from http.server import BaseHTTPRequestHandler, HTTPServer
import igmirror
import sys
import re

class MyServer(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-type", "application/json")
        self.end_headers()
        # the account is the first part of the URL
        #  and the action for the account is the last part
        # example: /shakira/add
        path = self.path.strip('/')
        parts = path.split('/')
        if len(parts) == 2:
            # a wilcard select all accounts
            if parts[0] == '*':
                if parts[1].lower() == 'update':
                    igmirror.update_allaccounts_async()
            else:
                # make sure account name contains only safe characters
                #  i think IG usernames can only have this characters:
                accname = re.sub(r'[^a-zA-Z0-9_\.]+', '', parts[0])
                if parts[1].lower() == 'add':
                    igmirror.add_igaccount(accname)
                elif parts[1].lower() == 'update':
                    igmirror.update_igaccount_async(accname)
            self.wfile.write(bytes('{"status": "ok"}', "utf-8"))
        else:
            self.wfile.write(bytes('{"status": "parameters are not correct"}', "utf-8"))

if __name__ == "__main__": 
    port = 8080
    if len(sys.argv) > 1:
        port = int(sys.argv[1])
    webServer = HTTPServer(('0.0.0.0', port), MyServer)
    print("Server started http://%s:%s" % ('0.0.0.0', port))

    try:
        webServer.serve_forever()
    except KeyboardInterrupt:
        pass

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