Add miscellaneous cost calculator and add to main state

Signed-off-by: Giovanni Baratta <[email protected]>

src/App.tsx

@@ -34,6 +34,7 @@ import {HouseComponent} from "./components/HouseComponent.tsx"
 import {Info} from "./components/InfoComponent.tsx"
 import {MiscellaneousCostsComponent} from "./components/MiscellaneousComponent.tsx"
 import MiscellaneousServicesTwoToneIcon from "@mui/icons-material/MiscellaneousServicesTwoTone"
+import {buildMiscellaneousExpensesCalculator} from "./model/miscellaneous.ts"
 
 const ONE_YEAR_IN_MS = 1 * 1000 * 60 * 60 * 24 * 365
 
@@ -44,6 +45,7 @@ function App() {
   const carState = useAppSelector(state => state.car)
   const incomeState = useAppSelector(state => state.income)
   const houseState = useAppSelector(state => state.house)
+  const miscellaneousState = useAppSelector(state => state.miscellaneous)
 
   const records: Report[] = []
 
@@ -115,6 +117,10 @@ function App() {
   }
 
   const houseAgencyCalculator = buildHouseAgencyExpensesCalculator(houseAgencyCosts)
+  const miscellaneousCostsCalculator = buildMiscellaneousExpensesCalculator({
+    tari: miscellaneousState.tari,
+    canoneRai: miscellaneousState.canoneRai
+  })
 
   while (simulationCurrentDate.getTime() < simulationEndingDate.getTime()) {
 
@@ -128,11 +134,17 @@ function App() {
     const houseReport = houseCalculator.computeMonthlyReport(period)
     const furnitureReport = furnitureCalculator.computeMonthlyReport(period)
     const houseAgencyReport = houseAgencyCalculator.computeMonthlyReport(period)
+    const miscellaneuousCostsReport = miscellaneousCostsCalculator.computeMonthlyReport(period)
 
     const record: Report = {
       date: simulationCurrentDate,
       income: incomeReport.totalIncome,
-      totalMonthExpenses: carReport.totalExpenses + houseReport.totalExpenses + furnitureReport.totalExpenses + houseAgencyReport.totalExpenses
+      totalMonthExpenses: carReport.totalExpenses +
+        incomeReport.totalExpenses +
+        houseReport.totalExpenses +
+        furnitureReport.totalExpenses +
+        houseAgencyReport.totalExpenses +
+        miscellaneuousCostsReport.totalExpenses
     }
 
     records.push(record)

src/model/miscellaneous.ts

@@ -0,0 +1,51 @@
+import {Month, MonthlyReport, Period} from "./monthly-report.ts"
+
+const CANONE_RAI_MONTH = Month.January
+const TARI_MONTHS = [Month.April, Month.August, Month.November]
+
+const MISCELLANEOUS_COMPONENT = "Miscellaneous"
+
+interface MiscellaneousCosts {
+  canoneRai: number
+  tari: number
+}
+
+export type MiscellaneousCostsCalculator = MiscellaneousCosts & {
+  computeMonthlyReport: (period: Period) => MonthlyReport
+}
+
+export function buildMiscellaneousExpensesCalculator(config: MiscellaneousCosts): MiscellaneousCostsCalculator {
+  return {
+    ...config,
+    computeMonthlyReport: computeMonthlyCosts(config)
+  }
+}
+
+function computeMonthlyCosts(config: MiscellaneousCosts): (period: Period) => MonthlyReport {
+
+  const {canoneRai, tari} = config
+  const tariSplitPayment = tari / TARI_MONTHS.length
+
+  return (period: Period): MonthlyReport => {
+
+    const isRaiPeriod = period.month === CANONE_RAI_MONTH
+    const isTariPeriod = TARI_MONTHS.includes(period.month)
+
+    const raiCosts = isRaiPeriod ? canoneRai : 0
+    const tariCosts = isTariPeriod ? tariSplitPayment : 0
+
+    const totalExpenses = raiCosts + tariCosts
+
+    return {
+      period,
+      component: MISCELLANEOUS_COMPONENT,
+      totalIncome: 0,
+      totalExpenses,
+      detailedExpenses: {
+        ...(raiCosts > 0 && {rai: raiCosts}),
+        ...(tariCosts > 0 && {tari: tariCosts})
+      }
+    }
+
+  }
+}