Analyze a file format of a song.

## Spec

File: ./Test.pro (file ext are always .pro)

- every song contains parts (name group here) (here: Verse 1, Verse 2, Chorus, ...) but could be any name
- every group contains 1-x slides
- every song contains different arrangements (here normal and test2) that defines the existence and the order of the groups
- every slide CAN have another textbox which contains a translated version of the first textbox

## Status

1. [x] Analyse the file structure and find all of the described specs.
2. [x] Test and verify if the definition is correct - there is a `all-songs` directory with lot of examples.
3. [x] Describe the structure for future AI prompts to use these files in `spec/pp_song_spec.md` and describe the usage in the `AGENTS.md` (replace obsolete commands)
4. [x] Write a PHP module (is later used in laravel) in `./php` which can parse a song and let get/set every aspect of structure. Use Objects here (Song, Group, Slide, Arrangement, etc)
5. [x] Create a simple PHP cli tool, which receive a param with a song file and show the structure of the song.

## PHP Module Usage

The ProPresenter song parser is available as a PHP module in `./php`. Use it to read, parse, and modify .pro song files.

### Reading a Song

```php
use ProPresenter\Parser\ProFileReader;
use ProPresenter\Parser\ProFileWriter;

$song = ProFileReader::read('path/to/song.pro');
```

### Accessing Song Structure

```php
// Basic song info
echo $song->getName();        // Song name
echo $song->getUuid();        // Song UUID

// CCLI metadata
echo $song->getCcliAuthor();          // "Joel Houston, Matt Crocker"
echo $song->getCcliSongTitle();       // "Oceans (Where Feet May Fail)"
echo $song->getCcliPublisher();       // "2012 Hillsong Music Publishing"
echo $song->getCcliCopyrightYear();   // 2012
echo $song->getCcliSongNumber();      // 6428767
echo $song->getCcliDisplay();         // true

// Other metadata
echo $song->getCategory();            // ""
echo $song->getNotes();               // ""
echo $song->getSelectedArrangementUuid(); // "uuid-string"

// Groups (song parts like Verse 1, Chorus, etc.)
foreach ($song->getGroups() as $group) {
    echo $group->getName();   // "Verse 1", "Chorus", etc.
    $slides = $song->getSlidesForGroup($group);
    foreach ($slides as $slide) {
        echo $slide->getPlainText();

        // Optional cue label/title
        echo $slide->getLabel();

        if ($slide->hasTranslation()) {
            echo $slide->getTranslation()->getPlainText();
        }

        // Optional macro action on the cue
        if ($slide->hasMacro()) {
            echo $slide->getMacroName();
            echo $slide->getMacroUuid();
            echo $slide->getMacroCollectionName();
            echo $slide->getMacroCollectionUuid();
        }

        // Optional media action on the cue (image/video)
        if ($slide->hasMedia()) {
            echo $slide->getMediaUrl();
            echo $slide->getMediaUuid();
            echo $slide->getMediaFormat();
        }
    }
}

// Arrangements (different song orderings)
foreach ($song->getArrangements() as $arr) {
    $groups = $song->getGroupsForArrangement($arr);
    // Groups in arrangement order
}

### Modifying and Writing

```php
$song->setName("New Name");
$song->setCcliAuthor("Author Name");
$song->setCcliSongNumber(12345);
$song->setCategory("Worship");
$song->setNotes("Use acoustic intro");
ProFileWriter::write($song, 'output.pro');
```

### Generating a New Song

```php
use ProPresenter\Parser\ProFileGenerator;

$song = ProFileGenerator::generate(
    'Song Name',
    [
        ['name' => 'Verse 1', 'color' => [0.13, 0.59, 0.95, 1.0], 'slides' => [
            ['text' => 'Line 1'],
            ['text' => 'Line 2', 'translation' => 'Zeile 2'],
            ['text' => 'Line 3', 'macro' => ['name' => 'Lied 1.Folie', 'uuid' => '20C1DFDE-0FB6-49E5-B90C-E6608D427212']],
        ]],
        ['name' => 'Media', 'color' => [0.2, 0.2, 0.2, 1.0], 'slides' => [
            ['media' => 'file:///Users/me/Pictures/slide.jpg', 'format' => 'JPG', 'label' => 'slide.jpg'],
            ['media' => 'file:///Users/me/Pictures/slide2.jpg', 'format' => 'JPG', 'label' => 'slide2.jpg', 'macro' => ['name' => '1:1 - Beamer & Stream', 'uuid' => 'A5911D80-622E-4AD6-A242-9278D0640048']],
        ]],
        ['name' => 'Chorus', 'color' => [0.95, 0.27, 0.27, 1.0], 'slides' => [
            ['text' => 'Chorus text'],
        ]],
    ],
    [
        ['name' => 'normal', 'groupNames' => ['Verse 1', 'Chorus', 'Verse 1']],
    ],
    ['author' => 'Author', 'song_title' => 'Title', 'copyright_year' => 2024],
);

// Or generate and write in one call
ProFileGenerator::generateAndWrite('output.pro', 'Song Name', $groups, $arrangements, $ccli);
```

### Edit Label/Macro/Media Data

```php
$slide = $song->getSlides()[0];

// Label (Cue.name)
$slide->setLabel('Seniorennachmittag März.jpg');

// Macro action
$slide->setMacro(
    'Lied 1.Folie',
    '20C1DFDE-0FB6-49E5-B90C-E6608D427212',
    '--MAIN--',
    '8D02FC57-83F8-4042-9B90-81C229728426',
);

// Remove macro action
$slide->removeMacro();

// Read media action
if ($slide->hasMedia()) {
    $url = $slide->getMediaUrl();
    $format = $slide->getMediaFormat();
}
```

## CLI Tool

Parse and display song structure from the command line:

```bash
php php/bin/parse-song.php path/to/song.pro
```

## Format Specification

For detailed information about the .pro file format, see `spec/pp_song_spec.md`.

## Key Files

- `php/src/Song.php` — Top-level song wrapper (metadata, CCLI, groups, slides, arrangements)
- `php/src/Group.php` — Group (song part) wrapper
- `php/src/Slide.php` — Slide wrapper with text access
- `php/src/TextElement.php` — Text element with label + plain text
- `php/src/Arrangement.php` — Arrangement wrapper
- `php/src/RtfExtractor.php` — RTF to plain text converter
- `php/src/ProFileReader.php` — Reads .pro files
- `php/src/ProFileWriter.php` — Writes .pro files
- `php/src/ProFileGenerator.php` — Generates .pro files from scratch
- `php/bin/parse-song.php` — CLI tool (shows metadata, groups, slides, arrangements)
- `spec/pp_song_spec.md` — Format specification
