From b7e2870ff58ef85370781aa04e9e0126988e39fd Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <koszko@koszko.org>
Date: Tue, 6 Jul 2021 18:25:34 +0200
Subject: show some settings of the current page in the popup

---
 background/settings_query.js | 98 +++++++-------------------------------------
 1 file changed, 14 insertions(+), 84 deletions(-)

(limited to 'background/settings_query.js')

diff --git a/background/settings_query.js b/background/settings_query.js
index ce01b80..d509b09 100644
--- a/background/settings_query.js
+++ b/background/settings_query.js
@@ -10,13 +10,12 @@
  * IMPORT make_once
  * IMPORT get_storage
  * IMPORT TYPE_PREFIX
+ * IMPORT for_each_possible_pattern
  * IMPORTS_END
  */
 
 var storage;
 
-var exports = {};
-
 async function init(fun)
 {
     storage = await get_storage();
@@ -24,94 +23,25 @@ async function init(fun)
     return fun;
 }
 
-// TODO: also support urls with specified ports
-function query(url, multiple)
+function check_pattern(pattern, multiple, matched)
 {
-    let proto_re = "[a-zA-Z]*:\/\/";
-    let domain_re = "[^/?#]+";
-    let segments_re = "/[^?#]*";
-    let query_re = "\\?[^#]*";
-
-    let url_regex = new RegExp(`\
-^\
-(${proto_re})\
-(${domain_re})\
-(${segments_re})?\
-(${query_re})?\
-#?.*\$\
-`);
-
-    let regex_match = url_regex.exec(url);
-    if (regex_match === null) {
-	console.log("bad url format", url);
-	return multiple ? [] : [undefined, undefined];
-    }
-
-    let [_, proto, domain, segments, query] = regex_match;
-
-    domain = domain.split(".");
-    let segments_trailing_dash =
-	segments && segments[segments.length - 1] === "/";
-    segments = (segments || "").split("/").filter(s => s !== "");
-    segments.unshift("");
-
-    let matched = [];
+    const settings = storage.get(TYPE_PREFIX.PAGE, pattern);
 
-    for (let d_slice = 0; d_slice < domain.length; d_slice++) {
-	let domain_part = domain.slice(d_slice).join(".");
-	let domain_wildcards = [];
-	if (d_slice === 0)
-	    domain_wildcards.push("");
-	if (d_slice === 1)
-	    domain_wildcards.push("*.");
-	if (d_slice > 0)
-	    domain_wildcards.push("**.");
-	domain_wildcards.push("***.");
+    if (settings === undefined)
+	return;
 
-	for (let domain_wildcard of domain_wildcards) {
-	    let domain_pattern = domain_wildcard + domain_part;
+    matched.push([pattern, settings]);
 
-	    for (let s_slice = segments.length; s_slice > 0; s_slice--) {
-		let segments_part = segments.slice(0, s_slice).join("/");
-		let segments_wildcards = [];
-		if (s_slice === segments.length) {
-		    if (segments_trailing_dash)
-			segments_wildcards.push("/");
-		    segments_wildcards.push("");
-		}
-		if (s_slice === segments.length - 1) {
-		    if (segments[s_slice] !== "*")
-			segments_wildcards.push("/*");
-		}
-		if (s_slice < segments.length &&
-		    (segments[s_slice] !== "**" ||
-		     s_slice < segments.length - 1))
-		    segments_wildcards.push("/**");
-		if (segments[s_slice] !== "***" ||
-		    s_slice < segments.length)
-		    segments_wildcards.push("/***");
-
-		for (let segments_wildcard of segments_wildcards) {
-		    let segments_pattern =
-			segments_part + segments_wildcard;
-
-		    let pattern = proto + domain_pattern + segments_pattern;
-		    console.log("trying", pattern);
-		    let settings = storage.get(TYPE_PREFIX.PAGE, pattern);
-
-		    if (settings === undefined)
-			continue;
-
-		    if (!multiple)
-			return [pattern, settings];
+    if (!multiple)
+	return false;
+}
 
-		    matched.push([pattern, settings]);
-		}
-	    }
-	}
-    }
+function query(url, multiple)
+{
+    const matched = [];
+    for_each_possible_pattern(url, p => check_pattern(p, multiple, matched));
 
-    return multiple ?  matched : [undefined, undefined];
+    return multiple ? matched : (matched[0] || [undefined, undefined]);
 }
 
 function query_best(url)
-- 
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