class PaginateTable {
  constructor(url) {
    this.page = 0;
    this.items = [];
    this.url = url;
    this.headers = [];
  }

  async contents() {
    if(this.page < 0) this.page = 0;

    const resp = await fetch(`${this.url}?page=${this.page}`);
    console.assert(resp.status == 200, "failed to get it");

    this.items = await resp.json();

    this.headers = Object.keys(this.items[0]);

    return this.items;
  }
}

class GetJson {
  constructor(url) {
    this.item;
    this.url = url;
  }

  async item() {
    const resp = await fetch(`${this.url}`);
    console.assert(resp.status == 200, "failed to get it");

    this.item = await resp.json();
    return this.item;
  }
}

const ConfirmDelete = async (table, obj_id) => {
  if(confirm("Are you sure?")) {
    await fetch("/api/admin/table/" + table + "/" + obj_id + "/",
      { method: "DELETE" });
    window.location = "/admin/table/" + table + "/";
  } else {
    return false;
  }
}