from flask import Flask
from flask import request
from lxml import etree
import json
import time
import Parser


app = Flask(__name__)

@app.route("/xpath", methods=["POST"])
def xpath():
    start = time.time_ns()
    request_data = json.loads(request.get_data(as_text=True))
    xml = request_data['data']
    xpath = request_data['process']
    
    response = dict()
    try:
        response['result'] = Parser.xpath(xml, xpath)
        response['status'] = "OK"
    except BaseException as e:
        response['result'] = str(e)
        response['status'] = "ERR"
    finally:
        exec_time = (time.time_ns() - start) / 10**6
        response['time'] = f"{exec_time:.03f}"
        response['processor'] = "libxml2 over lxml"
        return json.dumps(response)

@app.route("/xsd", methods=["POST"])
def xsd():
    start = time.time_ns()
    request_data = json.loads(request.get_data(as_text=True))
    xml = request_data['data']
    xsd = request_data['process']

    response = dict()
    try:
        response['result'] = Parser.xsd(xml, xsd)
        response['status'] = "OK"
    except BaseException as e:
        response['result'] = str(e)
        response['status'] = "ERR"
    finally:
        exec_time = (time.time_ns() - start) / 10**6
        response['time'] = f"{exec_time:.03f}"
        response['processor'] = "libxml2 over lxml"
        return json.dumps(response)

@app.route("/xslt", methods=["POST"])
def xslt():
    start = time.time_ns()
    request_data = request.get_json()
    xml = request_data['data']
    xslt = request_data['process']

    response = dict()
    try:
        response['result'] = Parser.xslt(xml, xslt)
        response['status'] = "OK"
    except BaseException as e:
        response['result'] = str(e)
        response['status'] = "ERR"
    finally:
        exec_time = (time.time_ns() - start) / 10**6
        response['time'] = f"{exec_time:.03f}"
        response['processor'] = "libxml2 over lxml"
        return json.dumps(response)