACnDR,EAAMU,KAAKZ,KAAKa,UAAUb,KAAKF,kBAAmBY,IAEnD,OAAOR,EAGAN,UAAUkB,EAA2CC,GAC5D,MAAMC,GAAsB,IAAIC,MAAOC,cACvC,IAAIxB,EAAkB,EACtB,MAAMyB,EAAgBL,EAAcM,OACnC,CAACC,GAAiBC,MAAAA,EAAOC,KAAAA,EAAMd,KAAAA,EAAMe,QAAAA,MAClCA,IAAYF,EAAQ3B,EAAa8B,iBAAiBD,EAASxB,KAAKH,eAChE0B,IAASD,EAAQ3B,EAAa+B,gBAAgBJ,EAAOC,EAAMR,IAC7DrB,GAAW4B,GAASb,IAASpB,EAA6BsC,OAAS,GAAK,GACjE,IAAIN,EAAKC,IAEjB,CAACN,EAAcD,IAGhB,OADAI,EAAIP,KAAKlB,GACFyB,EAGAvB,yBAAyBgC,EAAgBjB,EAAckB,GAC9D,IAAKD,IAAWjB,IAASkB,EAAc,OAAO,EAC9C,MAAMN,EAAeM,EAAe,KAC9BC,EAAeC,KAAKC,IAAI,EAAIT,EAAa,GAAPZ,GACxC,OAAQY,GAAQO,EAAO,IAAOF,EAASE,GAGhClC,2BAA2BgC,EAAgBK,GAClD,OAAKL,GAAWK,EACRL,EAASK,EAAiB,IAAM,GADF,EAI/BrC,uBAAuBsC,EAAmBX,EAAcR,GAC/D,OAAKmB,GAAcX,EACZW,EAAYH,KAAKC,IAAI,EAAIT,EAAO,IAAKR,GADZ,EAIzBnB,wBAAwB4B,EAAiBW,GAChD,IAAKA,EAAU,OAAO,EACtB,MAAMP,OAAEA,EAAMjB,KAAEA,EAAIkB,aAAEA,EAAYI,cAAEA,GAAkBE,EACtD,OAAQX,GACP,KAAKlC,EAAoB8C,QACxB,OAAOzC,EAAa0C,kBAAkBT,EAAQjB,EAAMkB,GACrD,KAAKvC,EAAoBgD,UACxB,OAAO3C,EAAa4C,oBAAoBX,EAAQK,GACjD,QACC,OAAO"}