From eacb38928e409e720fc826b195e828854d648a1d Mon Sep 17 00:00:00 2001
From: "Felix W. Dekker" <felix@fwdekker.com>
Date: Fri, 14 May 2021 15:29:43 +0200
Subject: [PATCH] Add wrongly-cased link and page state

Fixes #45.
---
 package.json             |  2 +-
 src/main/js/DOM.js       |  4 ++++
 src/main/js/MediaWiki.js | 19 ++++++++++++++++++-
 3 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 8dc4fec..781032b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "interlanguage-checker",
-    "version": "1.11.7",
+    "version": "1.12.0",
     "description": "Check the consistency of MediaWiki interlanguage links in a simple overview.",
     "author": "Felix W. Dekker",
     "browser": "dist/bundle.js",
diff --git a/src/main/js/DOM.js b/src/main/js/DOM.js
index a660bc4..a2b5b85 100644
--- a/src/main/js/DOM.js
+++ b/src/main/js/DOM.js
@@ -356,6 +356,8 @@ export class InterlangTable {
                             return this._createIcon("chain-broken", "Misses one or more links 😕", ["error"]);
                         case "redirected":
                             return this._createIcon("mail-forward", "Links to a redirect 😕", ["warning"]);
+                        case "wrongly-cased":
+                            return this._createIcon("text-height", "Links with incorrect capitalisation 😕", ["warning"]);
                         default:
                             throw new Error(`Invalid page state '${state}'`);
                     }
@@ -375,6 +377,8 @@ export class InterlangTable {
                         return `<span></span>`;
                     case "redirected":
                         return this._createIcon("mail-forward", "Links to a redirect 😕", ["warning"]);
+                    case "wrongly-cased":
+                        return this._createIcon("text-height", "Links with incorrect capitalisation 😕", ["warning"]);
                     default:
                         throw new Error(`Invalid link state '${linkState}'`);
                 }
diff --git a/src/main/js/MediaWiki.js b/src/main/js/MediaWiki.js
index 46412de..276c269 100644
--- a/src/main/js/MediaWiki.js
+++ b/src/main/js/MediaWiki.js
@@ -33,6 +33,18 @@ export class InterlangLink {
         return other instanceof InterlangLink && this.lang === other.lang && this.title === other.title;
     }
 
+    /**
+     * Returns `true` if and only if the given object equals this `InterlangLink`, ignoring the case of the titles.
+     *
+     * @param other {*} the object to compare to this `InterlangLink`
+     * @returns {boolean} `true` if and only if the given object equals this `InterlangLink`, ignoring the case of the
+     * titles
+     */
+    equalsIgnoringCase(other) {
+        return other instanceof InterlangLink && this.lang === other.lang
+            && this.title.toLowerCase() === other.title.toLowerCase();
+    }
+
     /**
      * Converts this `InterlangLink` to a string.
      *
@@ -232,6 +244,9 @@ export class InterlangNetwork {
         if (source.langLinks.some(it => it.equals(destination.link)))
             return isSelfLangLink ? "self-linked" : "linked";
 
+        if (source.langLinks.some(it => it.equalsIgnoringCase(destination.link)))
+            return isSelfLangLink ? "self-linked" : "wrongly-cased";
+
         if (source.langLinks.some(link => this.redirects.some(it => it.equals(new Redirect(link, destination.link)))))
             return isSelfLangLink ? "self-linked" : "redirected";
 
@@ -267,6 +282,8 @@ export class InterlangNetwork {
             selfStates.push("unlinked");
         if (pageStates.some(({verdict}) => verdict === "redirected"))
             selfStates.push("redirected");
+        if (pageStates.some(({verdict}) => verdict === "wrongly-cased"))
+            selfStates.push("wrongly-cased");
 
         if (selfStates.length === 0)
             selfStates.push("perfect");
@@ -285,7 +302,7 @@ export class InterlangNetwork {
             const verdict = this.getPageVerdict(page).self;
             if (verdict.some(it => ["not-found", "unlinked"].includes(it)))
                 return mergeStates(states, state, "broken");
-            if (verdict.some(it => ["wrongly-ordered", "doubly-linked", "self-linked", "redirected"].includes(it)))
+            if (verdict.some(it => ["wrongly-ordered", "doubly-linked", "self-linked", "redirected", "wrongly-cased"].includes(it)))
                 return mergeStates(states, state, "flawed");
             return mergeStates(states, state, "perfect");
         }, "perfect");