#!/usr/bin/env python3

# helper script for query-bookmarks.sh
# currently supports only Firefox
# folder support would be nice, though I doubt it is really useful
# useful links:
# http://kb.mozillazine.org/Profiles.ini_file
# https://stackoverflow.com/a/740183/12005228
# https://wiki.mozilla.org/Places:BookmarksComments

import sys
import os
from pathlib import Path
from configparser import ConfigParser
import tempfile
import shutil
import sqlite3
import subprocess


# TODO: somehow merge `chooser_program` selection with the logic in `zsh/functions.zsh`
if sys.platform == "darwin":
    firefox_home = Path.home() / "Library" / "Application Support" / "Firefox"
    chooser_program = ["choose", "-i"]
    clipboard_copy_program = ["pbcopy"]

    def notify_program_args(title, message, url):
        return ["terminal-notifier", "-title", title, "-message", message, "-open", url]


elif os.name == "posix":
    firefox_home = Path.home() / ".mozilla" / "firefox"
    chooser_program = ["rofi", "-dmenu", "-i", "-p", "bookmark", "-format", "i"]
    clipboard_copy_program = ["xsel", "--clipboard", "--input"]
    # clipboard_copy_program = ["xclip", "-in", "-selection", "clipboard"]

    def notify_program_args(title, message, url):
        return [
            "notify-send",
            "--icon=utilities-terminal",
            "--expire-time=3000",
            title,
            message,
        ]


else:
    raise Exception("platform '{}' is not supported!".format(sys.platform))


profiles_config = ConfigParser(interpolation=None)
profiles_config.read(firefox_home / "profiles.ini")

installs_sections = [s for s in profiles_config.sections() if s.startswith("Install")]
if not installs_sections:
    raise Exception("no Firefox installations detected!")
if len(installs_sections) > 1:
    raise Exception("multiple Firefox installations are not supported!")
profile_dir = firefox_home / profiles_config.get(installs_sections[0], "Default")

db_path = profile_dir / "weave" / "bookmarks.sqlite"
if not db_path.is_file():
    raise Exception("'{}' is not a file".format(db_path))


# Firefox holds a lock over the database file, so I can't connect to it even
# in the readonly mode: https://stackoverflow.com/a/7857866/12005228
# as a workaround I copy the file
db_copy_fd, db_copy_path = tempfile.mkstemp(prefix="bookmarks.", suffix=".sqlite")
os.close(db_copy_fd)

chooser_entries = []

try:
    shutil.copyfile(db_path, db_copy_path)
    db = sqlite3.connect(db_copy_path)

    urls = {}
    for urlId, url in db.execute("SELECT id, url FROM urls"):
        urls[urlId] = url

    for title, urlId, keyword in db.execute(
        "SELECT title, urlId, keyword FROM items WHERE kind = 1 AND validity AND NOT isDeleted"
    ):
        url = urls[urlId]
        chooser_entries.append((title, url))
        if keyword is not None:
            chooser_entries.append((keyword, url))

finally:
    os.remove(db_copy_path)


chooser_process = subprocess.Popen(
    chooser_program, stdin=subprocess.PIPE, stdout=subprocess.PIPE
)

with chooser_process.stdin as pipe:
    for title, url in chooser_entries:
        pipe.write("{} \u2014\u2014 {}\n".format(title, url).encode())

exit_code = chooser_process.wait()
if exit_code == 0:
    chosen_index = int(
        # an extra newline is inserted by rofi for whatever reason
        chooser_process.stdout.read().rstrip(b"\n")
    )
    _title, url = chooser_entries[chosen_index]
    print(url)

    subprocess.run(clipboard_copy_program, input=url.encode(), check=True)
    subprocess.run(
        notify_program_args(
            "query-bookmarks.py", "bookmark URL copied to clipboard!", url
        ),
        input=url.encode(),
        check=True,
    )