From 23f844d8715884730179968ea79be5cb4f7b8522 Mon Sep 17 00:00:00 2001
From: Matt Visnovsky <matt@visnovsky.us>
Date: Fri, 7 Jun 2024 16:35:06 -0600
Subject: [PATCH] Error handling robustness

Cleanup of some things I missed yesterday...
---
 src/pages/EditMonitor.vue |  2 +-
 src/util.js               | 68 +++++++++++++++----------------
 src/util.ts               | 85 +++++++++++++++++++--------------------
 3 files changed, 77 insertions(+), 78 deletions(-)

diff --git a/src/pages/EditMonitor.vue b/src/pages/EditMonitor.vue
index 5f64c4c9..ce4b2300 100644
--- a/src/pages/EditMonitor.vue
+++ b/src/pages/EditMonitor.vue
@@ -301,7 +301,7 @@
                                     </div>
                                     <div class="flex-grow-1">
                                         <label for="expectedValue" class="form-label">{{ $t("Expected Value") }}</label>
-                                        <input v-if="monitor.jsonPathOperator !== 'contains' && monitor.jsonPathOperator !== '=='" id="expectedValue" v-model="monitor.expectedValue" type="number" class="form-control" required step=".01">
+                                        <input v-if="monitor.jsonPathOperator !== 'contains' && monitor.jsonPathOperator !== '==' && monitor.jsonPathOperator !== '!='" id="expectedValue" v-model="monitor.expectedValue" type="number" class="form-control" required step=".01">
                                         <input v-else id="expectedValue" v-model="monitor.expectedValue" type="text" class="form-control" required>
                                     </div>
                                 </div>
diff --git a/src/util.js b/src/util.js
index 0a576a9a..ca09bdbc 100644
--- a/src/util.js
+++ b/src/util.js
@@ -405,43 +405,43 @@ async function evaluateJsonQuery(data, jsonPath, jsonPathOperator, expectedValue
     catch (_a) {
         response = typeof data === "number" || typeof data === "object" ? data : data.toString();
     }
-    if (jsonPath && typeof data === "object") {
-        try {
-            response = await jsonata(jsonPath).evaluate(response);
+    try {
+        response = (jsonPath) ? await jsonata(jsonPath).evaluate(response) : response;
+        let jsonQueryExpression;
+        switch (jsonPathOperator) {
+            case ">":
+            case ">=":
+            case "<":
+            case "<=":
+                jsonQueryExpression = `$.value ${jsonPathOperator} $.expected`;
+                break;
+            case "!=":
+                jsonQueryExpression = "$string($.value) != $string($.expected)";
+                break;
+            case "==":
+                jsonQueryExpression = "$string($.value) = $string($.expected)";
+                break;
+            case "contains":
+                jsonQueryExpression = "$contains($string($.value), $string($.expected))";
+                break;
+            default:
+                throw new Error(`Invalid condition ${jsonPathOperator}`);
         }
-        catch (err) {
-            throw new Error(`Error evaluating JSON query: ${err.message}`);
+        const expression = jsonata(jsonQueryExpression);
+        const status = await expression.evaluate({
+            value: response,
+            expected: expectedValue
+        });
+        if (response === undefined || status === undefined) {
+            throw new Error("Query evaluation returned undefined. Check query syntax and the structure of the response data");
         }
+        return {
+            status,
+            response
+        };
     }
-    let jsonQueryExpression;
-    switch (jsonPathOperator) {
-        case ">":
-        case ">=":
-        case "<":
-        case "<=":
-        case "!=":
-            jsonQueryExpression = `$.value ${jsonPathOperator} $.expected`;
-            break;
-        case "==":
-            jsonQueryExpression = "$string($.value) = $string($.expected)";
-            break;
-        case "contains":
-            jsonQueryExpression = "$contains($string($.value), $string($.expected))";
-            break;
-        default:
-            throw new Error(`Invalid condition ${jsonPathOperator}`);
+    catch (err) {
+        throw new Error(`Error evaluating JSON query: ${err.message}. Response from server was: ${response}`);
     }
-    const expression = jsonata(jsonQueryExpression);
-    const status = await expression.evaluate({
-        value: response.toString(),
-        expected: expectedValue.toString()
-    });
-    if (response === undefined || status === undefined) {
-        throw new Error("Query evaluation returned undefined. Check your query syntax and the structure of the response data.");
-    }
-    return {
-        status,
-        response
-    };
 }
 exports.evaluateJsonQuery = evaluateJsonQuery;
diff --git a/src/util.ts b/src/util.ts
index 94765f18..751424db 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -663,49 +663,48 @@ export async function evaluateJsonQuery(data: any, jsonPath: string, jsonPathOpe
         response = typeof data === "number" || typeof data === "object" ? data : data.toString();
     }
 
-    // If a JSON path is provided, pre-evaluate the data using it.
-    if (jsonPath && typeof data === "object") {
-        try {
-            response = await jsonata(jsonPath).evaluate(response);
-        } catch (err: any) {
-            throw new Error(`Error evaluating JSON query: ${err.message}`);
+    try {
+        // If a JSON path is provided, pre-evaluate the data using it.
+        response = (jsonPath) ? await jsonata(jsonPath).evaluate(response) : response;
+
+        // Perform the comparison logic using the chosen operator
+        let jsonQueryExpression;
+        switch (jsonPathOperator) {
+            case ">":
+            case ">=":
+            case "<":
+            case "<=":
+                jsonQueryExpression = `$.value ${jsonPathOperator} $.expected`;
+                break;
+            case "!=":
+                jsonQueryExpression = "$string($.value) != $string($.expected)";
+                break;
+            case "==":
+                jsonQueryExpression = "$string($.value) = $string($.expected)";
+                break;
+            case "contains":
+                jsonQueryExpression = "$contains($string($.value), $string($.expected))";
+                break;
+            default:
+                throw new Error(`Invalid condition ${jsonPathOperator}`);
         }
+
+        // Evaluate the JSON Query Expression
+        const expression = jsonata(jsonQueryExpression);
+        const status = await expression.evaluate({
+            value: response,
+            expected: expectedValue
+        });
+
+        if (response === undefined || status === undefined) {
+            throw new Error("Query evaluation returned undefined. Check query syntax and the structure of the response data");
+        }
+
+        return {
+            status,  // The evaluation of the json query
+            response // The response from the server or result from initial json-query evaluation
+        };
+    } catch (err: any) {
+        throw new Error(`Error evaluating JSON query: ${err.message}. Response from server was: ${response}`);
     }
-
-    // Perform the comparison logic using the chosen operator
-    // Perform the comparison logic using the chosen operator
-    let jsonQueryExpression;
-    switch (jsonPathOperator) {
-        case ">":
-        case ">=":
-        case "<":
-        case "<=":
-        case "!=":
-            jsonQueryExpression = `$.value ${jsonPathOperator} $.expected`;
-            break;
-        case "==":
-            jsonQueryExpression = "$string($.value) = $string($.expected)";
-            break;
-        case "contains":
-            jsonQueryExpression = "$contains($string($.value), $string($.expected))";
-            break;
-        default:
-            throw new Error(`Invalid condition ${jsonPathOperator}`);
-    }
-
-    // Evaluate the JSON Query Expression
-    const expression = jsonata(jsonQueryExpression);
-    const status = await expression.evaluate({
-        value: response.toString(),
-        expected: expectedValue.toString()
-    });
-
-    if (response === undefined || status === undefined) {
-        throw new Error("Query evaluation returned undefined. Check your query syntax and the structure of the response data.");
-    }
-
-    return {
-        status,  // The evaluation of the json query
-        response // The response from the server or result from initial json-query evaluation
-    };
 }