From e16ca0ed125d1857a0713c3bbf176397767b123d Mon Sep 17 00:00:00 2001
From: Kostas Kougios <kostas.kougios@googlemail.com>
Date: Fri, 5 Apr 2024 16:33:16 +0100
Subject: [PATCH] -

---
 example-scripts/budget.sc     | 36 +++++++++++++++++++++++++++++++++++
 example-scripts/project.scala |  2 +-
 2 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100755 example-scripts/budget.sc

diff --git a/example-scripts/budget.sc b/example-scripts/budget.sc
new file mode 100755
index 0000000..82dc636
--- /dev/null
+++ b/example-scripts/budget.sc
@@ -0,0 +1,36 @@
+#!/usr/bin/env -S scala-cli
+
+//> using file project.scala
+import org.terminal21.client.components.chakra.QuickTable
+import java.time.LocalDate
+
+import org.terminal21.client.*
+import org.terminal21.client.components.*
+import org.terminal21.client.components.std.*
+
+Sessions
+  .withNewSession("budget", "Personal Budget Calculator")
+  .connect: session =>
+    given ConnectedSession = session
+
+    println(new BudgetPage(BudgetForm()).run)
+
+case class BudgetForm(startDate: LocalDate = LocalDate.of(2024, 4, 1), initialBudget: Int = 1000, percentIncreasePerYear: Float = 4f / 100f)
+
+class BudgetPage(initialForm: BudgetForm)(using ConnectedSession):
+  def run: Option[BudgetForm] =
+    controller.render(initialForm).run()
+
+  def components(form: BudgetForm, events: Events): MV[BudgetForm] =
+
+    case class Row(date: LocalDate, budget: Float, total: Float)
+    val rows = (1 to 30 * 12).foldLeft(Seq.empty[Row]): (rows, month) =>
+      val date = form.startDate.plusMonths(month)
+      val budget = form.initialBudget + form.initialBudget * ((month / 12) * form.percentIncreasePerYear)
+      val total = rows.map(_.budget).sum + budget
+      rows :+ Row(date, budget, total)
+    val table = QuickTable().withHeaders("Date", "Budget", "Total").withRows(rows.map(r => Seq(r.date, r.budget, r.total)))
+
+    MV(form, table)
+
+  def controller: Controller[BudgetForm] = Controller(components)
diff --git a/example-scripts/project.scala b/example-scripts/project.scala
index 4cd6873..9ea7cdc 100644
--- a/example-scripts/project.scala
+++ b/example-scripts/project.scala
@@ -5,6 +5,6 @@
 //> using dep io.github.kostaskougios::terminal21-nivo:0.30
 //> using dep io.github.kostaskougios::terminal21-mathjax:0.30
 
-//> using dep commons-io:commons-io:2.15.1
+//> using dep commons-io:commons-io:2.16.0
 
 //> using javaOpt -Xmx128m