#!/usr/bin/env python
# coding=utf-8

import argparse
import datetime
import json
import os.path
import re
import sys
import uuid  # @UnresolvedImport
import csv
from dateutil.parser import parse

import requests

import dateutil.tz
from iri_tweet.utils import get_logger, set_logging, set_logging_options
from lxml import etree

LDT_CONTENT_REST_API_PATH = "api/ldt/1.0/contents/"
LDT_PROJECT_REST_API_PATH = "api/ldt/1.0/projects/"

def get_options():

    parser = argparse.ArgumentParser(description="All date should be given using iso8601 format.")

    parser.add_argument("-f", "--file", dest="filename",
                      help="write export to file", metavar="FILE", default="project.ldt")
    parser.add_argument("-d", "--csv-file", dest="csv_file",
                      help="Input chap file", metavar="CSV_FILE")
    parser.add_argument("-I", "--content-file", dest="content_file",
                      help="Content file", metavar="CONTENT_FILE")
    parser.add_argument("-c", "--content", dest="content",
                      help="Content url", metavar="CONTENT")
    parser.add_argument("-V", "--video-url", dest="video",
                      help="video url", metavar="VIDEO")
    parser.add_argument("-i", "--content-id", dest="content_id",
                      help="Content id", metavar="CONTENT_ID")
    parser.add_argument("-C", "--color", dest="color",
                      help="Color code", metavar="COLOR", default="16763904")
    parser.add_argument("-n", "--name", dest="name",
                      help="Cutting name", metavar="NAME", default="chap")
    parser.add_argument("-R", "--replace", dest="replace", action="store_true",
                      help="Replace ensemble", default=False)
    parser.add_argument("-m", "--merge", dest="merge", action="store_true",
                      help="merge ensemble, choose the first ensemble", default=False)
    parser.add_argument("-b", "--base-url", dest="base_url",
                      help="base URL of the platform", metavar="BASE_URL", default="http://ldt.iri.centrepompidou.fr/ldtplatform/")
    parser.add_argument("-p", "--project", dest="project_id",
                      help="Project id", metavar="PROJECT_ID", default=None)
    parser.add_argument("-P", "--post-param", dest="post_param",
                      help="Post param", metavar="POST_PARAM", default=None)

    set_logging_options(parser)

    return (parser.parse_args(), parser)


if __name__ == "__main__" :

    (options, parser) = get_options()

    set_logging(options)

    get_logger().debug("OPTIONS : " + repr(options)) #@UndefinedVariable


    if len(sys.argv) == 1 or options.csv_file is None or not options.csv_file.strip():
        parser.print_help()
        sys.exit(1)

    if options.project_id:
        content_file = options.base_url + LDT_PROJECT_REST_API_PATH + options.project_id + "/?format=json"
    else:
        content_file = options.content_file
    parameters = [{
        # 'start_date': options.start_date,
        # 'end_date' : options.end_date,
        # 'duration' : options.duration,
        'content_file' : content_file,
        'content_file_write' : content_file,
        # 'hashtags' : options.hashtag,
        'project_id' : options.project_id
    }]
    post_param = {}
    if options.post_param:
        post_param = json.loads(options.post_param)

    display_content_node = None
    for params in parameters:

        get_logger().debug("PARAMETERS " + repr(params)) #@UndefinedVariable

        content_file = params.get("content_file", None)
        content_file_write = params.get("content_file_write", None)

        root = None
        ensemble_parent = None
        project = None

        #to do : analyse situation ldt or iri ? filename set or not ?

        if content_file and content_file.find("http") == 0:

            get_logger().debug("url : " + content_file) #@UndefinedVariable

            r = requests.get(content_file, params=post_param)
            get_logger().debug("url response " + repr(r) + " content " + repr(r.text)) #@UndefinedVariable
            project = r.json()
            text_match = re.match(r"\<\?\s*xml.*?\?\>(.*)", project['ldt'], re.I|re.S)
            root = etree.fromstring(text_match.group(1) if text_match else project['ldt'])

        elif content_file and os.path.exists(content_file):

            doc = etree.parse(content_file)
            root = doc.getroot()
            for child in root:
                if child.tag == "project":
                    project = child
                    break
            if project is None:
                root = None

        content_id = None

        if root is None:

            root = etree.Element("iri")

            project = etree.SubElement(root, "project", {"abstract":"Chapitrage","title":"Chapitrage", "user":"IRI Web", "id":str(uuid.uuid4())})

            medias = etree.SubElement(root, "medias")
            media = etree.SubElement(medias, "media", {"pict":"", "src":options.content, "video":options.video, "id":options.content_id, "extra":""})

            annotations = etree.SubElement(root, "annotations")
            content = etree.SubElement(annotations, "content", {"id":options.content_id})
            ensemble_parent = content

            content_id = options.content_id


        if ensemble_parent is None:
            file_type = None
            for node in root:
                if node.tag == "project":
                    file_type = "ldt"
                    break
                elif node.tag == "head":
                    file_type = "iri"
                    break

            if file_type == "ldt":
                media_nodes = root.xpath("//media")
                media = None
                if len(media_nodes) > 0:
                    media = media_nodes[0]
                annotations_node = root.find("annotations")
                if annotations_node is None:
                    annotations_node = etree.SubElement(root, "annotations")
                content_node = annotations_node.find("content")
                if content_node is None and media is not None:
                    content_node = etree.SubElement(annotations_node,"content", id=media.get("id"))
                ensemble_parent = content_node
                content_id = content_node.get("id")
                display_nodes = root.xpath("//displays/display/content[@id='%s']" % content_id)
                if len(display_nodes) == 0:
                    get_logger().info("No display node found. Will not update display")
                    display_content_node = None
                else:
                    display_content_node = display_nodes[0]

            elif file_type == "iri":
                body_node = root.find("body")
                if body_node is None:
                    body_node = etree.SubElement(root, "body")
                ensembles_node = body_node.find("ensembles")
                if ensembles_node is None:
                    ensembles_node = etree.SubElement(body_node, "ensembles")
                ensemble_parent = ensembles_node
                content_id = root.xpath("head/meta[@name='id']/@content")[0]
                display_content_node = None


        if ensemble_parent is None:
            get_logger().error("Can not process file") #@UndefinedVariable
            sys.exit()

        if options.replace:
            for ens in ensemble_parent.iterchildren(tag="ensemble"):
                ens_id = ens.get("id","")
                if ens_id.startswith("chap_"):
                    ensemble_parent.remove(ens)
                    # remove in display nodes
                    if display_content_node is not None:
                        for cut_display in display_content_node.iterchildren():
                            if cut_display.get('idens','') == ens_id:
                                display_content_node.remove(cut_display)

        ensemble = None
        elements = None
        decoupage = None

        if options.merge:
            for ens in ensemble_parent.findall("ensemble"):
                if ens.get('id',"").startswith("chap_"):
                    ensemble = ens
                    break
            if ensemble is not None:
                elements = ensemble.find(".//elements")
                decoupage = ensemble.find("decoupage")

        if ensemble is None or elements is None:
            ensemble = etree.SubElement(ensemble_parent, "ensemble", {"id":"chap_" + str(uuid.uuid4()), "title":"Ensemble Chapitrage", "author":"IRI Web", "abstract":"Ensemble Chapitrage"})
            decoupage = etree.SubElement(ensemble, "decoupage", {"id": str(uuid.uuid4()), "author": "IRI Web"})

            etree.SubElement(decoupage, "title").text = options.name
            etree.SubElement(decoupage, "abstract").text = options.name

            elements = etree.SubElement(decoupage, "elements")

        ensemble_id = ensemble.get('id', '')
        decoupage_id = decoupage.get('id', '') if decoupage is not None else None

        with open(options.csv_file.strip()) as csvfilein:
            chap_reader = csv.DictReader(csvfilein, delimiter=';')
            for i,chap_row in enumerate(chap_reader):

                ts_start = chap_row['START']
                dur = int(chap_row['END'])-int(ts_start)
                username = "IRI"
                color = "%s"%(int(chap_row['COLOR'].strip("#").lower(),16)) if chap_row['COLOR'] else options.color
                title = chap_row['TITLE']
                desc = chap_row['DESCRIPTION']
                tags = chap_row['TAGS']

                element = etree.SubElement(elements, "element" , {"id": "%s-%s" % (uuid.uuid4(),i), "color":color, "author":username, "date":datetime.datetime.now().strftime("%Y/%m/%d"), "begin": ts_start, "dur":str(dur), "src":"manual"})
                etree.SubElement(element, "title").text = title[:255]
                etree.SubElement(element, "abstract").text = desc

                tags_node = etree.SubElement(element, "tags")

                for tag in tags.split(","):
                    etree.SubElement(tags_node,"tag").text = tag.strip()

                meta_element = etree.SubElement(element, 'meta')

                etree.SubElement(meta_element, "source", attrib={"url":"http://www.iri.centrepompidou.fr", "mimetype":"text/plain"}).text = etree.CDATA(json.dumps({'row': chap_row}))

        # sort by tc in
        if options.merge :
            # remove all elements and put them in a array
            # sort them with tc
            #put them back
            elements[:] = sorted(elements,key=lambda n: int(n.get('begin')))

        #add to display node
        if display_content_node is not None:
            display_dec = None
            for dec in display_content_node.iterchildren(tag="decoupage"):
                if dec.get('idens','') == ensemble_id and dec.get('id', '') == decoupage_id:
                    display_dec = dec
                    break
            if display_dec is None and ensemble_id and decoupage_id:
                etree.SubElement(display_content_node, "decoupage", attrib={'idens': ensemble_id, 'id': decoupage_id, 'tagsSelect':''})

        output_data = etree.tostring(root, encoding="utf-8", method="xml", pretty_print=False, xml_declaration=True).decode('utf-8')

        if content_file_write and content_file_write.find("http") == 0:

            project["ldt"] = output_data
            project['owner'] = project['owner'].replace('%7E','~')
            project['contents'] = [c_url.replace('%7E','~') for c_url in project['contents']]

            post_param = {}
            if options.post_param:
                post_param = json.loads(options.post_param)

            get_logger().debug("write http " + content_file_write) #@UndefinedVariable
            get_logger().debug("write http " + repr(post_param)) #@UndefinedVariable
            get_logger().debug("write http " + repr(project)) #@UndefinedVariable
            r = requests.put(content_file_write, data=json.dumps(project), headers={'content-type':'application/json'}, params=post_param)
            get_logger().debug("write http " + repr(r) + " content " + r.text) #@UndefinedVariable
            if r.status_code != requests.codes.ok:  # pylint: disable=E1101
                r.raise_for_status()
        else:
            if content_file_write and os.path.exists(content_file_write):
                dest_file_name = content_file_write
            else:
                dest_file_name = options.filename

            get_logger().debug("WRITE : " + dest_file_name) #@UndefinedVariable
            output = open(dest_file_name, "w")
            output.write(output_data)
            output.flush()
            output.close()