1 files changed, 51 insertions, 0 deletions
diff --git a/src/utils.mjs b/src/utils.mjs
new file mode 100644
index 0000000..06a2519
--- /dev/null
+++ b/src/utils.mjs
@@ -0,0 +1,51 @@
+export class Manager {
+  constructor(description, listData) {
+    this.description = description;
+    this.listData = listData;
+    this.count = listData.length;
+  }
+  store() {
+    let stringData = JSON.stringify(this.listData);
+    localStorage.setItem(this.description, stringData);
+  }
+  render() {
+    let renderedHTML = this.listData
+      .map((i) => {
+        return i.render();
+      })
+      .join("");
+    let elementId = this.description + "_list";
+    document.getElementById(elementId).innerHTML = renderedHTML;
+    this.addBehaviour();
+  }
+  addBehaviour() {
+    for (let idx = 0; idx < this.listData.length; ++idx) {
+      const elementId = this.description + "_" + this.listData[idx].id;
+      const p = document.getElementById(elementId);
+      p.addEventListener("click", () => {
+        this.listData[idx].toggle();
+        this.store();
+        p.classList.toggle("is-success");
+        p.classList.toggle("is-danger");
+      });
+    }
+  }
+  active() {
+    return this.listData.filter(function (c) {
+      return c.status;
+    });
+  }
+  inactive() {
+    return this.listData.filter(function (c) {
+      return !c.status;
+    });
+  }
+}
+
+export function shuffle(array) {
+  for (let i = array.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [array[i], array[j]] = [array[j], array[i]];
+  }
+  return array;
+}