# -*- coding: UTF-8 -*-
import subprocess
import traffic_replay
from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route('/v1/traffic', methods=["POST"])
def run_traffic_env():
    try:
        print("Receive messages from api client.")
        json_data = request.get_json()
        type = json_data.get("type")
        if type == "curl":
            print("Execute curl operation.")
            command = json_data.get("command")
            p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, encoding="utf-8")
            output, error = p.communicate()
            cmd_result = output + error
        elif type == "trex":
            print("Execute trex operation.")
            pcap_name = json_data.get("pcap_name") + ".pcap"
            yaml_name = json_data.get("yaml_name") + ".yaml"
            m = json_data.get("m")
            d = json_data.get("d")
            clients_start_ip = json_data.get("clients_start_ip")
            clients_end_ip = json_data.get("clients_end_ip")
            servers_start_ip = json_data.get("servers_start_ip")
            servers_end_ip = json_data.get("servers_end_ip")
            path_dict = {
                "trex_workpath": "/opt/trex/v3.04",
                "traffic_playback_workpath": "/opt/traffic_replay"
            }
            tr = traffic_replay.TrafficReplay(path_dict)
            tr.trex_playback(yaml_name, pcap_name, m, d, clients_start_ip, clients_end_ip, servers_start_ip, servers_end_ip)
            cmd_result = "reset"
        response_result = {}
        response_result["code"] = 200
        response_result["result"] = cmd_result
        response = jsonify(response_result)
        response.status_code = response_result["code"]
        return response
    except Exception as e:
        print(e)
        response_result = {}
        response_result["code"] = 418
        response_result["result"] = ""
        response = jsonify(response_result)
        response.status_code = response_result["code"]
        return response

if __name__ == '__main__':
    app.run(host = "0.0.0.0", port = 8900)