From f04e77faa68095bfe7fbe8883aad59aff157da02 Mon Sep 17 00:00:00 2001
From: sinanmohd <sinan@sinanmohd.com>
Date: Sun, 8 Oct 2023 14:36:33 +0530
Subject: server/opensubtitles/search_ohash: use the new fuzzy search algorithm

---
 lib/attr.lua             | 22 ++++++++++++++--------
 server/opensubtitles.lua | 46 +++++++++++++++++++---------------------------
 tests.lua                |  5 +++--
 3 files changed, 36 insertions(+), 37 deletions(-)

diff --git a/lib/attr.lua b/lib/attr.lua
index 8c1613a..565f4c1 100644
--- a/lib/attr.lua
+++ b/lib/attr.lua
@@ -32,6 +32,8 @@ local build_dlim = function (name, attrs)
 	}
 	local series = {
 		'[Ss]%d%d?' .. dlim .. '[Ee]%d%d?',
+		'[Ss]%d%d?' .. dlim .. '[Ee][Pp]' .. dlim .. '%d%d?',
+		'Season' .. dlim .. '%d%d?' .. dlim .. 'Episode' .. dlim .. '%d%d?'
 	}
 	local sizes = {
 		'%d%d%d' .. dlim .. '[Mm][Bb]',
@@ -171,9 +173,9 @@ local weigh = function (a1, a2)
 	local key_score, score
 
 	key_score = {
-		name = 10,
-		season = 10,
-		episode = 10,
+		season = 15,
+		episode = 15,
+		title = 10,
 		source = 7,
 		scene = 5,
 		vcodec = 3,
@@ -184,16 +186,20 @@ local weigh = function (a1, a2)
 
 	score = 0
 	for k, v in pairs(a1) do
-		if not a2[k] then
+		if not a2[k] or k == 'episode' then
 			goto continue
 		end
 
-		if k == 'name' then
-			for _, name in pairs(v) do
-				if util.array_search(a2.name, name) then
-					score = score + key_score.name
+		if k == 'title' then
+			for _, title in pairs(v) do
+				if util.array_search(a2.title, title) then
+					score = score + key_score.title
 				end
 			end
+		elseif k == 'season' then
+			if a1.season == a2.season and a1.episode == a2.episode then
+				score = score + key_score.season + key_score.episode
+			end
 		else
 			if v == a2[k] then
 				score = score + (key_score[k] or key_score.default)
diff --git a/server/opensubtitles.lua b/server/opensubtitles.lua
index f0c6195..d5b36e4 100644
--- a/server/opensubtitles.lua
+++ b/server/opensubtitles.lua
@@ -114,27 +114,6 @@ local language = 'english'
 local domain = 'https://www.opensubtitles.org'
 local tries = 10
 
-local search_ohash = function (ohash)
-	local fetch, hcode, url, id
-
-	url = domain .. '/en' .. '/search/sublanguageid-' ..
-	      languages[language] .. '/moviehash-' .. ohash
-	fetch, hcode = curl.get(url, nil, nil, tries)
-
-	id = fetch:match('/en/subtitleserve/sub/[^\n]*\n[^\n]*iduser%-0')
-	if id then
-		id = id:match('/en/subtitleserve/sub/%d*')
-	end
-
-	if hcode and not id then
-		util.error('opensubtitles: search_ohash')
-	end
-
-	if id then
-		return domain .. id
-	end
-end
-
 local ids_fetch = function (page)
 	local iter, no_name, line, id, name, tab
 
@@ -187,6 +166,23 @@ local ids_fetch = function (page)
 	return tab
 end
 
+local search_ohash = function (ohash, name)
+	local fetch, hcode, url, id
+
+	url = domain .. '/en' .. '/search/sublanguageid-' ..
+	      languages[language] .. '/moviehash-' .. ohash
+	fetch, hcode = curl.get(url, nil, nil, tries)
+
+	id = attr.fuzzy(name, ids_fetch(fetch))
+	if hcode and not id then
+		util.error('opensubtitles: search_ohash')
+	end
+
+	if id then
+		return domain .. '/en/subtitleserve/sub/' .. id
+	end
+end
+
 local search_filesize = function (filesize, name)
 	local fetch, hcode, url, id, a
 
@@ -203,11 +199,8 @@ local search_filesize = function (filesize, name)
 		return nil
 	end
 
-	print(url)
-	util.table_print(ids_fetch(fetch))
 	id = attr.fuzzy(name, ids_fetch(fetch))
 	if id then
-		print(domain .. '/en/subtitleserve/sub/' .. id)
 		return domain .. '/en/subtitleserve/sub/' .. id
 	end
 end
@@ -215,13 +208,12 @@ end
 local search = function (path, out, info)
 	local ohash, link, name
 
+	name = info.name or util.string_vid_path_to_name(path)
 	if util.file_exists(path) then
 		ohash = util.opensubtitles_hash(path)
-		link = search_ohash(ohash)
+		link = search_ohash(ohash, name)
 	end
-
 	if not link then
-		name = info.name or util.string_vid_path_to_name(path)
 		link = search_filesize(info.filesize, name)
 	end
 
diff --git a/tests.lua b/tests.lua
index f519964..cffcfc9 100755
--- a/tests.lua
+++ b/tests.lua
@@ -28,11 +28,12 @@ local test_subscene = function ()
 end
 
 local test_opensubtitles = function ()
-    local ohash, id, new_id
+    local ohash, name, id, new_id
 
     ohash = '395787dbe5b42001'
+    name = 'Fight.Club.1999.REMASTERED.720p.BRRip.XviD.AC3-RARBG'
     id = '5449593'
-    new_id = opensubtitles.search_ohash(ohash)
+    new_id = opensubtitles.search_ohash(ohash, name)
     if new_id then
         new_id = new_id:match('%d*$')
     end
-- 
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