# imports - standard imports
import json
import os
from collections import defaultdict


def get_site_config(site, bench_path="."):
	config_path = os.path.join(bench_path, "sites", site, "site_config.json")
	if not os.path.exists(config_path):
		return {}
	with open(config_path) as f:
		return json.load(f)


def put_site_config(site, config, bench_path="."):
	config_path = os.path.join(bench_path, "sites", site, "site_config.json")
	with open(config_path, "w") as f:
		return json.dump(config, f, indent=1)


def update_site_config(site, new_config, bench_path="."):
	config = get_site_config(site, bench_path=bench_path)
	config.update(new_config)
	put_site_config(site, config, bench_path=bench_path)


def set_nginx_port(site, port, bench_path=".", gen_config=True):
	set_site_config_nginx_property(
		site, {"nginx_port": port}, bench_path=bench_path, gen_config=gen_config
	)


def set_ssl_certificate(site, ssl_certificate, bench_path=".", gen_config=True):
	set_site_config_nginx_property(
		site,
		{"ssl_certificate": ssl_certificate},
		bench_path=bench_path,
		gen_config=gen_config,
	)


def set_ssl_certificate_key(site, ssl_certificate_key, bench_path=".", gen_config=True):
	set_site_config_nginx_property(
		site,
		{"ssl_certificate_key": ssl_certificate_key},
		bench_path=bench_path,
		gen_config=gen_config,
	)


def set_site_config_nginx_property(site, config, bench_path=".", gen_config=True):
	from bench.config.nginx import make_nginx_conf
	from bench.bench import Bench

	if site not in Bench(bench_path).sites:
		raise Exception("No such site")
	update_site_config(site, config, bench_path=bench_path)
	if gen_config:
		make_nginx_conf(bench_path=bench_path)


def set_url_root(site, url_root, bench_path="."):
	update_site_config(site, {"host_name": url_root}, bench_path=bench_path)


def add_domain(site, domain, ssl_certificate, ssl_certificate_key, bench_path="."):
	domains = get_domains(site, bench_path)
	for d in domains:
		if (isinstance(d, dict) and d["domain"] == domain) or d == domain:
			print(f"Domain {domain} already exists")
			return

	if ssl_certificate_key and ssl_certificate:
		domain = {
			"domain": domain,
			"ssl_certificate": ssl_certificate,
			"ssl_certificate_key": ssl_certificate_key,
		}

	domains.append(domain)
	update_site_config(site, {"domains": domains}, bench_path=bench_path)


def remove_domain(site, domain, bench_path="."):
	domains = get_domains(site, bench_path)
	for i, d in enumerate(domains):
		if (isinstance(d, dict) and d["domain"] == domain) or d == domain:
			domains.remove(d)
			break

	update_site_config(site, {"domains": domains}, bench_path=bench_path)


def sync_domains(site, domains, bench_path="."):
	"""Checks if there is a change in domains. If yes, updates the domains list."""
	changed = False
	existing_domains = get_domains_dict(get_domains(site, bench_path))
	new_domains = get_domains_dict(domains)

	if set(existing_domains.keys()) != set(new_domains.keys()):
		changed = True

	else:
		for d in list(existing_domains.values()):
			if d != new_domains.get(d["domain"]):
				changed = True
				break

	if changed:
		# replace existing domains with this one
		update_site_config(site, {"domains": domains}, bench_path=".")

	return changed


def get_domains(site, bench_path="."):
	return get_site_config(site, bench_path=bench_path).get("domains") or []


def get_domains_dict(domains):
	domains_dict = defaultdict(dict)
	for d in domains:
		if isinstance(d, str):
			domains_dict[d] = {"domain": d}

		elif isinstance(d, dict):
			domains_dict[d["domain"]] = d

	return domains_dict