from db import dbGetMany, dbGetOne
from loguru import logger
import datetime
import iso8601
from utils import getParam
from Cheetah.Template import Template

def perform(dbh, params):
    year = getParam(params, 'year', datetime.datetime.today().year)

    accountEntries = dbGetMany(
        dbh, 
        { 
            "statement": "SELECT * FROM account_statement_v WHERE fiscal_year = %(year)s", 
            "params": {
                'year': year
            }
        }
    )

    overview = dbGetMany(
        dbh, 
        { 
            "statement": "select sum(amount), category from account_statement_v where fiscal_year = %(year)s group by category", 
            "params": {
                'year': year
            }
        }
    )

    sum_related = dbGetOne(
        dbh, 
        { 
            "statement": "select coalesce(sum(amount), 0::numeric(10,2)) as sum from account_statement_v where fiscal_year = %(year)s and category != 'nicht abrechenbare Positionen'", 
            "params": {
                'year': year
            }
        }
    )

    sum_unrelated = dbGetOne(
        dbh, 
        { 
            "statement": "select coalesce(sum(amount), 0::numeric(10,2)) as sum from account_statement_v where fiscal_year = %(year)s and category = 'nicht abrechenbare Positionen'", 
            "params": {
                'year': year
            }
        }
    )

    template = getParam(params, 'template', 'accountStatement.tmpl')
    input = { 'year': year, 'entries': accountEntries, 'overview': overview, 'related': sum_related, 'unrelated': sum_unrelated }
    tmpl = Template(file=template, searchList=[ input ])
    print(tmpl)