import { useEffect, useState } from "react";
import { uploadingManager, UploadingTask } from "../network/uploading.ts";
import { MdArrowUpward } from "react-icons/md";

export default function UploadingSideBar() {
  const [showUploading, setShowUploading] = useState(false);

  useEffect(() => {
    const listener = () => {
      console.log(
        "Uploading tasks changed; show uploading: ",
        uploadingManager.hasTasks(),
      );
      setShowUploading(uploadingManager.hasTasks());
    };

    uploadingManager.addListener(listener);

    return () => {
      uploadingManager.removeListener(listener);
    };
  }, []);

  if (!showUploading) {
    return <></>;
  }

  return (
    <>
      <label
        htmlFor={"uploading-drawer"}
        className={"btn btn-square btn-ghost relative btn-accent text-primary"}
      >
        <div className={"w-6 h-6 overflow-hidden relative"}>
          <MdArrowUpward className={"move-up-animation pb-0.5"} size={24} />
          <div className={"absolute border-b-2 w-5 bottom-1 left-0.5"}></div>
        </div>
      </label>
      <div className="drawer w-0">
        <input
          id="uploading-drawer"
          type="checkbox"
          className="drawer-toggle"
        />
        <div className="drawer-side">
          <label
            htmlFor="uploading-drawer"
            aria-label="close sidebar"
            className="drawer-overlay"
          ></label>
          <div className="menu bg-base-200 text-base-content h-full w-80 p-4 overflow-y-auto ">
            <div className={"grid grid-cols-1"}>
              <h2 className={"text-xl mb-2"}>Uploading</h2>
              <UploadingList />
            </div>
          </div>
        </div>
      </div>
    </>
  );
}

function UploadingList() {
  const [tasks, setTasks] = useState(uploadingManager.getTasks());

  useEffect(() => {
    const listener = () => {
      setTasks(uploadingManager.getTasks());
    };

    uploadingManager.addListener(listener);

    return () => {
      uploadingManager.removeListener(listener);
    };
  }, []);

  return (
    <>
      {tasks.map((task) => {
        return <TaskTile key={task.id} task={task} />;
      })}
    </>
  );
}

function TaskTile({ task }: { task: UploadingTask }) {
  const [progress, setProgress] = useState(task.progress);

  const [error, setError] = useState<string | null>(null);

  useEffect(() => {
    const listener = () => {
      setProgress(task.progress);
      setError(task.errorMessage);
    };

    task.addListener(listener);

    return () => {
      task.removeListener(listener);
    };
  }, [task]);

  return (
    <div className={"card card-border border-base-300 p-2 my-2 w-full"}>
      <p className={"p-1 mb-2 w-full break-all line-clamp-2"}>
        {task.filename}
      </p>
      <progress
        className="progress progress-primary my-2"
        value={100 * progress}
        max={100}
      />
      {error && <p className={"text-error p-1"}>{error}</p>}
      <div className={"my-2 flex flex-row-reverse"}>
        {error && (
          <button
            className={"btn h-7 mr-1"}
            onClick={() => {
              task.start();
            }}
          >
            Retry
          </button>
        )}
        <button
          className={"btn btn-error h-7"}
          onClick={() => {
            const dialog = document.getElementById(
              `cancel_task_${task.id}`,
            ) as HTMLDialogElement;
            dialog.showModal();
          }}
        >
          Cancel
        </button>
      </div>
      <dialog id={`cancel_task_${task.id}`} className="modal">
        <div className="modal-box">
          <h3 className="text-lg font-bold">Cancel Task</h3>
          <p className="py-4">Are you sure you want to cancel this task?</p>
          <div className="modal-action">
            <form method="dialog">
              <button className="btn">Close</button>
            </form>
            <button
              className="btn btn-error mx-2"
              type={"button"}
              onClick={() => {
                task.cancel();
                const dialog = document.getElementById(
                  `cancel_task_${task.id}`,
                ) as HTMLDialogElement;
                dialog.close();
              }}
            >
              Confirm
            </button>
          </div>
        </div>
      </dialog>
    </div>
  );
}