#! /usr/bin/env nix-shell
#! nix-shell /etc/nixos/nixos/script-dependencies.nix -i python

import argparse
import mimetypes
import os
from pathlib import Path
from shutil import which
from typing import Any

import requests  # type: ignore
from common.common import (  # type: ignore
    does_desktop_entry_exist,
    notify,
    read_secret_file,
)
from pyperclip import copy  # type: ignore


def zipline(
    file_path: Path,
    instance_url: str,
    application_name: str | None = None,
    desktop_entry: str | None = None,
) -> Any:
    token = read_secret_file("zipline")

    if not os.path.isfile(file_path):
        raise FileNotFoundError(f"File at {file_path} does not exist.")

    use_notify_send = False
    if application_name and desktop_entry:
        if not does_desktop_entry_exist(desktop_entry=desktop_entry):
            raise FileNotFoundError("Desktop entry does not exist.")
        if not which("notify-send"):
            raise FileNotFoundError("notify-send is not installed.")
        use_notify_send = True

    content_type = mimetypes.guess_type(file_path)[0] or "application/octet-stream"

    try:
        headers = {"authorization": token}
        files = {
            "file": (os.path.basename(file_path), open(file_path, "rb"), content_type)
        }
        response = requests.post(
            f"{instance_url.rstrip('/')}/api/upload", headers=headers, files=files
        )

        if response.status_code == 200:
            response_data = response.json()
            link = response_data.get("files", [None])[0]

            if link:
                copy(text=link)
                print(f"Link copied to clipboard: {link}")

                if use_notify_send:
                    notify(
                        application_name=application_name,
                        title="Upload Successful",
                        message=f"Link copied to clipboard: {link}",
                        urgency="low",
                        category="transfer.complete",
                        icon=file_path,
                    )
            else:
                raise ValueError("Invalid response format.")
        else:
            error_message = response.text
            raise Exception(error_message)

    except BaseException as e:
        if use_notify_send:
            notify(
                application_name=application_name,
                title="Upload Failed",
                message=f"An error occurred: {e}",
                urgency="normal",
                category="transfer.error",
                icon=file_path,
            )
        raise e


if __name__ == "__main__":
    parser = argparse.ArgumentParser(
        prog="zipline.py",
        description="Upload a file to a Zipline instance.",
        epilog="Example usage: zipline.py /path/to/file.txt",
    )
    parser.add_argument("file", help="The file to upload.")
    parser.add_argument(
        "--url",
        help="The URL of the Zipline instance. Defaults to 'https://csw.im'.",
        default="https://csw.im",
    )
    parser.add_argument(
        "--application-name",
        help="The name of the application that is uploading the file. Defaults to 'Zipline'.",
        default="Zipline",
    )
    parser.add_argument(
        "--desktop-entry",
        help="The desktop entry file for the application that is uploading the file. If this is provided, notify-send will be invoked to display a notification if the upload succeeds or fails.",
        default=None,
    )

    args = parser.parse_args()

    zipline(
        file_path=args.file,
        instance_url=args.url,
        application_name=args.application_name,
        desktop_entry=args.desktop_entry,
    )