#!/usr/bin/python3

import sqlite3
from flask import Flask, request, render_template
from flask import g
from flask_paginate import Pagination, get_page_parameter


DATABASE = "../data/diffs.db"

app = Flask(__name__)




def get_db():
    db = getattr(g, '_database', None)
    if db is None:
        db = g._database = sqlite3.connect(DATABASE)
    db.row_factory = sqlite3.Row
    return db

@app.teardown_appcontext
def close_connection(exception):
    db = getattr(g, '_database', None)
    if db is not None:
        db.close()



@app.route('/')
def index():
    db = get_db().cursor()
    db.execute('SELECT count(diff_id) FROM diffs')
    diff_count = db.fetchall()[0][0]


    #flask-paginate
    page = request.args.get(get_page_parameter(), type=int, default=1)

    pagination = Pagination(page=page, total=diff_count, record_name='diffs')
    
    
    page_skip = pagination.skip
    per_page = pagination.per_page
    db.execute("SELECT * FROM diffs ORDER BY diff_id DESC LIMIT ? OFFSET ?", (per_page,page_skip))
    diffs = db.fetchall()

    return render_template('./index.html',
                           diffs=diffs,
                           pagination=pagination,
                           )


if __name__ == "__main__":
    app.run(host="0.0.0.0")