refactoring

2020-01-10 12:07:21 +08:00
parent 51da68fee5
commit 26c6c1159e
15 changed files with 175 additions and 207 deletions
--- a/scripts/background/signiture.js
+++ b/scripts/background/signiture.js
@ -0,0 +1,68 @@
+const signitures = `
+## Usage
+new Extractor().task(...args).task(...args).start();
+
+## Extractor.task() Signitures:
+function(itemsSelector:string, fieldSelectors:string[])
+function(itemsSelector:string, fieldSelectors:string[], url:string, from:number, to:number, interval:number)
+function(itemsSelector:string, fieldSelectors:string[], url:string, pages:number[])
+function(itemsSelector:string, fieldSelectors:string[], urls:string[])
+
+## Example:
+// extract all links text & url under '.item' elements
+// use 'selector@attr' to get attribute of the field elements
+new Extractor().task(".item", ["a", "a@href"]).start();
+
+## See Detailed Help:
+https://git.jebbs.co/jebbs/data-extracter-extesion
+`.trim();
+
+function testArgs(...args) {
+    switch (args.length) {
+        case 0, 1:
+            return false;
+        case 2:
+            return args[0] && args[1] &&
+                (typeof args[0] == "string") &&
+                (args[1] instanceof Array) &&
+                testArrayVals(args[1], v => typeof v == "string");
+        case 3:
+            return args[0] && args[1] &&
+                typeof args[0] == "string" &&
+                args[1] instanceof Array &&
+                testArrayVals(args[1], v => typeof v == "string") &&
+                (
+                    (
+                        args[2] instanceof Array &&
+                        testArrayVals(args[2], v => typeof v == "string")
+                    ) || (
+                        args[2] instanceof ExtractResult
+                    )
+                );
+        case 4:
+            return args[0] && args[1] &&
+                typeof args[0] == "string" &&
+                args[1] instanceof Array &&
+                testArrayVals(args[1], v => typeof v == "string") &&
+                typeof args[2] == "string" &&
+                args[3] instanceof Array &&
+                testArrayVals(args[3], v => typeof v == "number");
+        case 6:
+            return args[0] && args[1] &&
+                typeof args[0] == "string" &&
+                args[1] instanceof Array &&
+                testArrayVals(args[1], v => typeof v == "string") &&
+                typeof args[2] == "string" &&
+                !isNaN(args[3]) && !isNaN(args[4]) && !isNaN(args[5]);
+        default:
+            return false;
+    }
+
+    function testArrayVals(arr, tester) {
+        return arr.reduce((p, c) => p && tester(c), true);
+    }
+}
+
+function argsToString(...args) {
+    return args.map(v => (v instanceof Array ? `[${v.join(', ')}]` : v.toString())).join(', ');
+}