From d64db4d3167c564bab3cf9a38297a99128b1be4a Mon Sep 17 00:00:00 2001
From: Jakob Stornig <jastornig@edu.aau.at>
Date: Wed, 20 Dec 2023 22:52:57 +0100
Subject: [PATCH] dev: populate db with random data

---
 services/database.ts | 50 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/services/database.ts b/services/database.ts
index 386ee09..ec1528b 100644
--- a/services/database.ts
+++ b/services/database.ts
@@ -4,6 +4,7 @@ import * as SQLite from "expo-sqlite";
 import uuid from "react-native-uuid";
 
 import { Query } from "expo-sqlite";
+import { SimpleDate } from "../util/SimpleDate";
 
 const db = SQLite.openDatabase("interactive_systeme.db");
 
@@ -87,6 +88,9 @@ export const deleteExpense = async (guid: string) => {
 export const executeQuery = async (query: string) => {
     const sqliteQuary: Query[] = [{sql: query, args: []}];    
     const result = await db.execAsync(sqliteQuary, true);
+    if("error" in result[0]){
+        throw result[0].error
+    }
     return result;
 }
 
@@ -101,6 +105,18 @@ export const deleteExpenses = async () => {
     }
 }
 
+export const deleteCategories = async () => {
+    try {
+        await db.transactionAsync(async (tx: SQLite.SQLTransactionAsync) => {
+            await tx.executeSqlAsync("DELETE FROM category;");
+        }); 
+        console.log("deleteCategories")
+    } catch(error) {
+        console.log("Error deleting category: ", error);
+        throw error;
+    }
+}
+
 export const deleteDatabase = () => {
     closeDatabase().then(() => {
         try {
@@ -122,3 +138,37 @@ const closeDatabase = async () => {
         throw error;
     }
 }
+
+
+export const DEV_populateDatabase = async () => {
+    try {
+        await deleteCategories();
+        await deleteExpenses()
+
+        const colors = ["red", "blue", "green", "purple", "yellow"]
+
+        for(let i=0; i < 5; i++){
+            let random = Math.floor(Math.random() * colors.length);
+            await addCategory(`Category ${i}`, colors[random], "budget")
+        }
+        const result = await executeQuery("SELECT * from category")
+        let categories: {[column: string]: any}[];
+        if("rows" in result[0]){
+            categories = result[0]["rows"]
+        }else{
+            throw new Error("WHATHEFUCK")
+        }
+        console.log(categories)
+
+        let date = new Date()
+        for(let i = 0; i < 15; i++){
+            let random = Math.floor(Math.random() * categories.length);
+            let randomDay = Math.floor(Math.random() * 20)
+            date.setDate(randomDay)
+            let string = new SimpleDate(date).toISOString()
+            await addExpense(`Expense ${i}`, categories[random].guid, string, 15)
+        }
+    } catch(e){
+        console.error(e)
+    }
+}