Replace fragile Niadd patch with patch script

.gitea/workflows/build.yml

@@ -6,7 +6,7 @@ on:
       - main
     paths:
       - ".gitea/workflows/build.yml"
-      - "patches/**"
+      - "scripts/**"
   workflow_dispatch:
 
 env:
@@ -62,21 +62,34 @@ jobs:
           git -C work/Futon rev-parse HEAD
           git -C work/kotatsu-parsers-redo rev-parse HEAD
 
-      - name: Check and apply Niadd parser patch
+      - name: Apply Niadd parser modifications
         shell: bash
         run: |
           set -euxo pipefail
 
-          PATCH_FILE="${PWD}/patches/ninemanga-niadd.patch"
+          python3 scripts/patch_ninemanga_niadd.py \
+            work/kotatsu-parsers-redo
 
-          git -C work/kotatsu-parsers-redo apply --check "${PATCH_FILE}"
-          git -C work/kotatsu-parsers-redo apply "${PATCH_FILE}"
+          PARSER_FILE="work/kotatsu-parsers-redo/src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt"
 
-          grep -F '"ru.niadd.com"' \
-            work/kotatsu-parsers-redo/src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt
+          echo "=== Verify Niadd domain ==="
+          grep -F '"ru.niadd.com"' "${PARSER_FILE}"
 
-          grep -F '@MangaSourceParser("NINEMANGA_RU", "Niadd Русский", "ru")' \
-            work/kotatsu-parsers-redo/src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt
+          echo "=== Verify source annotation ==="
+          grep -F '@MangaSourceParser("NINEMANGA_RU", "Niadd Русский", "ru")' "${PARSER_FILE}"
+
+          echo "=== Verify Niadd pagination ==="
+          grep -F 'domain.endsWith("niadd.com")' "${PARSER_FILE}"
+
+          echo "=== Ensure old Russian domain is gone ==="
+          if grep -F '"ru.ninemanga.com"' "${PARSER_FILE}"; then
+            echo "ERROR: old ru.ninemanga.com domain is still present"
+            exit 1
+          fi
+
+          echo "=== Resulting diff ==="
+          git -C work/kotatsu-parsers-redo diff -- \
+            src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt
 
       - name: Connect Futon to patched local parsers
         shell: bash

patches/ninemanga-niadd.patch

@@ -1,39 +0,0 @@
-diff --git a/src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt b/src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt
---- a/src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt
-+++ b/src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt
-@@ -89,6 +89,14 @@
-                 }
--            } else {
--                append("/category/index_")
--                append(page.toString())
--            }
-+            } else if (domain.endsWith("niadd.com")) {
-+                if (page == 1) {
-+                    append("/category/")
-+                } else {
-+                    append("/category/index_")
-+                    append(page.toString())
-+                    append(".html")
-+                }
-+            } else {
-+                append("/category/index_")
-+                append(page.toString())
-+            }
-         }
-@@ -199,4 +199,4 @@
-         //ru
--        status.contains("постоянный") -> MangaState.ONGOING
--        status.contains("завершенный") -> MangaState.FINISHED
-+        status.contains("постоянный", ignoreCase = true) -> MangaState.ONGOING
-+        status.contains("завершенный", ignoreCase = true) -> MangaState.FINISHED
-         //de
-@@ -265,7 +265,6 @@
--    @Broken
--    @MangaSourceParser("NINEMANGA_RU", "NineManga Русский", "ru")
-+    @MangaSourceParser("NINEMANGA_RU", "Niadd Русский", "ru")
-     class Russian(context: MangaLoaderContext) : NineMangaParser(
-         context,
-         MangaParserSource.NINEMANGA_RU,
--        "ru.ninemanga.com",
-+        "ru.niadd.com",
-     )

scripts/patch_ninemanga_niadd.py

@@ -0,0 +1,106 @@
+#!/usr/bin/env python3
+
+from pathlib import Path
+import sys
+
+
+if len(sys.argv) != 2:
+    print(f"Usage: {sys.argv[0]} <kotatsu-parsers-redo-dir>", file=sys.stderr)
+    sys.exit(2)
+
+
+repo_dir = Path(sys.argv[1]).resolve()
+
+parser_file = (
+    repo_dir
+    / "src/main/kotlin/org/koitharu/kotatsu/parsers/site/all/NineMangaParser.kt"
+)
+
+if not parser_file.is_file():
+    print(f"ERROR: parser file not found: {parser_file}", file=sys.stderr)
+    sys.exit(1)
+
+
+text = parser_file.read_text(encoding="utf-8")
+
+
+def replace_exact(name: str, old: str, new: str) -> None:
+    global text
+
+    count = text.count(old)
+
+    if count != 1:
+        print(
+            f"ERROR: patch '{name}' expected exactly 1 match, found {count}",
+            file=sys.stderr,
+        )
+        print(
+            "Upstream NineMangaParser.kt has probably changed.",
+            file=sys.stderr,
+        )
+        sys.exit(1)
+
+    text = text.replace(old, new, 1)
+    print(f"[OK] {name}")
+
+
+replace_exact(
+    "Niadd category pagination",
+    '''            } else {
+                append("/category/index_")
+                append(page.toString())
+            }
+''',
+    '''            } else if (domain.endsWith("niadd.com")) {
+                if (page == 1) {
+                    append("/category/")
+                } else {
+                    append("/category/index_")
+                    append(page.toString())
+                    append(".html")
+                }
+            } else {
+                append("/category/index_")
+                append(page.toString())
+            }
+''',
+)
+
+
+replace_exact(
+    "Russian status parsing",
+    '''        //ru
+        status.contains("постоянный") -> MangaState.ONGOING
+        status.contains("завершенный") -> MangaState.FINISHED
+''',
+    '''        //ru
+        status.contains("постоянный", ignoreCase = true) -> MangaState.ONGOING
+        status.contains("завершенный", ignoreCase = true) -> MangaState.FINISHED
+''',
+)
+
+
+replace_exact(
+    "NineManga RU to Niadd RU",
+    '''    @Broken
+    @MangaSourceParser("NINEMANGA_RU", "NineManga Русский", "ru")
+    class Russian(context: MangaLoaderContext) : NineMangaParser(
+        context,
+        MangaParserSource.NINEMANGA_RU,
+        "ru.ninemanga.com",
+    )
+''',
+    '''    @MangaSourceParser("NINEMANGA_RU", "Niadd Русский", "ru")
+    class Russian(context: MangaLoaderContext) : NineMangaParser(
+        context,
+        MangaParserSource.NINEMANGA_RU,
+        "ru.niadd.com",
+    )
+''',
+)
+
+
+parser_file.write_text(text, encoding="utf-8")
+
+print()
+print(f"[OK] Patched: {parser_file}")