From 9e883631ecddfe1e116ea8afb97c95031c4c3714 Mon Sep 17 00:00:00 2001
From: John Ahlroos <john@ahlroos.me>
Date: Tue, 20 Apr 2021 13:00:12 +0300
Subject: [PATCH] Add Helen parser

---
 README.md                                     |  11 +-
 .../com/devsoap/parsers/caruna/Parser.class   | Bin 6652 -> 6640 bytes
 .../parsers/{caruna => helen}/Parser.java     |   8 +-
 helen-invoice/build.gradle                    |   1 +
 .../devsoap/parsers/helen/Parser$Period.class | Bin 0 -> 1224 bytes
 .../com/devsoap/parsers/helen/Parser.class    | Bin 0 -> 8474 bytes
 .../compileJava/source-classes-mapping.txt    |   3 +
 .../com/devsoap/parsers/helen/Parser.java     | 126 ++++++++++++++++++
 settings.gradle                               |   1 +
 9 files changed, 142 insertions(+), 8 deletions(-)
 rename caruna-invoice/src/main/java/com/devsoap/parsers/{caruna => helen}/Parser.java (96%)
 create mode 100644 helen-invoice/build.gradle
 create mode 100644 helen-invoice/build/classes/java/main/com/devsoap/parsers/helen/Parser$Period.class
 create mode 100644 helen-invoice/build/classes/java/main/com/devsoap/parsers/helen/Parser.class
 create mode 100644 helen-invoice/build/tmp/compileJava/source-classes-mapping.txt
 create mode 100644 helen-invoice/src/main/java/com/devsoap/parsers/helen/Parser.java

diff --git a/README.md b/README.md
index 7e6b0b4..dd60e8f 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,13 @@ This project contains different PDF parsers for my personal use. Feel free to co
 ### Caruna Invoice Parser
 PDF parser to parse Caruna invoices.
 
-Usage: ``./gradlew :caruna-invoice:run --args="/path/to/pdf"``
\ No newline at end of file
+Usage: ``./gradlew :caruna-invoice:run --args="/path/to/pdf"``
+
+
+### Helen Invoice Parser
+PDF parser to parse Helen invoices.
+
+Usage: ``./gradlew :helen-invoice:run --args="/path/to/pdf"``
+
+
+
diff --git a/caruna-invoice/build/classes/java/main/com/devsoap/parsers/caruna/Parser.class b/caruna-invoice/build/classes/java/main/com/devsoap/parsers/caruna/Parser.class
index ab92d8dee796a80492e1d082901c77c97a60026f..3d50a8a273151a0899f78289d7b779367d920db7 100644
GIT binary patch
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diff --git a/caruna-invoice/src/main/java/com/devsoap/parsers/caruna/Parser.java b/caruna-invoice/src/main/java/com/devsoap/parsers/helen/Parser.java
similarity index 96%
rename from caruna-invoice/src/main/java/com/devsoap/parsers/caruna/Parser.java
rename to caruna-invoice/src/main/java/com/devsoap/parsers/helen/Parser.java
index 285b003..1ad5363 100644
--- a/caruna-invoice/src/main/java/com/devsoap/parsers/caruna/Parser.java
+++ b/caruna-invoice/src/main/java/com/devsoap/parsers/helen/Parser.java
@@ -1,25 +1,19 @@
-package com.devsoap.parsers.caruna;
+package com.devsoap.parsers.helen;
 
 import com.itextpdf.kernel.pdf.PdfDocument;
-import com.itextpdf.kernel.pdf.PdfPage;
 import com.itextpdf.kernel.pdf.PdfReader;
 import com.itextpdf.kernel.pdf.canvas.parser.PdfTextExtractor;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.text.DateFormat;
-import java.text.ParseException;
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;
 import java.time.format.FormatStyle;
 import java.time.format.TextStyle;
-import java.util.Date;
 import java.util.Locale;
 import java.util.Objects;
 import java.util.Scanner;
-import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public class Parser {
diff --git a/helen-invoice/build.gradle b/helen-invoice/build.gradle
new file mode 100644
index 0000000..f1d9f1e
--- /dev/null
+++ b/helen-invoice/build.gradle
@@ -0,0 +1 @@
+application.mainClass='com.devsoap.parsers.helen.Parser'
diff --git a/helen-invoice/build/classes/java/main/com/devsoap/parsers/helen/Parser$Period.class b/helen-invoice/build/classes/java/main/com/devsoap/parsers/helen/Parser$Period.class
new file mode 100644
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GIT binary patch
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new file mode 100644
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diff --git a/helen-invoice/build/tmp/compileJava/source-classes-mapping.txt b/helen-invoice/build/tmp/compileJava/source-classes-mapping.txt
new file mode 100644
index 0000000..7b6ed76
--- /dev/null
+++ b/helen-invoice/build/tmp/compileJava/source-classes-mapping.txt
@@ -0,0 +1,3 @@
+com/devsoap/parsers/helen/Parser.java
+ com.devsoap.parsers.helen.Parser
+ com.devsoap.parsers.helen.Parser$Period
diff --git a/helen-invoice/src/main/java/com/devsoap/parsers/helen/Parser.java b/helen-invoice/src/main/java/com/devsoap/parsers/helen/Parser.java
new file mode 100644
index 0000000..d7726d9
--- /dev/null
+++ b/helen-invoice/src/main/java/com/devsoap/parsers/helen/Parser.java
@@ -0,0 +1,126 @@
+package com.devsoap.parsers.helen;
+
+import com.itextpdf.kernel.pdf.PdfDocument;
+import com.itextpdf.kernel.pdf.PdfReader;
+import com.itextpdf.kernel.pdf.canvas.parser.PdfTextExtractor;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.nio.file.Paths;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.time.format.FormatStyle;
+import java.time.format.TextStyle;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Objects;
+import java.util.Scanner;
+import java.util.function.Function;
+import java.util.regex.Pattern;
+
+public class Parser {
+
+    private static final Pattern PERUSMAKSU_PATTERN = Pattern.compile(
+            "perusmaksu (\\d\\d?\\.\\d\\d?\\.\\d\\d\\d\\d)-(\\d\\d?\\.\\d\\d?\\.\\d\\d\\d\\d).* (\\d*,\\d\\d) e");
+    private static final Pattern ENERGIA_PATTERN = Pattern.compile(
+            "energia (\\d\\d?\\.\\d\\d?\\.\\d\\d\\d\\d)-(\\d\\d?\\.\\d\\d?\\.\\d\\d\\d\\d) ([0-9 ]*) kWh (\\d+,\\d\\d) c");
+
+
+    private static final Locale FI_LOCALE = new Locale("FI", "fi");
+    private static final DateTimeFormatter FI_DATE = DateTimeFormatter
+            .ofLocalizedDate(FormatStyle.SHORT)
+            .withLocale(FI_LOCALE);
+
+
+
+    static class Period {
+        double basicPay = 0.0;
+        int dayEnergy = 0;
+        int nightEnergy = 0;
+        double dayEnergyEur = 0.0;
+        double nightEnergyEur = 0.0;
+
+        @Override
+        public String toString() {
+            return "Period{" +
+                    "basicPay=" + basicPay +
+                    ", dayEnergy=" + dayEnergy +
+                    ", nightEnergy=" + nightEnergy +
+                    ", dayEnergyEur=" + dayEnergyEur +
+                    ", nightEnergyEur=" + nightEnergyEur +
+                    '}';
+        }
+    }
+
+    public static void main(String[] args) {
+        var filename = args[0];
+        var daySiirtoKwh = 937;
+        var nightSiirtoKwh = 920;
+
+        var file = Paths.get(filename);
+        try(var reader = new PdfReader(file.toFile())) {
+            var document = new PdfDocument(reader);
+            var page2 = document.getPage(2);
+            var text = PdfTextExtractor.getTextFromPage(page2);
+
+            var scanner = new Scanner(text);
+
+            System.out.println("Kuukausi,Perusmaksu (energia),Perusmaksu (siirto),Päiväenergia (kWh),Päiväenergia " +
+                    "(EUR),Yöenergia (kWh),Yöenergia (EUR),Päiväsiirto (kWh),Päiväsiirto (EUR),Yösiirto (kWh)" +
+                    ",Yösiirto (EUR),Vero");
+
+            var periods = new HashMap<String, Period>();
+
+            while(scanner.hasNextLine()) {
+                var line = scanner.nextLine();
+                if(PERUSMAKSU_PATTERN.asPredicate().test(line)) {
+                    var matcher = PERUSMAKSU_PATTERN.matcher(line);
+                    while (matcher.find()) {
+                         var month = LocalDate.from( FI_DATE.parse(matcher.group(1)))
+                                .getMonth().getDisplayName(TextStyle.FULL, new Locale("FI","fi"));
+                         month = month.substring(0,1).toUpperCase() + month.substring(1, month.length()-2);
+                         var  basicPay = Double.parseDouble(matcher.group(3).replace(",", "."));
+
+                         periods.computeIfAbsent(month, s -> new Period());
+                         periods.computeIfPresent(month, (s,p) -> {
+                             p.basicPay =basicPay;
+                             return p;
+                         });
+                    }
+                } else if(ENERGIA_PATTERN.asPredicate().test(line)) {
+                    var matcher = ENERGIA_PATTERN.matcher(line);
+                    while (matcher.find()) {
+                        var month = LocalDate.from( FI_DATE.parse(matcher.group(1)))
+                                .getMonth().getDisplayName(TextStyle.FULL, new Locale("FI","fi"));
+                        month = month.substring(0,1).toUpperCase() + month.substring(1, month.length()-2);
+
+                        var totalEnergy = Integer.parseInt(matcher.group(3)
+                                .replace(" ", ""));
+                        var eurPerKwh = Double.parseDouble(matcher.group(4)
+                                .replace(",", ".")) / 100.0;
+
+                        periods.computeIfAbsent(month, s -> new Period());
+                        periods.computeIfPresent(month, (s,p) -> {
+                            p.dayEnergy = totalEnergy - nightSiirtoKwh;
+                            p.dayEnergyEur = p.dayEnergy * eurPerKwh;
+                            p.nightEnergy = totalEnergy - daySiirtoKwh;
+                            p.nightEnergyEur = p.nightEnergy * eurPerKwh;
+                            return p;
+                        });
+                    }
+                }
+            }
+
+            periods.forEach((month,period ) -> {
+                var csv = String.format("%s,%.02f,,%d,%.02f,%d,%.02f,,,,", month, period.basicPay,
+                        period.dayEnergy, period.dayEnergyEur,period.nightEnergy, period.nightEnergyEur);
+                System.out.println(csv);
+            });
+
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/settings.gradle b/settings.gradle
index b9d1d89..fba2639 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,3 +1,4 @@
 rootProject.name = 'pdf-parsers'
 include 'caruna-invoice'
+include 'helen-invoice'