from configparser import ConfigParser
from pathlib import Path
from json import dump, load
import subprocess
from tkinter import *
from tkinter import filedialog
from tkinter.ttk import *

config = ConfigParser()
options = {"ftp": ["host", "user", "pass", "lftp"], "file": ["local", "remote"]}


def check_config_valid(config: ConfigParser, options: dict[str, list[str]]) -> bool:
    for sec in options:
        if not config.has_section(sec):
            return False
        for opt in options[sec]:
            if not config.has_option(sec, opt):
                return False
    return True


def set_default_config(config: ConfigParser, options: dict[str, list[str]]) -> None:
    config.clear()
    for sec in options:
        config.add_section(sec)
        for opt in options[sec]:
            config[sec][opt] = ""
    with open("config.ini", "w") as f:
        config.write(f)


def generate_db(config: ConfigParser) -> None:
    local_dir = Path(config["file"]["local"])
    categories = Path(local_dir, "categories")
    output = []
    for category in categories.iterdir():
        if not category.is_dir():
            continue
        output_category = {"name": category.name, "files": []}
        for file in category.iterdir():
            output_category["files"].append(file.name)
        output.append(output_category)
    with open(Path(local_dir, "db.json"), "w") as f:
        dump(output, f)


# generate_db(config)


def sync_all_command() -> list[str]:
    return [
        config["ftp"]["lftp"],
        f'-e mirror -R -e --parallel=10 {config["file"]["local"]} {config["file"]["remote"]}; exit',
        "-u",
        f'{config["ftp"]["user"]},{config["ftp"]["pass"]}',
        config["ftp"]["host"],
    ]


def sync_files_command() -> list[str]:
    return [
        config["ftp"]["lftp"],
        f'-e mirror -R -e --parallel=10 {config["file"]["local"]}/categories {config["file"]["remote"]}/categories; exit',
        "-u",
        f'{config["ftp"]["user"]},{config["ftp"]["pass"]}',
        config["ftp"]["host"],
    ]


def select_lftp(_: Event) -> None:
    file_path = filedialog.askopenfilename()
    config["ftp"]["lftp"] = file_path
    lftp_entry.delete(0, END)
    lftp_entry.insert(0, file_path)


def select_local(_: Event) -> None:
    file_path = filedialog.askdirectory()
    config["file"]["local"] = file_path
    local_entry.delete(0, END)
    local_entry.insert(0, file_path)


def load_config(_: Event) -> None:
    config.read("config.ini")
    if not check_config_valid(config, options):
        set_default_config(config, options)
    host_entry.delete(0, END)
    host_entry.insert(0, config["ftp"]["host"])
    user_entry.delete(0, END)
    user_entry.insert(0, config["ftp"]["user"])
    pass_entry.delete(0, END)
    pass_entry.insert(0, config["ftp"]["pass"])
    lftp_entry.delete(0, END)
    lftp_entry.insert(0, config["ftp"]["lftp"])
    local_entry.delete(0, END)
    local_entry.insert(0, config["file"]["local"])
    remote_entry.delete(0, END)
    remote_entry.insert(0, config["file"]["remote"])


def get_config() -> None:
    config["ftp"]["host"] = host_entry.get()
    config["ftp"]["user"] = user_entry.get()
    config["ftp"]["pass"] = pass_entry.get()
    config["ftp"]["lftp"] = lftp_entry.get()
    config["file"]["local"] = local_entry.get()
    config["file"]["remote"] = remote_entry.get()


def save_config(_: Event) -> None:
    get_config()
    with open("config.ini", "w") as f:
        config.write(f)


# print(subprocess.run(sync_files_command))

config.read("config.ini")
if not check_config_valid(config, options):
    set_default_config(config, options)

root = Tk()

ftp_frm = Frame(root, border=1)
ftp_frm.grid(row=0, column=0, pady=10, padx=10)

Label(ftp_frm, text="FTP Settings").grid(row=0, column=0, columnspan=3)

Label(ftp_frm, text="Host", width=10).grid(row=1, column=0)
host_entry = Entry(ftp_frm, width=40)
host_entry.insert(0, config["ftp"]["host"])
host_entry.grid(row=1, column=1, columnspan=2)

Label(ftp_frm, text="Username", width=10).grid(row=2, column=0)
user_entry = Entry(ftp_frm, width=40)
user_entry.insert(0, config["ftp"]["user"])
user_entry.grid(row=2, column=1, columnspan=2)

Label(ftp_frm, text="Password", width=10).grid(row=3, column=0)
pass_entry = Entry(ftp_frm, width=40, show="*")
pass_entry.insert(0, config["ftp"]["pass"])
pass_entry.grid(row=3, column=1, columnspan=2)

Label(ftp_frm, text="lftp Path", width=10).grid(row=4, column=0)
lftp_entry = Entry(ftp_frm, width=29)
lftp_entry.insert(0, config["ftp"]["lftp"])
lftp_entry.grid(row=4, column=1)
lftp_select_btn = Button(ftp_frm, text="Select...", width=10)
lftp_select_btn.grid(row=4, column=2)
lftp_select_btn.bind("<Button-1>", select_lftp)

file_frm = Frame(root)
file_frm.grid(row=1, column=0, pady=10, padx=10)

Label(file_frm, text="File Path Settings").grid(row=0, column=0, columnspan=3)

Label(file_frm, text="Local Path", width=12).grid(row=1, column=0)
local_entry = Entry(file_frm, width=27)
local_entry.insert(0, config["file"]["local"])
local_entry.grid(row=1, column=1)
local_select_btn = Button(file_frm, text="Select...", width=10)
local_select_btn.grid(row=1, column=2)
local_select_btn.bind("<Button-1>", select_local)

Label(file_frm, text="Remote Path", width=12).grid(row=2, column=0)
remote_entry = Entry(file_frm, width=38)
remote_entry.insert(0, config["file"]["remote"])
remote_entry.grid(row=2, column=1, columnspan=2)

actions_frm = Frame(root)
actions_frm.grid(row=2, column=0, pady=10, padx=10)

load_btn = Button(actions_frm, text="Load Config", width=12)
load_btn.grid(row=0, column=0)
load_btn.bind("<Button-1>", load_config)

save_btn = Button(actions_frm, text="Save Config", width=12)
save_btn.grid(row=0, column=1)
save_btn.bind("<Button-1>", save_config)

Button(actions_frm, text="Sync all Files", width=12).grid(row=0, column=2)
Button(actions_frm, text="Sync PDF Files", width=12).grid(row=0, column=3)

root.mainloop()