import sys
from pprint import pprint

import mongoengine
import pymongo
from django.conf import settings
from mongoengine.queryset import OperationError

from apps.analyzer.models import (
    MClassifierAuthor,
    MClassifierFeed,
    MClassifierTag,
    MClassifierTitle,
)
from apps.reader.models import MUserStory
from apps.rss_feeds.models import Feed, FeedIcon, MFeedIcon, MFeedPage, MStory
from utils import json_functions as json

MONGO_DB = settings.MONGO_DB
db = mongoengine.connect(MONGO_DB["NAME"], host=MONGO_DB["HOST"], port=MONGO_DB["PORT"])


def bootstrap_stories():
    print("Mongo DB stories: %s" % MStory.objects().count())
    # db.stories.drop()
    print("Dropped! Mongo DB stories: %s" % MStory.objects().count())

    print("Stories: %s" % Story.objects.all().count())
    pprint(db.stories.index_information())

    feeds = Feed.objects.all().order_by("-average_stories_per_month")
    feed_count = feeds.count()
    i = 0
    for feed in feeds:
        i += 1
        print("%s/%s: %s (%s stories)" % (i, feed_count, feed, Story.objects.filter(story_feed=feed).count()))
        sys.stdout.flush()

        stories = list(Story.objects.filter(story_feed=feed).values())
        for story in stories:
            # story['story_tags'] = [tag.name for tag in Tag.objects.filter(story=story['id'])]
            try:
                story["story_tags"] = json.decode(story["story_tags"])
            except:
                continue
            del story["id"]
            del story["story_author_id"]
            try:
                MStory(**story).save()
            except:
                continue

    print("\nMongo DB stories: %s" % MStory.objects().count())


def bootstrap_userstories():
    print("Mongo DB userstories: %s" % MUserStory.objects().count())
    # db.userstories.drop()
    print("Dropped! Mongo DB userstories: %s" % MUserStory.objects().count())

    print("UserStories: %s" % UserStory.objects.all().count())
    pprint(db.userstories.index_information())

    userstories = list(UserStory.objects.all().values())
    for userstory in userstories:
        try:
            story = Story.objects.get(pk=userstory["story_id"])
        except Story.DoesNotExist:
            continue
        try:
            userstory["story"] = MStory.objects(
                story_feed_id=story.story_feed.pk, story_guid=story.story_guid
            )[0]
        except:
            print("!")
            continue
        print(".")
        del userstory["id"]
        del userstory["opinion"]
        del userstory["story_id"]
        try:
            MUserStory(**userstory).save()
        except:
            print("\n\n!\n\n")
            continue

    print("\nMongo DB userstories: %s" % MUserStory.objects().count())


def bootstrap_classifiers():
    for sql_classifier, mongo_classifier in (
        (ClassifierTitle, MClassifierTitle),
        (ClassifierAuthor, MClassifierAuthor),
        (ClassifierFeed, MClassifierFeed),
        (ClassifierTag, MClassifierTag),
    ):
        collection = mongo_classifier.meta["collection"]
        print("Mongo DB classifiers: %s - %s" % (collection, mongo_classifier.objects().count()))
        # db[collection].drop()
        print("Dropped! Mongo DB classifiers: %s - %s" % (collection, mongo_classifier.objects().count()))

        print("%s: %s" % (sql_classifier._meta.object_name, sql_classifier.objects.all().count()))
        pprint(db[collection].index_information())

        for userclassifier in list(sql_classifier.objects.all().values()):
            del userclassifier["id"]
            if sql_classifier._meta.object_name == "ClassifierAuthor":
                author = StoryAuthor.objects.get(pk=userclassifier["author_id"])
                userclassifier["author"] = author.author_name
                del userclassifier["author_id"]
            if sql_classifier._meta.object_name == "ClassifierTag":
                tag = Tag.objects.get(pk=userclassifier["tag_id"])
                userclassifier["tag"] = tag.name
                del userclassifier["tag_id"]
            print(".")
            try:
                mongo_classifier(**userclassifier).save()
            except:
                print("\n\n!\n\n")
                continue

        print("\nMongo DB classifiers: %s - %s" % (collection, mongo_classifier.objects().count()))


def bootstrap_feedpages():
    print("Mongo DB feed_pages: %s" % MFeedPage.objects().count())
    # db.feed_pages.drop()
    print("Dropped! Mongo DB feed_pages: %s" % MFeedPage.objects().count())

    print("FeedPages: %s" % FeedPage.objects.count())
    pprint(db.feed_pages.index_information())

    feeds = Feed.objects.all().order_by("-average_stories_per_month")
    feed_count = feeds.count()
    i = 0
    for feed in feeds:
        i += 1
        print(
            "%s/%s: %s"
            % (
                i,
                feed_count,
                feed,
            )
        )
        sys.stdout.flush()

        if not MFeedPage.objects(feed_id=feed.pk):
            feed_page = list(FeedPage.objects.filter(feed=feed).values())
            if feed_page:
                del feed_page[0]["id"]
                feed_page[0]["feed_id"] = feed.pk
                try:
                    MFeedPage(**feed_page[0]).save()
                except:
                    print("\n\n!\n\n")
                    continue

    print("\nMongo DB feed_pages: %s" % MFeedPage.objects().count())


def bootstrap_feedicons():
    print("Mongo DB feed_icons: %s" % MFeedIcon.objects().count())
    db.feed_icons.drop()
    print("Dropped! Mongo DB feed_icons: %s" % MFeedIcon.objects().count())

    print("FeedIcons: %s" % FeedIcon.objects.count())
    pprint(db.feed_icons.index_information())

    feeds = Feed.objects.all().order_by("-average_stories_per_month")
    feed_count = feeds.count()
    i = 0
    for feed in feeds:
        i += 1
        print(
            "%s/%s: %s"
            % (
                i,
                feed_count,
                feed,
            )
        )
        sys.stdout.flush()

        if not MFeedIcon.objects(feed_id=feed.pk):
            feed_icon = list(FeedIcon.objects.filter(feed=feed).values())
            if feed_icon:
                try:
                    MFeedIcon(**feed_icon[0]).save()
                except:
                    print("\n\n!\n\n")
                    continue

    print("\nMongo DB feed_icons: %s" % MFeedIcon.objects().count())


def compress_stories():
    count = MStory.objects().count()
    print("Mongo DB stories: %s" % count)
    p = 0.0
    i = 0

    feeds = Feed.objects.all().order_by("-average_stories_per_month")
    feed_count = feeds.count()
    f = 0
    for feed in feeds:
        f += 1
        print(
            "%s/%s: %s"
            % (
                f,
                feed_count,
                feed,
            )
        )
        sys.stdout.flush()

        for story in MStory.objects(story_feed_id=feed.pk):
            i += 1.0
            if round(i / count * 100) != p:
                p = round(i / count * 100)
                print("%s%%" % p)
            story.save()


def reindex_stories():
    db = pymongo.Connection().newsblur
    count = MStory.objects().count()
    print("Mongo DB stories: %s" % count)
    p = 0.0
    i = 0

    feeds = Feed.objects.all().order_by("-average_stories_per_month")
    feed_count = feeds.count()
    f = 0
    for feed in feeds:
        f += 1
        print(
            "%s/%s: %s"
            % (
                f,
                feed_count,
                feed,
            )
        )
        sys.stdout.flush()
        for story in MStory.objects(story_feed_id=feed.pk):
            i += 1.0
            if round(i / count * 100) != p:
                p = round(i / count * 100)
                print("%s%%" % p)
            if isinstance(story.id, str):
                story.story_guid = story.id
                story.id = pymongo.objectid.ObjectId()
                try:
                    story.save()
                except OperationError as e:
                    print(" ***> OperationError: %s" % e)
                except e:
                    print(" ***> Unknown Error: %s" % e)
                db.stories.remove({"_id": story.story_guid})


if __name__ == "__main__":
    # bootstrap_stories()
    # bootstrap_userstories()
    # bootstrap_classifiers()
    # bootstrap_feedpages()
    # compress_stories()
    # reindex_stories()
    bootstrap_feedicons()