from http.server import BaseHTTPRequestHandler, HTTPServer
from urllib.parse import urlparse
import igmirror
import json
import sys
import os
import re

class MyServer(BaseHTTPRequestHandler):
    def do_GET(self):
        _ = urlparse(self.path)
        qs = _.query
        path = _.path.strip().strip('/')
        parts = path.split('/')

        if len(parts) == 1:
            response(self, 200, 'html')
            action = parts[0].lower()

            if False:
                pass

            # list accounts (plain text)
            elif action ==		'list':
                accounts = os.listdir('./db/accounts')
                for acc in sorted(set(accounts)):
                    echo(self, acc)
                return 0

            # lists accounts on a pretty HTML + CSS
            #  making sure there is no XSS possible on account names
            elif action ==		'mirrors':
                html = igmirror.pixelfed_htmlfill_mirrors( igmirror.template('mirrors') )
                return echo(self, html)

            return echo(self, {'status': 'error', 'message': '1st parameter action not defined: {}'.format(action)})

        if len(parts) == 2:
            response(self, 200, 'json')
            acc_id = parts[0]
            action = parts[1].lower()

            if acc_id == '*':
                if False:
                    pass

                elif action ==		'update':
                    igmirror.update_allaccounts_async()
                    return echo(self, {'status': 'ok', 'message': 'All accounts update asyncronous started!'})

                elif action ==		'login':
                    igmirror.pixelfed_loginall_async()
                    return echo(self, {'status': 'ok', 'message': 'All accounts login asyncronous started!'})

                elif action ==		'logout':
                    igmirror.pixelfed_logoutall_async()
                    return echo(self, {'status': 'ok', 'message': 'All accounts logout asyncronous started!'})

            else:
                # make sure account name contains only safe characters
                #  i think IG usernames can only have this characters:
                if False:
                    pass

                elif action ==		'add':
                    igmirror.add_igaccount(acc_id)
                    return echo(self, {'status': 'ok', 'message': 'New mirror account added to Pixelfed!'})

                elif action ==		'update':
                    igmirror.update_igaccount_async(acc_id)
                    return echo(self, {'status': 'ok', 'message': 'Account update process started asyncronously'})

                elif action ==		'login':
                    igmirror.pixelfed_login(acc_id, True)
                    return echo(self, {'status': 'ok', 'message': 'Account logged in to Pixelfed'})

                elif action ==		'logout':
                    igmirror.pixelfed_logout(acc_id)
                    return echo(self, {'status': 'ok', 'message': 'Account logged out of Pixelfed'})

                elif action ==		'nuke':
                    igmirror.delete_statuses(acc_id)
                    return echo(self, {'status': 'ok', 'message': 'Account nuked successfully'})

            return echo(self, {'status': 'error', 'message': '2nd parameter action not configured: {}'.format(action)})

        if len(parts) == 3:
            response(self, 200, 'json')
            acc_id = parts[0]
            action = parts[1].lower()
            key    = parts[2].lower()

            if False:
                pass

            elif action ==		'cfg':
                status, message = igmirror.account_config(acc_id, key, qs)
                status = 'ok' if status else 'error'
                return echo(self, {'status': status, 'message': message})

            return echo(self, {'status': 'error', 'message': '2nd parameter action not configured: {}'.format(arg2)})

        response(self, 400, 'json')
        return echo(self, {'status': 'error', 'message': 'Parameters are not correct. Check out the API documentation'})

def response(obj, code, typ):
    obj.send_response(code)
    typ = typ.lower().strip()
    if typ == 'html':
        obj.send_header('Content-Type', 'text/html')
    elif typ == 'json':
        obj.send_header('Content-Type', 'application/json')
    obj.end_headers()

def echo(obj, what, newline=True):
    if type(what) is dict or type(what) is list:
        what = json.dumps(what)
    if newline:
        what = what + '\n'
    obj.wfile.write(bytes(what, "utf-8"))

if __name__ == "__main__": 
    addr = '0.0.0.0'
    port = 8080

    if len(sys.argv) > 1:
        arg = sys.argv[1].strip()
        if ':' in arg:
            ps = arg.split(':')
            addr = ps[0]
            port = int(ps[1])
        else:
            port = int(arg)

    webServer = HTTPServer((addr, port), MyServer)
    print("Server started http://%s:%s" % (addr, port))

    try:
        webServer.serve_forever()
    except KeyboardInterrupt:
        pass

    webServer.server_close()
    print("Server stopped.")