ISSUE #18 - [fix]: Improved logical flow of docker environment searching for laddr

lib/laddr/src/laddr/cli/utils/docker.py

@@ -9,35 +9,96 @@
 from pathlib import Path
 import subprocess
 import time
+import platform
+import os
 
 import yaml
 
 from .errors import DockerComposeError, DockerNotFoundError
 from .logger import print_info, print_success
 
 
-def check_docker() -> bool:
-    """Check if Docker is installed and running.
+def is_wsl():
+    """Check if the environment is WSL."""
+    return "microsoft" in platform.uname().release.lower()
 
-    Returns:
-        True if Docker is available
 
-    Raises:
-        DockerNotFoundError: If Docker is not found or not running
-    """
+def _check_docker_daemon():
+    """Check if the Docker daemon is running."""
     try:
         result = subprocess.run(
             ["docker", "version"],
             capture_output=True,
             text=True,
             check=False,
             timeout=5,
+            env={"DOCKER_HOST": "unix:///var/run/docker.sock"},
         )
-        if result.returncode != 0:
-            raise DockerNotFoundError()
-        return True
+        return result.returncode == 0
     except (FileNotFoundError, subprocess.TimeoutExpired):
-        raise DockerNotFoundError()
+        return False
+
+
+def _check_docker_desktop():
+    """Check if Docker Desktop is running."""
+    try:
+        result = subprocess.run(
+            ["docker", "version"],
+            capture_output=True,
+            text=True,
+            check=False,
+            timeout=5,
+        )
+        return result.returncode == 0
+    except (FileNotFoundError, subprocess.TimeoutExpired):
+        return False
+
+
+def check_docker() -> bool:
+    """Check if Docker is installed and running.
+
+    Returns:
+        True if Docker is available
+
+    Raises:
+        DockerNotFoundError: If Docker is not found or not running
+    """
+    system = platform.system()
+
+    if system == "Linux":
+        if is_wsl():
+            # Windows + WSL
+            if _check_docker_daemon():
+                return True
+            print_info("Docker daemon not found in WSL. Trying Docker Desktop...")
+            if _check_docker_desktop():
+                return True
+            raise DockerNotFoundError(
+                "Docker not found in WSL. Laddr could not connect to the Docker daemon within WSL or to Docker Desktop. Please ensure one of them is installed, running, and configured for WSL."
+            )
+        else:
+            # Linux
+            if _check_docker_daemon():
+                return True
+            print_info("Docker daemon not found. Trying Docker Desktop...")
+            if _check_docker_desktop():
+                return True
+            raise DockerNotFoundError(
+                "Docker not found. Laddr could not connect to the Docker daemon or Docker Desktop. Please ensure one of them is installed and running."
+            )
+    elif system == "Windows":
+        if _check_docker_desktop():
+            return True
+        raise DockerNotFoundError(
+            "Docker Desktop not found. Please ensure that Docker Desktop is installed and running."
+        )
+    else:
+        # Other systems
+        if _check_docker_desktop():
+            return True
+        raise DockerNotFoundError(
+            "Docker not found. Please ensure that Docker is installed and running."
+        )
 
 
 def check_docker_compose() -> bool:

lib/laddr/src/laddr/cli/utils/errors.py

@@ -59,10 +59,10 @@ def __init__(self, filename: str, details: str):
 class DockerNotFoundError(LaddrError):
     """Raised when Docker is not installed or not running."""
 
-    def __init__(self):
+    def __init__(self, message: str = "Docker not found or not running"):
         super().__init__(
-            "Docker not found or not running",
-            hint="Install Docker (https://docs.docker.com/get-docker/) and ensure it's running",
+            message,
+            hint="Please ensure that Docker is installed and running.",
         )