Add validation messages for final P1/11 lineNameInfo

lib/www/client/source/src/components/project-settings/input-final-p111.vue

@@ -7,8 +7,32 @@
     :is-valid="isValid"
     :save="save"
   >
-  </dougal-project-settings-file-matching-parameters>
+    <template v-slot:paths v-if="validationErrors.includes('ERR_PATHS')">
+      <v-alert type="warning">
+        At least one path entry is required.<br/>
+        <ul>
+          <li>If you have final P1/11 files in multiple paths (e.g., each file in its own sequence directory), enter here the parent directory.</li>
+          <li>If files are across multiple paths without a common ancestor, you must add multiple entries here.</li>
+        </ul>
+      </v-alert>
+    </template>
 
+    <template v-slot:globs v-if="validationErrors.includes('ERR_GLOBS')">
+      <v-alert type="warning">
+        At least one glob expression is required.
+      </v-alert>
+    </template>
+
+    <template v-slot:line-info v-if="validationErrors.includes('ERR_LINEINFO')">
+      <v-alert type="warning">
+        At least the following fields are required:
+        <ul>
+          <li><code>line</code> (integer, the preplot line number)</li>
+          <li><code>sequence</code> (integer, the acquisition sequence number)</li>
+        </ul>
+      </v-alert>
+    </template>
+  </dougal-project-settings-file-matching-parameters>
 </template>
 
 <style scoped>
@@ -117,18 +141,38 @@ export default {
         globs: this.cwo?.globs,
         paths: this.cwo?.paths,
         pattern: this.cwo?.pattern,
-        lineNameInfo: this.cwo?.lineNameInfo
+        lineNameInfo: this.cwo?.lineNameInfo ?? {}
       };
     },
 
+    validationErrors () {
+      const errors = [];
+
+      if (!this.cwo?.paths.length || !this.cwo?.paths[0].length) {
+        // "Missing path: we need at least one directory where to search for matching files"
+        errors.push("ERR_PATHS");
+      }
+
+      if (!this.cwo?.globs.length) {
+        // "Missing globs: we need at least one glob to search for matching files"
+        errors.push("ERR_GLOBS");
+      }
+
+      if (this.cwo?.lineNameInfo) {
+        const pass = !this.cwo?.lineNameInfo?.fields || [ "line", "sequence" ].every( i =>
+          ["offset", "length"].every( j => j in (this.cwo?.lineNameInfo?.fields?.[i] ?? {}) ));
+
+        if (!pass) {
+          // "Missing field info: We need at least 'line' and 'sequence' fields"
+          errors.push("ERR_LINEINFO")
+        }
+      }
+
+      return errors;
+    },
+
     isValid () {
-      return !!(this.cwo?.paths.length && this.cwo?.globs.length && (
+      return this.validationErrors.length == 0;
-        this.cwo?.pattern?.regex &&
-          ["direction", "line", "sequence"].every( i => this.cwo?.pattern?.captures?.includes(i) )) || (
-        this.cwo?.lineNameInfo &&
-          this.cwo?.lineNameInfo?.fields &&
-            [ "line", "sequence", "incr" ].every( i =>
-              ["offset", "length"].every( j => j in this.cwo?.lineNameInfo.fields[i] ))));
     }
 
   },