1 files changed, 80 insertions, 0 deletions
diff --git a/src/Builder.php b/src/Builder.php
new file mode 100644
index 0000000..308fa82
--- /dev/null
+++ b/src/Builder.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace FlatFileForms;
+
+use Yosymfony\Toml\Toml;
+
+class Builder
+{
+  public function __construct(
+    private string $formPath
+  )
+  {}
+
+  public function buildFields(mixed $page = null)
+  {
+    $parsed = Toml::parseFile($this->formPath . '/fields/_fields.toml');
+    $fields = [];
+
+    // if a page is requested
+    if ($page) {
+      if (! isset($parsed['page'])) {
+        throw new \Exception('Form has no pages');
+      }
+
+      if (! isset($parsed['page'][$page])) {
+        throw new \Exception('Form has no page ' . $page);
+      }
+
+      $fields = $this->buildSinglePageFields($parsed['page'][$page]);
+    }
+
+    // else get all fields
+    else {
+      // if form is paged
+      if (isset($parsed['page'])) {
+        $pages = $parsed['page'];
+        foreach ($pages as $pageKey => $pageFields) {
+          $fields[$pageKey] = $this->buildSinglePageFields($pageFields);
+        }
+      }
+
+      // if form is not paged
+      else {
+        foreach ($parsed['field'] as $key => $field) {
+          $fields[$key] = $this->buildSingleField($key, $field);
+        }
+      }
+    }
+
+    return $fields;
+  }
+
+  public function buildSinglePageFields(array $pageFields): array
+  {
+    $fields = [];
+
+    if (! empty($pageFields['file'])) {
+      $pageFields = array_replace_recursive($pageFields, Toml::parseFile($this->formPath . '/fields/' . $pageFields['file']));
+    }
+
+    foreach ($pageFields['field'] as $key => $field) {
+      $fields[$key] = $this->buildSingleField($key, $field);
+    }
+
+    return $fields;
+  }
+
+  public function buildSingleField(string $key, array $field): array
+  {
+    if (! empty($field['file'])) {
+      $field = array_replace_recursive($field, Toml::parseFile($this->formPath . '/fields/' . $field['file']));
+    }
+
+    if (empty($field['name'])) {
+      $field['name'] = $key;
+    }
+
+    return $field;
+  }
+}