Handle metadata in translations

Models/ThemeConfig/Conversion/PrepareLayer.ts

@@ -526,7 +526,7 @@ export class RewriteSpecial extends DesugaringStep<TagRenderingConfigJson> {
      * // should warn for unexpected keys
      * const errors = []
      * RewriteSpecial.convertIfNeeded({"special": {type: "image_carousel"}, "en": "xyz"}, errors, "test") // =>  {'*': "{image_carousel()}"}
-     * errors // => ["The only keys allowed next to a 'special'-block are 'before' and 'after'. Perhaps you meant to put 'en' into the special block?"]
+     * errors // => ["At test: The only keys allowed next to a 'special'-block are 'before' and 'after'. Perhaps you meant to put 'en' into the special block?"]
      *
      * // should give an error on unknown visualisations
      * const errors = []
@@ -593,7 +593,7 @@ export class RewriteSpecial extends DesugaringStep<TagRenderingConfigJson> {
             ...Array.from(Object.keys(input))
                 .filter((k) => k !== "special" && k !== "before" && k !== "after")
                 .map((k) => {
-                    return `The only keys allowed next to a 'special'-block are 'before' and 'after'. Perhaps you meant to put '${k}' into the special block?`
+                    return `At ${context}: The only keys allowed next to a 'special'-block are 'before' and 'after'. Perhaps you meant to put '${k}' into the special block?`
                 })
         )
 
@@ -610,7 +610,7 @@ export class RewriteSpecial extends DesugaringStep<TagRenderingConfigJson> {
                         argNamesList,
                         (x) => x
                     )
-                    return `Unexpected argument in special block at ${context} with name '${wrongArg}'. Did you mean ${
+                    return `At ${context}: Unexpected argument in special block at ${context} with name '${wrongArg}'. Did you mean ${
                         byDistance[0]
                     }?\n\tAll known arguments are ${argNamesList.join(", ")}`
                 })
@@ -623,7 +623,7 @@ export class RewriteSpecial extends DesugaringStep<TagRenderingConfigJson> {
             }
             const param = special[arg.name]
             if (param === undefined) {
-                errors.push(`Obligated parameter '${arg.name}' not found`)
+                errors.push(`At ${context}: Obligated parameter '${arg.name}' in special rendering of type ${vis.funcName} not found.\n${arg.doc}`)
             }
         }
 
@@ -735,7 +735,7 @@ export class RewriteSpecial extends DesugaringStep<TagRenderingConfigJson> {
                 continue
             }
             Utils.WalkPath(path.path, json, (leaf, travelled) =>
-                RewriteSpecial.convertIfNeeded(leaf, errors, travelled.join("."))
+                RewriteSpecial.convertIfNeeded(leaf, errors, context + ":" + travelled.join("."))
             )
         }
 

Models/ThemeConfig/Conversion/Validation.ts

@@ -1,19 +1,19 @@
-import { DesugaringStep, Each, Fuse, On } from "./Conversion"
-import { LayerConfigJson } from "../Json/LayerConfigJson"
+import {DesugaringStep, Each, Fuse, On} from "./Conversion"
+import {LayerConfigJson} from "../Json/LayerConfigJson"
 import LayerConfig from "../LayerConfig"
-import { Utils } from "../../../Utils"
+import {Utils} from "../../../Utils"
 import Constants from "../../Constants"
-import { Translation } from "../../../UI/i18n/Translation"
-import { LayoutConfigJson } from "../Json/LayoutConfigJson"
+import {Translation} from "../../../UI/i18n/Translation"
+import {LayoutConfigJson} from "../Json/LayoutConfigJson"
 import LayoutConfig from "../LayoutConfig"
-import { TagRenderingConfigJson } from "../Json/TagRenderingConfigJson"
-import { TagUtils } from "../../../Logic/Tags/TagUtils"
-import { ExtractImages } from "./FixImages"
+import {TagRenderingConfigJson} from "../Json/TagRenderingConfigJson"
+import {TagUtils} from "../../../Logic/Tags/TagUtils"
+import {ExtractImages} from "./FixImages"
 import ScriptUtils from "../../../scripts/ScriptUtils"
-import { And } from "../../../Logic/Tags/And"
+import {And} from "../../../Logic/Tags/And"
 import Translations from "../../../UI/i18n/Translations"
 import Svg from "../../../Svg"
-import { QuestionableTagRenderingConfigJson } from "../Json/QuestionableTagRenderingConfigJson"
+import {QuestionableTagRenderingConfigJson} from "../Json/QuestionableTagRenderingConfigJson"
 import FilterConfigJson from "../Json/FilterConfigJson"
 import DeleteConfig from "../DeleteConfig"
 
@@ -617,6 +617,24 @@ export class DetectMappingsWithImages extends DesugaringStep<TagRenderingConfigJ
     }
 }
 
+class MiscTagRenderingChecks extends DesugaringStep<TagRenderingConfigJson> {
+    constructor() {
+        super("Miscellanious checks on the tagrendering", ["special"], "MiscTagREnderingChecksRew");
+    }
+
+    convert(json: TagRenderingConfigJson, context: string): { result: TagRenderingConfigJson; errors?: string[]; warnings?: string[]; information?: string[] } {
+        const errors =  []
+        if(json["special"] !== undefined){
+            errors.push("At "+context+": detected `special` on the top level. Did you mean `{\"render\":{ \"special\": ... }}`")
+        }
+        return {
+            result: json,
+            errors
+        };
+    }
+
+}
+
 export class ValidateTagRenderings extends Fuse<TagRenderingConfigJson> {
     constructor(layerConfig?: LayerConfigJson, doesImageExist?: DoesImageExist) {
         super(

Models/ThemeConfig/FilterConfig.ts

@@ -66,21 +66,24 @@ export default class FilterConfig {
             })
 
             for (const field of fields) {
-                question.OnEveryLanguage((txt, language) => {
+                for (let ln in question.translations) {
+                    const txt = question.translations[ln]
+                    if(ln.startsWith("_")){
+                        continue
+                    }
                     if (txt.indexOf("{" + field.name + "}") < 0) {
                         throw (
                             "Error in filter with fields at " +
                             context +
                             ".question." +
-                            language +
+                            ln +
                             ": The question text should contain every field, but it doesn't contain `{" +
                             field +
                             "}`: " +
                             txt
                         )
                     }
-                    return txt
-                })
+                }
             }
 
             if (option.default) {

Models/ThemeConfig/TagRenderingConfig.ts

@@ -239,6 +239,9 @@ export default class TagRenderingConfig {
                 throw `${context}: Detected a freeform key without rendering... Key: ${this.freeform.key} in ${context}`
             }
             for (const ln in this.render.translations) {
+                if(ln.startsWith("_")){
+                    continue
+                }
                 const txt: string = this.render.translations[ln]
                 if (txt === "") {
                     throw context + " Rendering for language " + ln + " is empty"

UI/LanguagePicker.ts

@@ -42,6 +42,9 @@ export default class LanguagePicker extends Toggle {
             return new Translation({ "*": nativeText })
         }
         for (const key in trans) {
+            if(key.startsWith("_")){
+                continue
+            }
             const translationInKey = allTranslations[lang][key]
             if (nativeText.toLowerCase() === translationInKey.toLowerCase()) {
                 translation[key] = nativeText

UI/i18n/Translation.ts

@@ -16,10 +16,6 @@ export class Translation extends BaseUIElement {
             throw `Translation without content (${context})`
         }
         this.context = translations["_context"] ?? context
-        if (translations["_context"] !== undefined) {
-            translations = { ...translations }
-            delete translations["_context"]
-        }
         if (typeof translations === "string") {
             translations = { "*": translations }
         }
@@ -28,7 +24,7 @@ export class Translation extends BaseUIElement {
             if (!translations.hasOwnProperty(translationsKey)) {
                 continue
             }
-            if (translationsKey === "_context") {
+            if (translationsKey === "_context" || translationsKey === "_meta") {
                 continue
             }
             count++