from textual_window import Window
from textual.widgets import RichLog

import os, json


class PluginLoader(Window):
	def __init__(self):
		super().__init__(
			id="Plugin Loader",
			mode="permanent",
			icon="⚙️",
			starting_horizontal="centerright",
			starting_vertical="lowermiddle",
			start_open=True
		)

	def on_mount(self):
		log = self.query_one(RichLog)
		log.write("[b]Finding plugins...[/]")

		# Find all plugins (they're just in the plugins folder for now)
		folders = [
			os.path.join(os.path.dirname(__file__), "plugins")
		]
		# path to the folder of all correctly formatted plugins
		plugin_paths = []

		for folder in folders:
			log.write(f"Searching {folder}...")
			plugin_folders = os.listdir(folder)

			for plugin_folder in plugin_folders:
				plugin_folder = os.path.join(folder, plugin_folder)

				if not os.path.isdir(plugin_folder):
					log.write(f"[d]Ignoring {plugin_folder} because it is not a folder.[/]")
					continue

				if not os.path.isdir(os.path.join(plugin_folder, "lua")):
					log.write(f"[d]Ignoring {plugin_folder} because it has no \"lua\" folder.[/]")
					continue

				if not os.path.isfile(os.path.join(plugin_folder, "plugin.json")):
					log.write(f"[d]Ignoring {plugin_folder} because it has no plugin.json file.[/]")
					continue

				with open(os.path.join(plugin_folder, "plugin.json"), "r") as f:
					try:
						plugin_json = json.loads(f.read())
						plugin_json["name"]
						plugin_json["version"]
						plugin_json["author"]
						plugin_json["dependencies"]
					except UnicodeDecodeError:
						log.write(f"[d]Ignoring {plugin_folder} because its plugin.json file is unreadable.[/]")
						continue
					except json.JSONDecodeError:
						log.write(f"[d]Ignoring {plugin_folder} because its plugin.json file is malformed.[/]")
						continue
					except KeyError as e:
						log.write(f"[d]Ignoring {plugin_folder} because its plugin.json file is missing the field {e}.")
						continue
					except Exception as e:
						log.write(f"[d]Ignoring {plugin_folder} because of error: {e}.[/]")
						continue

				

				log.write(f"[b green]FOUND[/] {plugin_json['name']} ({plugin_json['version']})")
				plugin_paths.append(plugin_folder)

	def compose(self):
		yield RichLog(markup=True, id="plugins-log")