# this file is only used for continuous evaluation test!

import os
import sys
sys.path.append(os.environ['ceroot'])
from kpi import CostKpi
from kpi import DurationKpi

imikolov_20_avg_ppl_kpi = CostKpi('lstm_language_model_loss', 0.02, 0)
imikolov_20_pass_duration_kpi = DurationKpi(
    'lstm_language_model_duration', 0.02, 0, actived=True)

tracking_kpis = [
    imikolov_20_avg_ppl_kpi,
    imikolov_20_pass_duration_kpi,
]


def parse_log(log):
    '''
    This method should be implemented by model developers.

    The suggestion:

    each line in the log should be key, value, for example:

    "
    train_cost\t1.0
    test_cost\t1.0
    train_cost\t1.0
    train_cost\t1.0
    train_acc\t1.2
    "
    '''
    for line in log.split('\n'):
        fs = line.strip().split('\t')
        print(fs)
        kpi_name = fs[0]
        kpi_value = float(fs[1])
        yield kpi_name, kpi_value


def log_to_ce(log):
    kpi_tracker = {}
    for kpi in tracking_kpis:
        kpi_tracker[kpi.name] = kpi

    for (kpi_name, kpi_value) in parse_log(log):
        print(kpi_name, kpi_value)
        kpi_tracker[kpi_name].add_record(kpi_value)
        kpi_tracker[kpi_name].persist()


if __name__ == '__main__':
    log = sys.stdin.read()
    log_to_ce(log)