From 87e4a5a4fdfa7575b47d3cceffff871858b60868 Mon Sep 17 00:00:00 2001
From: Lio Novelli <liopold@drunomics.com>
Date: Wed, 22 Sep 2021 23:46:07 +0200
Subject: [PATCH] Automate pdf export with default tokens.

---
 app/composer.json                            |   3 +-
 app/composer.lock                            | 471 ++++++++++++++++++-
 app/config/invoice-template.html             |  46 +-
 app/config/packages/translation.yml          |   6 +
 app/config/rprt.example.config.yaml          |  10 +-
 app/src/Commands/RprtCommand.php             |  25 +-
 app/src/Utils/CsvReport/CsvReport.php        |   9 +-
 app/src/Utils/PdfExport/PdfExportService.php | 112 ++++-
 8 files changed, 632 insertions(+), 50 deletions(-)
 create mode 100644 app/config/packages/translation.yml

diff --git a/app/composer.json b/app/composer.json
index 8820a0d..67466a3 100644
--- a/app/composer.json
+++ b/app/composer.json
@@ -18,7 +18,8 @@
         "guzzlehttp/guzzle": "^7.3",
         "php-di/php-di": "^6.3",
         "symfony/yaml": "^5.2",
-        "mpdf/mpdf": "^8.0"
+        "mpdf/mpdf": "^8.0",
+        "swiftmailer/swiftmailer": "^6.2"
     },
     "autoload": {
         "psr-4": {
diff --git a/app/composer.lock b/app/composer.lock
index 400ceb3..232e484 100644
--- a/app/composer.lock
+++ b/app/composer.lock
@@ -4,8 +4,156 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e6f2abc31fc53724d858e127ce02978e",
+    "content-hash": "cbb7d7281f9622e5b410185c54558b28",
     "packages": [
+        {
+            "name": "doctrine/lexer",
+            "version": "1.2.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/doctrine/lexer.git",
+                "reference": "e864bbf5904cb8f5bb334f99209b48018522f042"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/doctrine/lexer/zipball/e864bbf5904cb8f5bb334f99209b48018522f042",
+                "reference": "e864bbf5904cb8f5bb334f99209b48018522f042",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2 || ^8.0"
+            },
+            "require-dev": {
+                "doctrine/coding-standard": "^6.0",
+                "phpstan/phpstan": "^0.11.8",
+                "phpunit/phpunit": "^8.2"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.2.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Doctrine\\Common\\Lexer\\": "lib/Doctrine/Common/Lexer"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Guilherme Blanco",
+                    "email": "guilhermeblanco@gmail.com"
+                },
+                {
+                    "name": "Roman Borschel",
+                    "email": "roman@code-factory.org"
+                },
+                {
+                    "name": "Johannes Schmitt",
+                    "email": "schmittjoh@gmail.com"
+                }
+            ],
+            "description": "PHP Doctrine Lexer parser library that can be used in Top-Down, Recursive Descent Parsers.",
+            "homepage": "https://www.doctrine-project.org/projects/lexer.html",
+            "keywords": [
+                "annotations",
+                "docblock",
+                "lexer",
+                "parser",
+                "php"
+            ],
+            "support": {
+                "issues": "https://github.com/doctrine/lexer/issues",
+                "source": "https://github.com/doctrine/lexer/tree/1.2.1"
+            },
+            "funding": [
+                {
+                    "url": "https://www.doctrine-project.org/sponsorship.html",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://www.patreon.com/phpdoctrine",
+                    "type": "patreon"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/doctrine%2Flexer",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2020-05-25T17:44:05+00:00"
+        },
+        {
+            "name": "egulias/email-validator",
+            "version": "3.1.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/egulias/EmailValidator.git",
+                "reference": "c81f18a3efb941d8c4d2e025f6183b5c6d697307"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/egulias/EmailValidator/zipball/c81f18a3efb941d8c4d2e025f6183b5c6d697307",
+                "reference": "c81f18a3efb941d8c4d2e025f6183b5c6d697307",
+                "shasum": ""
+            },
+            "require": {
+                "doctrine/lexer": "^1.2",
+                "php": ">=7.2",
+                "symfony/polyfill-intl-idn": "^1.15"
+            },
+            "require-dev": {
+                "php-coveralls/php-coveralls": "^2.2",
+                "phpunit/phpunit": "^8.5.8|^9.3.3",
+                "vimeo/psalm": "^4"
+            },
+            "suggest": {
+                "ext-intl": "PHP Internationalization Libraries are required to use the SpoofChecking validation"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Egulias\\EmailValidator\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Eduardo Gulias Davis"
+                }
+            ],
+            "description": "A library for validating emails against several RFCs",
+            "homepage": "https://github.com/egulias/EmailValidator",
+            "keywords": [
+                "email",
+                "emailvalidation",
+                "emailvalidator",
+                "validation",
+                "validator"
+            ],
+            "support": {
+                "issues": "https://github.com/egulias/EmailValidator/issues",
+                "source": "https://github.com/egulias/EmailValidator/tree/3.1.1"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/egulias",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-04-01T18:37:14+00:00"
+        },
         {
             "name": "guzzlehttp/guzzle",
             "version": "7.3.0",
@@ -864,6 +1012,81 @@
             ],
             "time": "2021-02-11T11:37:01+00:00"
         },
+        {
+            "name": "swiftmailer/swiftmailer",
+            "version": "v6.2.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/swiftmailer/swiftmailer.git",
+                "reference": "15f7faf8508e04471f666633addacf54c0ab5933"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/swiftmailer/swiftmailer/zipball/15f7faf8508e04471f666633addacf54c0ab5933",
+                "reference": "15f7faf8508e04471f666633addacf54c0ab5933",
+                "shasum": ""
+            },
+            "require": {
+                "egulias/email-validator": "^2.0|^3.1",
+                "php": ">=7.0.0",
+                "symfony/polyfill-iconv": "^1.0",
+                "symfony/polyfill-intl-idn": "^1.10",
+                "symfony/polyfill-mbstring": "^1.0"
+            },
+            "require-dev": {
+                "mockery/mockery": "^1.0",
+                "symfony/phpunit-bridge": "^4.4|^5.0"
+            },
+            "suggest": {
+                "ext-intl": "Needed to support internationalized email addresses"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "6.2-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "lib/swift_required.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Chris Corbyn"
+                },
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                }
+            ],
+            "description": "Swiftmailer, free feature-rich PHP mailer",
+            "homepage": "https://swiftmailer.symfony.com",
+            "keywords": [
+                "email",
+                "mail",
+                "mailer"
+            ],
+            "support": {
+                "issues": "https://github.com/swiftmailer/swiftmailer/issues",
+                "source": "https://github.com/swiftmailer/swiftmailer/tree/v6.2.7"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/swiftmailer/swiftmailer",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-03-09T12:30:35+00:00"
+        },
         {
             "name": "symfony/console",
             "version": "v5.2.6",
@@ -1056,6 +1279,86 @@
             ],
             "time": "2021-01-07T16:49:33+00:00"
         },
+        {
+            "name": "symfony/polyfill-iconv",
+            "version": "v1.23.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-iconv.git",
+                "reference": "63b5bb7db83e5673936d6e3b8b3e022ff6474933"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-iconv/zipball/63b5bb7db83e5673936d6e3b8b3e022ff6474933",
+                "reference": "63b5bb7db83e5673936d6e3b8b3e022ff6474933",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "suggest": {
+                "ext-iconv": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.23-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Iconv\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for the Iconv extension",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "iconv",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-iconv/tree/v1.23.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-05-27T09:27:20+00:00"
+        },
         {
             "name": "symfony/polyfill-intl-grapheme",
             "version": "v1.22.1",
@@ -1120,6 +1423,93 @@
             ],
             "time": "2021-01-22T09:19:47+00:00"
         },
+        {
+            "name": "symfony/polyfill-intl-idn",
+            "version": "v1.23.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-intl-idn.git",
+                "reference": "65bd267525e82759e7d8c4e8ceea44f398838e65"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-intl-idn/zipball/65bd267525e82759e7d8c4e8ceea44f398838e65",
+                "reference": "65bd267525e82759e7d8c4e8ceea44f398838e65",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1",
+                "symfony/polyfill-intl-normalizer": "^1.10",
+                "symfony/polyfill-php72": "^1.10"
+            },
+            "suggest": {
+                "ext-intl": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.23-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Idn\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Laurent Bassin",
+                    "email": "laurent@bassin.info"
+                },
+                {
+                    "name": "Trevor Rowbotham",
+                    "email": "trevor.rowbotham@pm.me"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "idn",
+                "intl",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-intl-idn/tree/v1.23.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-05-27T09:27:20+00:00"
+        },
         {
             "name": "symfony/polyfill-intl-normalizer",
             "version": "v1.22.1",
@@ -1250,6 +1640,82 @@
             ],
             "time": "2021-01-22T09:19:47+00:00"
         },
+        {
+            "name": "symfony/polyfill-php72",
+            "version": "v1.23.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php72.git",
+                "reference": "9a142215a36a3888e30d0a9eeea9766764e96976"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/9a142215a36a3888e30d0a9eeea9766764e96976",
+                "reference": "9a142215a36a3888e30d0a9eeea9766764e96976",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.23-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php72\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php72/tree/v1.23.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-05-27T09:17:38+00:00"
+        },
         {
             "name": "symfony/polyfill-php73",
             "version": "v1.22.1",
@@ -3546,5 +4012,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.0.0"
 }
diff --git a/app/config/invoice-template.html b/app/config/invoice-template.html
index 64f98c0..085a757 100644
--- a/app/config/invoice-template.html
+++ b/app/config/invoice-template.html
@@ -3,32 +3,50 @@
         <style>
          body {
              font-family: sans-serif;
-	           font-size: 10pt;
+	           font-size: 12pt;
+         }
+         .table {
+             width: 100%;
+             display: flex;
+             justify-content: space-between;
+         }
+         .table table {
+             border: 1px solid;
+             border-radius: 5px;
+             width: 100%;
+             margin: 0px auto;
+             float: none;
          }
          p {	margin: 0pt; }
          td { vertical-align: top; }
-         .items td {
+         table td {
 	           border-left: 0.1mm solid #000000;
 	           border-right: 0.1mm solid #000000;
          }
-         table thead td { background-color: #EEEEEE;
+         table thead th {
+             background-color: #EEEEEE;
 	           text-align: center;
 	           border: 0.1mm solid #000000;
-	           font-variant: small-caps;
          }
-         .items td.blanktotal {
-	           background-color: #EEEEEE;
+         table tbody td {
+	           background-color: #FFF;
 	           border: 0.1mm solid #000000;
-	           background-color: #FFFFFF;
-	           border: 0mm none #000000;
-	           border-top: 0.1mm solid #000000;
-	           border-right: 0.1mm solid #000000;
+             padding-right: 2mm;
+             padding-left: 2mm;
          }
-         .items td.totals {
+         tbody td.td-3,
+         tbody td.td-1 {
 	           text-align: right;
-	           border: 0.1mm solid #000000;
          }
-         .items td.cost,
+         tbody tr.tr-2 td,
+         tbody tr.tr-3 td {
+             background-color: #EEE;
+             border-top: 0.4mm solid #000;
+         }
+         tbody tr.tr-3 td {
+             font-weight: bold;
+         }
+         tbody td.td-2,
          .center {
 	           text-align: center;
          }
@@ -44,7 +62,7 @@
         <p></p>
         <p></p>
         <p></p>
-        <p class="right">City, on 20. 9. 2021</p>
+        <p class="right">City, on [[today]]</p>
         <p><strong>Honorarnote</br>Nummer [[number]]</strong></p>
         <p></p>
         <p>Für meine Tätigkeit Programmieren von [[date_start]] bis [[date_end]] erlaube ich mir, folgenden Betrag in Rechnung zu stellen:</p>
diff --git a/app/config/packages/translation.yml b/app/config/packages/translation.yml
new file mode 100644
index 0000000..7a70d56
--- /dev/null
+++ b/app/config/packages/translation.yml
@@ -0,0 +1,6 @@
+# config/packages/translation.yaml
+framework:
+    translator:
+        paths:
+            - '%kernel.project_dir%/translations'
+
diff --git a/app/config/rprt.example.config.yaml b/app/config/rprt.example.config.yaml
index b1783c4..34d8d46 100644
--- a/app/config/rprt.example.config.yaml
+++ b/app/config/rprt.example.config.yaml
@@ -8,7 +8,7 @@ tracking_service:
     report_id: '<89-123>'
 export:
   template_path: '~/.config/rprt-cli/invoice-template.html'
-  output: '/tmp/YYYY-mm-invoice.pdf'
+  output: '/tmp/[[YEAR]]-[[month]]-invoice.pdf'
   tokens:
     key: 'value to replace key'
     another_key: 'value to replace another key'
@@ -17,13 +17,6 @@ export:
     - 'Hours'
     - 'Rate'
     - 'Price'
-# reports:
-#   report short name:
-#     table:
-#       header:
-#         # overrides for table header
-#         hours: Quantity
-#    source: <youtrack-url>
 projects:
   '<short name of first project>':
     name: '<Project long name>'
@@ -32,7 +25,6 @@ projects:
     currency: 'EUR'
     project column: 1
     time column: 4
-    # time format m - minutes, h - hours
     time format: 'm'
 
 locale: 'en_GB'
diff --git a/app/src/Commands/RprtCommand.php b/app/src/Commands/RprtCommand.php
index 136e5ac..0846d26 100644
--- a/app/src/Commands/RprtCommand.php
+++ b/app/src/Commands/RprtCommand.php
@@ -55,6 +55,7 @@ class RprtCommand extends Command
         $this->setName('rprt');
         $this->setDescription('Generate monthly report');
         // @TODO $this->addUsage('');
+        // @TODO add sub options (config overrides)
         $this->addOption(
             'file',
             'f',
@@ -79,6 +80,18 @@ class RprtCommand extends Command
             InputOption::VALUE_NONE,
             'Test login into youtrack service.'
         );
+        $this->addOption(
+            'output',
+            'o',
+            InputOption::VALUE_REQUIRED,
+            'Provide output file path. This option overrides configuration.'
+        );
+        $this->addOption(
+            'send',
+            's',
+            InputOption::VALUE_NONE,
+            'Send pdf export via email to recipient.'
+        );
     }
 
     protected function execute(InputInterface $input, OutputInterface $output) : int
@@ -101,13 +114,19 @@ class RprtCommand extends Command
             if ($pdf = $input->getOption('pdf')) {
                 $nice_data = $this->csv->arangeDataForPdfExport($data);
                 // @TODO method gatherTokens();
-                $this->pdfExport->fromDataToPdf($nice_data);
+                if ($output = $input->getOption('output')) {
+                    $this->pdfExport->setOutput($output);
+                }
+                $output_path = $this->pdfExport->fromDataToPdf($nice_data);
             }
 
-            return Command::SUCCESS;
+            // return Command::SUCCESS;
+        }
+        if ($send = $input->getOption('send') && $output_path) {
+            // Send email to configured address.
         }
 
-        $this->dummyOutput($input, $output);
+        // $this->dummyOutput($input, $output);
         return Command::SUCCESS;
     }
 
diff --git a/app/src/Utils/CsvReport/CsvReport.php b/app/src/Utils/CsvReport/CsvReport.php
index 4c2b3a4..88bba6b 100644
--- a/app/src/Utils/CsvReport/CsvReport.php
+++ b/app/src/Utils/CsvReport/CsvReport.php
@@ -95,9 +95,9 @@ class CsvReport implements CsvReportInterface
             $price       = $hours * (int) $config['price'];
             $row         = [
                 $config['name'],
-                $hours,
-                $config['price'],
-                $hours * $config['price'],
+                number_format($hours, 2, ',', '.'),
+                number_format($config['price'], 2, ',', '.'),
+                number_format($price, 2, ',', '.'),
             ];
             $rows[]      = $row;
             $totalHours += $hours;
@@ -105,7 +105,8 @@ class CsvReport implements CsvReportInterface
         }
         // @TODO Check rate in final result.
         // $rows[] = [$this->translator->trans('Sum'), $totalHours, $config['price'], $totalPrice];
-        $rows[] = ['Sum', $totalHours, $config['price'], $totalPrice];
+        $rows[] = ['Gesamt netto', number_format($totalHours, 2, ',', '.'), number_format($config['price'], 2, ',', '.'), number_format($totalPrice, 2, ',', '.')];
+        $rows[] = [null, null, 'Gessamt brutto', number_format($totalPrice, 2, ',', '.')];
 
         return $rows;
     }
diff --git a/app/src/Utils/PdfExport/PdfExportService.php b/app/src/Utils/PdfExport/PdfExportService.php
index 4c0e3d6..1f0256c 100644
--- a/app/src/Utils/PdfExport/PdfExportService.php
+++ b/app/src/Utils/PdfExport/PdfExportService.php
@@ -25,7 +25,7 @@ class PdfExportService implements PdfExportInterface {
     public function getTemplatePath(): ?string
     {
         if (!isset($this->templatePath)) {
-            $template_path = $this->config->get('report.template_path', FALSE);
+            $template_path = $this->config->get('export.template_path', FALSE);
             if (!$template_path) {
                 $template_path = readline('Enter template file path: ');
             }
@@ -45,19 +45,33 @@ class PdfExportService implements PdfExportInterface {
         throw new Exception('Template file not found!');
     }
 
+    // @TODO move this method to CsvReport.
+    // Add classes to table elements.
+    // @TODO would it make sense to allow more per user extending?
     public function parsedDataToHtmlTable(array $data): ?string {
-        $table = '<table><thead><tr>';
+        $table = '<table><thead><tr class="tr-header">';
         $header = array_shift($data);
-        foreach ($header as $cell) {
-            $table .= "<th>{$cell}</th>";
+        foreach ($header as $index => $cell) {
+            $table .= "<th class=\"th-{$index}\">{$cell}</th>";
         }
         $table .= '</tr></thead><tbody>';
-        foreach ($data as $row) {
-            $cells = [];
-            foreach ($row as $cell) {
-                $cells[] = "<td>{$cell}</td>";
+        foreach ($data as $row_index => $row) {
+            list($cells, $colspan) = [[], 0];
+            foreach ($row as $index => $cell) {
+                if (!$cell) {
+                    $colspan += 1;
+                    continue;
+                }
+                if ($colspan) {
+                    $colspan += 1;
+                    $cells[] = "<td class=\"td-{$index}\" colspan=\"{$colspan}\">{$cell}</td>";
+                    $colspan = 0;
+                }
+                else {
+                    $cells[] = "<td class=\"td-{$index}\">{$cell}</td>";
+                }
             }
-            $rows[] = '<tr>' . implode($cells) . '</tr>';
+            $rows[] = "<tr class=\"tr-{$row_index}\">" . implode($cells) . '</tr>';
         }
         $table .= implode('', $rows);
         $table .= '</tbody></table>';
@@ -73,31 +87,95 @@ class PdfExportService implements PdfExportInterface {
         return $template;
     }
 
+    // @TODO write a method to gather tokens.
+    public function getTokensInTemplate(string $template): array {
+        // @TODO find substrings of type [[key]]
+        preg_match_all('/\[\[([a-z0-9-_]+)\]\]/', $template, $match);
+        return $match[1];
+    }
+
+    // @TODO support multiple templates by adding template id in config.
+    /**
+     * Get tokens to replace in the template.
+     *
+     * @param string $template_path
+     *   Path to the template file (long term plan is to support multiple templates).
+     * @param bool $skip_missing
+     *   Just skip missing tokens.
+     * @param array $runtime_tokens
+     *   Provide tokens at runtime of the application (not supported yet). @TODO
+     *
+     * @return array
+     *   Token keys and values array.
+     */
+    public function gatherTokensForTemplate(string $template_path, bool $skip_missing = FALSE, array $runtime_tokens = []): array {
+        list($tokens, $missing) = [[], []];
+        $token_keys = $this->getTokensInTemplate(file_get_contents($template_path));
+        $config_tokens = $this->config->get('export.tokens');
+        foreach ($token_keys as $token_key) {
+            if (isset($runtime_tokens[$token_key])) {
+                $tokens[$token_key] = $runtime_tokens[$token_key];
+            }
+            elseif (!isset($config_tokens[$token_key]) && !$skip_missing) {
+                $tokens[$token_key] = readline("Enter value to replace [[{$token_key}]] in template: ");
+            }
+            elseif (isset($config_tokens[$token_key])) {
+                $tokens[$token_key] = $config_tokens[$token_key];
+            }
+            else {
+                $missing[] = $token_key;
+            }
+        }
+        return $tokens;
+    }
+
     public function pdfExport(string $html, $output = null): bool {
         $this->mpdf->SetProtection(array('print'));
-        $this->mpdf->SetTitle("Acme Trading Co. - Invoice");
-        $this->mpdf->SetAuthor("Acme Trading Co.");
+        // @TODO make configurable.
+        $this->mpdf->SetTitle("Invoice");
+        $this->mpdf->SetAuthor("rprt-cli");
         $this->mpdf->SetDisplayMode('fullpage');
-
         $this->mpdf->WriteHTML($html);
-
-        if (!$this->output) {
-            $this->output = $this->config->get('report.output', NULL) ?? readline('Enter output file path: ');
-        }
-        $this->mpdf->Output($this->output, Destination::FILE);
+        $this->mpdf->Output($this->getOutput(), Destination::FILE);
         return file_exists($this->output);
     }
 
+    protected function getOutput() {
+        if (isset($this->output)) {
+            return $this->output;
+        }
+        $output = $this->config->get('export.output', NULL) ?? readline('Enter output file path: ');
+        $output = str_replace('[[month]]', date('F'), $output);
+        $output = str_replace('[[year]]', date('Y'), $output);
+        $this->output = $output;
+        return $output;
+    }
+
     public function setOutput(string $path) {
         $this->output = $path;
     }
 
     public function fromDataToPdf(array $data, array $tokens = []): bool {
         $template_path = $this->getTemplatePath();
+        $tokens = $this->defaultTokens();
         $tokens['table'] = $this->parsedDataToHtmlTable($data);
+        $tokens = $this->gatherTokensForTemplate($template_path, FALSE, $tokens);
         $html = $this->replaceTokensInTemplate($template_path, $tokens);
         $success = $this->pdfExport($html);
         return $success;
     }
 
+    /**
+     * Get default tokens.
+     */
+    protected function defaultTokens(): array {
+        $tokens = [];
+        $tokens['today'] = date('j. m. y');
+        $month_ago = strtotime('1 month ago');
+        $tokens['number'] = date('m/y', $month_ago);
+        $tokens['date_start'] = date('1. m. y', $month_ago);
+        $tokens['date_end'] = date("Y-m-d", mktime(0, 0, 0, (int) date("m"), 0));
+        return $tokens;
+    }
+
 }