commit e0f7eaffbccc6a39d54d4cf7d476c620ccbf239f
Author: Vivek Teega <vivek.teega@gmail.com>
Date:   Sun May 28 03:16:55 2023 +0530

    Initiated Class and functions to query Google Sheets. Fetches financial data and prints values

diff --git a/.gitignore b/.gitignore
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index 0000000..9a030b8
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+++ b/.gitignore
@@ -0,0 +1,2 @@
+access_token.json
+sheet_data.json
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diff --git a/fetch_finance_data.js b/fetch_finance_data.js
new file mode 100644
index 0000000..d2d9514
--- /dev/null
+++ b/fetch_finance_data.js
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+const { google } = require('googleapis');
+const privatekey = require('./access_token.json');
+const sheet_data = require('./sheet_data.json');
+
+class RanchiMallData {
+  constructor() {
+    this.productionCost = 0;
+    this.consumptionCost = 0;
+    this.productionValuation = 0;
+    this.consumptionValuation = 0;
+    this.spreadsheetId = sheet_data.spreadsheetId;
+  }
+
+  async fetchProductionData() {
+    const auth = new google.auth.JWT(
+      privatekey.client_email,
+      null,
+      privatekey.private_key,
+      ['https://www.googleapis.com/auth/spreadsheets']
+    );
+
+    const sheets = google.sheets({ version: 'v4', auth });
+
+    try {
+
+      const response = await sheets.spreadsheets.values.get({
+        spreadsheetId: this.spreadsheetId,
+        range: sheet_data.TR_Expenses_range, // Assuming consumption data is in column B, starting from row 7
+        valueRenderOption: 'FORMULA' // Fetch the formula values instead of the displayed values
+      });
+      
+      const consumptionData = response.data.values;
+      if (consumptionData) {
+        let sum = 0;
+        for (const row of consumptionData) {
+          const value = parseFloat(row[0]);
+          if (!isNaN(value)) {
+            sum += value;
+          }
+        }
+        this.productionCost = sum;
+      }
+    } catch (error) {
+      console.error('Error fetching production data:', error);
+    }
+  }
+
+  async fetchConsumptionData() {
+    const auth = new google.auth.JWT(
+      privatekey.client_email,
+      null,
+      privatekey.private_key,
+      ['https://www.googleapis.com/auth/spreadsheets']
+    );
+
+    const sheets = google.sheets({ version: 'v4', auth });
+
+    try {
+
+      const response = await sheets.spreadsheets.values.get({
+        spreadsheetId: this.spreadsheetId,
+        range: sheet_data.TR_Expenses_range, // Assuming consumption data is in column B, starting from row 7
+        valueRenderOption: 'FORMULA' // Fetch the formula values instead of the displayed values
+      });
+      
+      const consumptionData = response.data.values;
+      if (consumptionData) {
+        let sum = 0;
+        for (const row of consumptionData) {
+          const value = parseFloat(row[0]);
+          if (!isNaN(value)) {
+            sum += value;
+          }
+        }
+        this.consumptionCost = sum
+      }
+    } catch (error) {
+      console.error('Error fetching consumption data:', error);
+    }
+  }
+
+  calculateConsumptionValuation() {
+    this.consumptionValuation = this.consumptionCost * 0.8;
+    return this.consumptionValuation;
+  }
+
+  calculateProductionValuation() {
+    this.productionValuation = this.productionCost * 1.2;
+    return this.productionValuation;
+  }
+
+  calculateSystemValuation() {
+    return Math.max(this.productionValuation, this.consumptionValuation);
+  }
+}
+
+// Example usage
+async function fetchDataFromGoogleSheet() {
+  const ranchiMallData = new RanchiMallData();
+  
+  await ranchiMallData.fetchProductionData();
+  await ranchiMallData.fetchConsumptionData();
+
+  console.log('Total production cost for RanchiMall:', ranchiMallData.productionCost);
+  console.log('Total consumption cost by users:', ranchiMallData.consumptionCost);
+  console.log('Total pxpense valuation of RanchiMall:', ranchiMallData.calculateProductionValuation());
+  console.log('Total consumption valuation of users:', ranchiMallData.calculateConsumptionValuation());
+  console.log('System valuation:', ranchiMallData.calculateSystemValuation());
+}
+
+fetchDataFromGoogleSheet();
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