From 2be15b6c017f50097d32c3cb9f575a0501f50843 Mon Sep 17 00:00:00 2001
From: Josh Hawkins <32435876+hawkeye217@users.noreply.github.com>
Date: Wed, 8 May 2024 09:46:31 -0500
Subject: [PATCH] Improve config validation error messages (#11292)

---
 frigate/app.py    | 10 ++++++--
 frigate/config.py | 62 +++++++++++++++++++++++++++--------------------
 2 files changed, 44 insertions(+), 28 deletions(-)

diff --git a/frigate/app.py b/frigate/app.py
index 1306ee97d1..c2a489b75d 100644
--- a/frigate/app.py
+++ b/frigate/app.py
@@ -16,6 +16,7 @@
 from peewee_migrate import Router
 from playhouse.sqlite_ext import SqliteExtDatabase
 from playhouse.sqliteq import SqliteQueueDatabase
+from pydantic import ValidationError
 
 from frigate.api.app import create_app
 from frigate.comms.config_updater import ConfigPublisher
@@ -611,8 +612,13 @@ def start(self) -> None:
                 print("*************************************************************")
                 print("***    Config Validation Errors                           ***")
                 print("*************************************************************")
-                print(e)
-                print(traceback.format_exc())
+                if isinstance(e, ValidationError):
+                    for error in e.errors():
+                        location = ".".join(str(item) for item in error["loc"])
+                        print(f"{location}: {error['msg']}")
+                else:
+                    print(e)
+                    print(traceback.format_exc())
                 print("*************************************************************")
                 print("***    End Config Validation Errors                       ***")
                 print("*************************************************************")
diff --git a/frigate/config.py b/frigate/config.py
index 602f03f1f3..0081769560 100644
--- a/frigate/config.py
+++ b/frigate/config.py
@@ -555,19 +555,24 @@ def generate_contour(self, frame_shape: tuple[int, int]):
         # old native resolution coordinates
         if isinstance(coordinates, list):
             explicit = any(p.split(",")[0] > "1.0" for p in coordinates)
-            self._contour = np.array(
-                [
-                    (
-                        [int(p.split(",")[0]), int(p.split(",")[1])]
-                        if explicit
-                        else [
-                            int(float(p.split(",")[0]) * frame_shape[1]),
-                            int(float(p.split(",")[1]) * frame_shape[0]),
-                        ]
-                    )
-                    for p in coordinates
-                ]
-            )
+            try:
+                self._contour = np.array(
+                    [
+                        (
+                            [int(p.split(",")[0]), int(p.split(",")[1])]
+                            if explicit
+                            else [
+                                int(float(p.split(",")[0]) * frame_shape[1]),
+                                int(float(p.split(",")[1]) * frame_shape[0]),
+                            ]
+                        )
+                        for p in coordinates
+                    ]
+                )
+            except ValueError:
+                raise ValueError(
+                    f"Invalid coordinates found in configuration file. Coordinates must be relative (between 0-1): {coordinates}"
+                )
 
             if explicit:
                 self.coordinates = ",".join(
@@ -579,19 +584,24 @@ def generate_contour(self, frame_shape: tuple[int, int]):
         elif isinstance(coordinates, str):
             points = coordinates.split(",")
             explicit = any(p > "1.0" for p in points)
-            self._contour = np.array(
-                [
-                    (
-                        [int(points[i]), int(points[i + 1])]
-                        if explicit
-                        else [
-                            int(float(points[i]) * frame_shape[1]),
-                            int(float(points[i + 1]) * frame_shape[0]),
-                        ]
-                    )
-                    for i in range(0, len(points), 2)
-                ]
-            )
+            try:
+                self._contour = np.array(
+                    [
+                        (
+                            [int(points[i]), int(points[i + 1])]
+                            if explicit
+                            else [
+                                int(float(points[i]) * frame_shape[1]),
+                                int(float(points[i + 1]) * frame_shape[0]),
+                            ]
+                        )
+                        for i in range(0, len(points), 2)
+                    ]
+                )
+            except ValueError:
+                raise ValueError(
+                    f"Invalid coordinates found in configuration file. Coordinates must be relative (between 0-1): {coordinates}"
+                )
 
             if explicit:
                 self.coordinates = ",".join(