From 4f351fc9d3bddc823886cc658c9e55a4e3118f7b Mon Sep 17 00:00:00 2001
From: Martin Chodur <m.chodur@seznam.cz>
Date: Fri, 16 Feb 2024 22:26:17 +0100
Subject: [PATCH] feat: support import from songbook.fun

Signed-off-by: Martin Chodur <m.chodur@seznam.cz>
---
 appsscript.json                 |  6 ++++--
 src/import/import.ts            |  7 ++++++-
 src/import/sites/songbookFun.ts | 37 +++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 3 deletions(-)
 create mode 100644 src/import/sites/songbookFun.ts

diff --git a/appsscript.json b/appsscript.json
index bfac12e3..46ecd2a6 100644
--- a/appsscript.json
+++ b/appsscript.json
@@ -27,7 +27,8 @@
         "https://akordy.kytary.cz/",
         "https://pdfmerge.w69b.com/",
         "https://api.qrserver.com/",
-        "https://acordes.lacuerda.net/"
+        "https://acordes.lacuerda.net/",
+        "https://www.songbook.fun/"
       ]
     },
     "docs": {}
@@ -43,6 +44,7 @@
     "https://akordy.kytary.cz/",
     "https://api.qrserver.com/",
     "https://acordes.lacuerda.net/",
-    "https://velky-zpevnik.cz/"
+    "https://velky-zpevnik.cz/",
+    "https://www.songbook.fun/"
   ]
 }
diff --git a/src/import/import.ts b/src/import/import.ts
index dcdd638c..b4f11c2e 100644
--- a/src/import/import.ts
+++ b/src/import/import.ts
@@ -18,6 +18,11 @@ function getSupportedChordsImportSites() {
       regexp: /tabs\.ultimate-guitar\.com/,
       processor: getUltimateGuitarChords,
     },
+    {
+      domain: "songbook.fun",
+      regexp: /songbook\.fun/,
+      processor: getSongbookFunChords,
+    },
     {
       domain: "lacuerda.net",
       regexp: /acordes\.lacuerda\.net/,
@@ -75,7 +80,7 @@ function writeChordsToDocument(
       emptyLines = 0;
     }
     body.appendParagraph(lineText);
-    beginning = false
+    beginning = false;
   }
 
   if (chords.videoLink !== "") {
diff --git a/src/import/sites/songbookFun.ts b/src/import/sites/songbookFun.ts
new file mode 100644
index 00000000..e9d01629
--- /dev/null
+++ b/src/import/sites/songbookFun.ts
@@ -0,0 +1,37 @@
+function getSongbookFunChords(url: string) {
+  const html = UrlFetchApp.fetch(url).getContentText();
+  const chordsDivRegexp = /<section class="Col2">\s*(\S[\s\S]*)<\/section>/g;
+  const chordsDivMatch = html.match(chordsDivRegexp);
+  if (chordsDivMatch === null) {
+    throw Error("failed to find the songtext div.");
+  }
+  const chordsText = chordsDivMatch[0]
+    .replace(
+      /<span class="Song-chord" data-chord="([^"]+)"><\/span>/g,
+      function (a: string, b: string) {
+        return "%" + b.replace(/,/g, "").replace(/↓/g, "") + "%";
+      }
+    )
+    .replace(/<\/p>/g, " \n")
+    .replace(/<br>/g, " \n")
+    .replace(/&#x27;/g, "'")
+    .replace(/<[^>]+>/g, "");
+  const metadataRegexp =
+    /<title>(.+) Chords &amp; Tabs by (.+) for Ukulele.*<\/title>/;
+  const metadataMatch = html.match(metadataRegexp);
+  if (metadataMatch === null || metadataMatch.length !== 3) {
+    throw Error("failed to find the chords metadata.");
+  }
+  let youtubeLink = "";
+  const youtubeLinkRegexp = /href="([^"]+)".*title="YouTube"/;
+  const youtubeMatch = html.match(youtubeLinkRegexp);
+  if (youtubeMatch && youtubeMatch.length === 2) {
+    youtubeLink = youtubeMatch[1];
+  }
+  return {
+    artist: metadataMatch[1],
+    songName: metadataMatch[2],
+    videoLink: youtubeLink,
+    rows: extractInlineChords(chordsText.split("\n")),
+  };
+}