import sqlite3
from sqlite3 import Error
import os


class DB:
    def __init__(self, api):
        self.conn = None
        self.api = api
        create_categories = """create table if not exists categories (
                                   id text primary key,
                                   name text not null,
                                   unread_count integer,
                                   timestamp integer,
                                   date text
                               )
                            """
        create_feeds = """create table if not exists feeds (
                              id text primary key,
                              name text not null,
                              unread_count integer,
                              timestamp integer,
                              date text,
                              category_id text,
                              foreign key (category_id) references categories (id)
                          )
                       """
        try:
            self.conn = sqlite3.connect(os.path.expanduser("~") + '/.config/inomnibus/cache.db')
            self.conn.cursor().execute(create_categories)
            self.conn.cursor().execute(create_feeds)

        except Error as e:
            print(e)

    def refresh(self):
        self.api.refresh()
        for item in self.api.unreadCounts.keys():
            if item[0:13] != "user/-/label/":
                continue
            data = self.api.unreadCounts[item]
            cur = self.conn.cursor()
            cur.execute("""insert into categories(id,name,unread_count,timestamp,date) values(:id,:name,:count,:ts,:d)
                        on conflict(id) do update set unread_count = :count, timestamp = :ts, date = :d;
                        """,
                        {"id": item, "name": item[13:], "count": data[0], "ts": data[1], "d": data[2]})
        self.conn.commit()
        for item in self.api.feeds:
            data = self.api.unreadCounts[item["id"]]
            cur.execute("""insert into feeds(id,name,unread_count,timestamp,date,category_id) values(:id,:name,:count,:ts,:d,:c_id)
                        on conflict(id) do update set unread_count = :count, timestamp = :ts, date = :d,category_id = :c_id;
                        """,
                        {"id": item["id"], "name": item["title"], "count": data[0], "ts": data[1], "d": data[2],
                            "c_id": item["categories"][0]["id"]})
        self.conn.commit()