feat: Implement poster rendering options with ASCII, Viu, and RichPixels support

renamer/views/posters/base.py

@@ -0,0 +1,43 @@
+"""Base class for poster renderers."""
+
+from abc import ABC, abstractmethod
+import os
+
+
+class PosterRenderer(ABC):
+    """Abstract base class for poster rendering implementations."""
+
+    @abstractmethod
+    def render(self, image_path: str, width: int = 40) -> str:
+        """Render a poster image to a string.
+
+        Args:
+            image_path: Path to the poster image file
+            width: Desired width in characters
+
+        Returns:
+            Rendered poster as a string
+        """
+        pass
+
+    def validate_image(self, image_path: str) -> tuple[bool, str]:
+        """Validate that image file exists.
+
+        Args:
+            image_path: Path to validate
+
+        Returns:
+            Tuple of (is_valid, error_message)
+        """
+        if not os.path.exists(image_path):
+            return False, f"Image file not found: {image_path}"
+        return True, ""
+
+    @abstractmethod
+    def is_available(self) -> tuple[bool, str]:
+        """Check if this renderer is available on the system.
+
+        Returns:
+            Tuple of (is_available, message)
+        """
+        pass