redone shift coloring and shift signup state

1 files changed, 98 insertions, 0 deletions

diff --git a/includes/model/ShiftSignupState.php b/includes/model/ShiftSignupState.php
new file mode 100644
index 00000000..f9226375
--- /dev/null
+++ b/includes/model/ShiftSignupState.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Engelsystem;
+
+/**
+ * BO to represent if there are free slots on a shift for a given angeltype
+ * and if signup for a given user is possible (or not, because of collisions, etc.)
+ */
+class ShiftSignupState {
+
+  /**
+   * Shift has free places
+   */
+  const FREE = 'FREE';
+
+  /**
+   * Shift collides with users shifts
+   */
+  const COLLIDES = 'COLLIDES';
+
+  /**
+   * User cannot join because of a restricted angeltype or user is not in the angeltype
+   */
+  const ANGELTYPE = 'ANGELTYPE';
+
+  /**
+   * Shift is full
+   */
+  const OCCUPIED = 'OCCUPIED';
+
+  /**
+   * User is admin and can do what he wants.
+   */
+  const ADMIN = 'ADMIN';
+
+  /**
+   * Shift has already ended, no signup
+   */
+  const SHIFT_ENDED = 'SHIFT_ENDED';
+
+  /**
+   * User is already signed up
+   */
+  const SIGNED_UP = 'SIGNED_UP';
+
+  private $state;
+
+  private $freeEntries;
+
+  public function __construct($state, $free_entries) {
+    $this->state = $state;
+    $this->freeEntries = $free_entries;
+  }
+
+  /**
+   * Combine this state with another state from the same shift.
+   *
+   * @param ShiftSignupState $shiftSignupState
+   *          The other state to combine
+   */
+  public function combineWith(ShiftSignupState $shiftSignupState) {
+    $this->freeEntries += $shiftSignupState->getFreeEntries();
+    
+    switch ($this->state) {
+      case ShiftSignupState::ANGELTYPE:
+      case ShiftSignupState::OCCUPIED:
+        $this->state = $shiftSignupState->getState();
+    }
+  }
+
+  /**
+   * Returns true, if signup is allowed
+   */
+  public function isSignupAllowed() {
+    switch ($this->state) {
+      case ShiftSignupState::FREE:
+      case ShiftSignupState::ADMIN:
+        return true;
+    }
+    return false;
+  }
+
+  /**
+   * Return the shift signup state
+   */
+  public function getState() {
+    return $this->state;
+  }
+
+  /**
+   * How many places are free in this shift for the angeltype?
+   */
+  public function getFreeEntries() {
+    return $this->freeEntries;
+  }
+}
+
+?>
\ No newline at end of file