From e7dc369c4fd98202d7d10307e4c19d0edcd74796 Mon Sep 17 00:00:00 2001
From: Hyperling <me@hyperling.com>
Date: Sat, 8 Mar 2025 08:33:31 -0700
Subject: [PATCH] Projections are working! Just 1 issue noticed so far.
---
lib/pages/report.dart | 141 ++++++++++++++++++++++++++++++++++++++----
1 file changed, 129 insertions(+), 12 deletions(-)
diff --git a/lib/pages/report.dart b/lib/pages/report.dart
index f211fb8..abae849 100644
--- a/lib/pages/report.dart
+++ b/lib/pages/report.dart
@@ -7,9 +7,16 @@ import '/db.dart';
import '/models/tracked_item.dart';
/// TODO:
-/// - Projected Assets in:
-/// - 1 week, 1 month, 1 quarter, 1 year
-/// - 1/2 year? 2 years? 5 years? Allow customization?
+/// - Projected Assets:
+/// - Allow customization?
+/// - Fix bug where editing an item does not reflect immediately when returning to Reports page.
+/// - Currently reflects after going back to Reports the 2nd time.
+
+double _assetTotal = 0,
+ _expenseMonthly = 0,
+ _expenseYearly = 0,
+ _incomeMonthly = 0,
+ _incomeYearly = 0;
class ProjectionPage extends StatefulWidget {
const ProjectionPage({
@@ -23,6 +30,7 @@ class ProjectionPage extends StatefulWidget {
class _ProjectionPageState extends State<ProjectionPage> {
@override
Widget build(BuildContext context) {
+ // Summaries for display as well as calculation of totals for projections.
Widget expenseSummary = SummaryCardForTotals(
list: DatabaseHelper.instance.getExpenses(),
summaryTypeLabel: ItemType.expense.title,
@@ -36,16 +44,93 @@ class _ProjectionPageState extends State<ProjectionPage> {
summaryTypeLabel: ItemType.asset.title,
);
+ // Calculations for the projections.
+ double oneMonth = _assetTotal + _incomeMonthly - _expenseMonthly,
+ threeMonths = _assetTotal + (3 * (_incomeMonthly - _expenseMonthly)),
+ sixMonths = _assetTotal + (6 * (_incomeMonthly - _expenseMonthly)),
+ oneYear = _assetTotal + (_incomeYearly - _expenseYearly),
+ twoYears = _assetTotal + (2 * (_incomeYearly - _expenseYearly)),
+ fiveYears = _assetTotal + (5 * (_incomeYearly - _expenseYearly));
+
+ // Widgets to show the projections.
+ Widget proj1 = SummaryCard(
+ name: "One month from now...",
+ leftText: "",
+ middleText: oneMonth.toStringAsFixed(2),
+ rightText: "",
+ );
+ Widget proj2 = SummaryCard(
+ name: "Three months from now...",
+ leftText: "",
+ middleText: threeMonths.toStringAsFixed(2),
+ rightText: "",
+ );
+ Widget proj3 = SummaryCard(
+ name: "Half a year from now...",
+ leftText: "",
+ middleText: sixMonths.toStringAsFixed(2),
+ rightText: "",
+ );
+ Widget proj4 = SummaryCard(
+ name: "One year from now...",
+ leftText: "",
+ middleText: oneYear.toStringAsFixed(2),
+ rightText: "",
+ );
+ Widget proj5 = SummaryCard(
+ name: "Two years from now...",
+ leftText: "",
+ middleText: twoYears.toStringAsFixed(2),
+ rightText: "",
+ );
+ Widget proj6 = SummaryCard(
+ name: "Five years from now...",
+ leftText: "",
+ middleText: fiveYears.toStringAsFixed(2),
+ rightText: "",
+ );
+
+ // Return all of the UI elements.
return ListView(
children: [
+ TitleCard(title: "Summaries"),
expenseSummary,
incomeSummary,
assetSummary,
+ TitleCard(title: "Projections"),
+ proj1,
+ proj2,
+ proj3,
+ proj4,
+ proj5,
+ proj6,
],
);
}
}
+class TitleCard extends StatelessWidget {
+ const TitleCard({
+ super.key,
+ required this.title,
+ });
+
+ final String title;
+
+ @override
+ Widget build(BuildContext context) {
+ return Padding(
+ padding: const EdgeInsets.all(8.0),
+ child: Center(
+ child: Text(
+ title,
+ style: TextStyle(fontSize: 20),
+ ),
+ ),
+ );
+ }
+}
+
class SummaryCardForTotals extends StatelessWidget {
const SummaryCardForTotals({
super.key,
@@ -70,11 +155,16 @@ class SummaryCardForTotals extends StatelessWidget {
// Calculate the total fields based on item type.
double dailyTotal = 0, monthlyTotal = 0, yearlyTotal = 0;
- bool isAsset = false;
+ ItemType? itemType;
for (TrackedItem e in snapshot.data!) {
+ if (itemType == null) {
+ itemType = e.type!;
+ } else if (itemType != e.type) {
+ throw "List in SummaryCardForTotals has multiple item types, abort!";
+ }
+
if (e.type == ItemType.asset) {
monthlyTotal += e.amount;
- isAsset = true;
} else {
dailyTotal += e.calcComparableAmountDaily();
monthlyTotal += e.calcComparableAmountYearly() / 12;
@@ -82,11 +172,33 @@ class SummaryCardForTotals extends StatelessWidget {
}
}
+ /* Load page variables based on calculated totals. */
+ switch (itemType) {
+ case ItemType.asset:
+ _assetTotal = monthlyTotal;
+ break;
+
+ case ItemType.expense:
+ _expenseMonthly = monthlyTotal;
+ _expenseYearly = yearlyTotal;
+ break;
+
+ case ItemType.income:
+ _incomeMonthly = monthlyTotal;
+ _incomeYearly = yearlyTotal;
+ break;
+
+ default:
+ throw UnimplementedError(
+ "Item type ${itemType!.title} not handled in SummaryCardForTotals!",
+ );
+ }
+
/* Determine what needs displayed for the item type. */
// Header
String plural = snapshot.data!.length == 1 ? "" : "s";
String header = "$summaryTypeLabel Total";
- header += isAsset ? "" : "s";
+ header += itemType == ItemType.asset ? "" : "s";
header += " (${snapshot.data!.length} Item$plural)";
// Total Fields
@@ -97,7 +209,7 @@ class SummaryCardForTotals extends StatelessWidget {
yearlyEstimate =
yearlyTotal.toStringAsFixed(3).endsWith("0") ? "" : "~";
String leftText = "", middleText = "", rightText = "";
- if (isAsset) {
+ if (itemType == ItemType.asset) {
middleText = "$monthlyEstimate${monthlyTotal.toStringAsFixed(2)}";
} else {
leftText = "$dailyEstimate${dailyTotal.toStringAsFixed(2)} Daily";
@@ -118,7 +230,7 @@ class SummaryCardForTotals extends StatelessWidget {
}
}
-class SummaryCard extends StatelessWidget {
+class SummaryCard extends StatefulWidget {
const SummaryCard({
super.key,
required this.name,
@@ -132,6 +244,11 @@ class SummaryCard extends StatelessWidget {
final String middleText;
final String rightText;
+ @override
+ State<SummaryCard> createState() => _SummaryCardState();
+}
+
+class _SummaryCardState extends State<SummaryCard> {
@override
Widget build(BuildContext context) {
return Card(
@@ -143,7 +260,7 @@ class SummaryCard extends StatelessWidget {
child: Column(
children: [
Text(
- name,
+ widget.name,
style: TextStyle(
decoration: TextDecoration.underline,
fontSize: 16,
@@ -155,19 +272,19 @@ class SummaryCard extends StatelessWidget {
flex: 3,
),
Text(
- leftText,
+ widget.leftText,
),
Spacer(
flex: 1,
),
Text(
- middleText,
+ widget.middleText,
),
Spacer(
flex: 1,
),
Text(
- rightText,
+ widget.rightText,
),
Spacer(
flex: 3,