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#!/usr/bin/env python

#
# Analysis train and pulse IDs
#
# Copyright (c) 2017 Deutsches Elektronen-Synchrotron DESY,
#                    a research centre of the Helmholtz Association.
#
# Author:
#    2017 Thomas White <taw@physics.org>
#

import sys
from collections import deque

f = open(sys.argv[1], 'r')
n_crystals = 0
n_frames = 0
crystal = deque()
in_crystal = 0
trainID = 0
pulseID = 0
trains = dict()
while True:

    fline = f.readline()
    if not fline:
        break

    fline = fline.rstrip("\r\n")

    if fline.find("Image filename") != -1:
        filename = fline.split(": ")[1]

    if fline.find("Event") != -1:
        event = fline.split(": ")[1]

    if fline.find("End chunk") != -1:
        if n_crystals > 0:
            if trainID not in trains:
                trains[trainID] = []
            frame = dict()
            frame['filename'] = filename+" "+event
            frame['ncrystals'] = n_crystals
            frame['crystals'] = deque(crystal)
            frame['pulseID'] = pulseID
            trains[trainID].append(frame)

    if fline.find("Begin chunk") != -1:
        n_crystals = 0
        filename = ""
        event = ""
        pulseID = ""
        trainID = ""
        crystal.clear()

    if fline.find("Begin crystal") != -1:
        n_crystals += 1

    if fline.find("Cell param") != -1:
        in_crystal = 1

    if fline.find("hdf5/instrument/trainID") != -1:
        trainID = fline.split(" = ")[1]

    if fline.find("hdf5/instrument/pulseID") != -1:
        pulseID = fline.split(" = ")[1]

    if in_crystal:
        crystal.append(fline)

    if fline.find("unique_axis") != -1:
        in_crystal = 0

for trainID in trains:
    print("Train: "+trainID)
    print("There are "+str(len(trains[trainID]))+" indexed frames in this train")
    if len(trains[trainID]) > 1:
        for frame in trains[trainID]:
            print("\nFrame: "+frame['filename'])
            print("Pulse: "+frame['pulseID'])
            print("There are "+str(frame['ncrystals'])+" crystals in this frame")
            for line in frame['crystals']:
                print(line)
        print("\n")
    print("\n")