#coding:utf-8

"""
ID:          trigger.database.disconnect
TITLE:       Trigger on database disconnect: check that exception that raised when trigger fires is written to firebird.log
DESCRIPTION:
  Discussed with Alex, 16.12.2020 functionality that was not specified in the documentation:
      exception that raises in a trigger on DISCONNECT reflects in the firebird.log.

      Test creates trigger on disconnect and put in its body statement which always will fail: 1/0.
      Then we get content of firebird.log before disconnect and after.
      Finally we compare these logs and search in the difference lines about error message.
FBTEST:      functional.trigger.database.disconnect_01
"""

import pytest
from firebird.qa import *

init_script = """
    set term ^;
    create trigger trg_disconnect on disconnect as
        declare n int;
    begin
        n = 1/0;
    end
    ^
    set term ;^
    commit;

"""

db = db_factory(init=init_script)

act = python_act('db', substitutions=[('[ \t]+', ' ')])

expected_stdout = """
    + Error at disconnect:
    + arithmetic exception, numeric overflow, or string truncation
    + Integer divide by zero.  The code attempted to divide an integer value by an integer divisor of zero.
    + At trigger 'TRG_DISCONNECT' line: 4, col: 9
"""

@pytest.mark.skip('FIXME: Not IMPLEMENTED')
@pytest.mark.version('>=4.0')
def test_1(act: Action):
    pytest.fail("Not IMPLEMENTED")

# Original python code for this test:
# -----------------------------------
#
# import os
# import subprocess
# import difflib
# import re
# import time
#
# #--------------------------------------------
#
# def flush_and_close( file_handle ):
#     # https://docs.python.org/2/library/os.html#os.fsync
#     # If you're starting with a Python file object f,
#     # first do f.flush(), and
#     # then do os.fsync(f.fileno()), to ensure that all internal buffers associated with f are written to disk.
#     global os
#
#     file_handle.flush()
#     if file_handle.mode not in ('r', 'rb') and file_handle.name != os.devnull:
#         # otherwise: "OSError: [Errno 9] Bad file descriptor"!
#         os.fsync(file_handle.fileno())
#     file_handle.close()
#
# #--------------------------------------------
#
# def cleanup( f_names_list ):
#     global os
#     for f in f_names_list:
#        if type(f) == file:
#           del_name = f.name
#        elif type(f) == str:
#           del_name = f
#        else:
#           print('Unrecognized type of element:', f, ' - can not be treated as file.')
#           del_name = None
#
#        if del_name and os.path.isfile( del_name ):
#            os.remove( del_name )
#
# #--------------------------------------------
#
# def svc_get_fb_log( fb_home, f_fb_log ):
#
#   global subprocess
#   subprocess.call( [ context['fbsvcmgr_path'],
#                      "localhost:service_mgr",
#                      "action_get_fb_log"
#                    ],
#                    stdout=f_fb_log, stderr=subprocess.STDOUT
#                  )
#   return
#
# #--------------------------------------------
#
# os.environ["ISC_USER"] = user_name
# os.environ["ISC_PASSWORD"] = user_password
#
# f_init_log = open( os.path.join(context['temp_directory'],'tmp_fb_old.log'), 'w')
# subprocess.call( [ context['fbsvcmgr_path'],"localhost:service_mgr",  "action_get_fb_log" ], stdout = f_init_log, stderr = subprocess.STDOUT)
# flush_and_close( f_init_log )
#
# db_conn.close() # this leads to zero divide error in trg_disconnect which must be reflected in the firebird.log
#
# time.sleep(1)
#
# f_curr_log = open( os.path.join(context['temp_directory'],'tmp_fb_new.log'), 'w')
# subprocess.call( [ context['fbsvcmgr_path'],"localhost:service_mgr",  "action_get_fb_log" ], stdout = f_curr_log, stderr = subprocess.STDOUT)
# flush_and_close( f_curr_log )
#
# f_init_log=open(f_init_log.name, 'r')
# f_curr_log=open(f_curr_log.name, 'r')
# difftext = ''.join(difflib.unified_diff(
#     f_init_log.readlines(),
#     f_curr_log.readlines()
#   ))
# flush_and_close( f_init_log )
# flush_and_close( f_curr_log )
#
# f_diff_txt=open( os.path.join(context['temp_directory'],'tmp_fb_diff.txt'), 'w')
# f_diff_txt.write(difftext)
# flush_and_close( f_diff_txt )
#
# p = re.compile('\\+\\s?((Error at disconnect)|(arithmetic exception)|(Integer divide by zero)|(At trigger))')
# with open( f_diff_txt.name,'r') as f:
#     for line in f:
#         if line.startswith('+') and line.strip() != '+++' and p.search(line):
#             print( line )
#             # print( 'DIFF in firebird.log: %(line)s' % locals() )
#
# ###############################
# # Cleanup.
# time.sleep(1)
# cleanup( (f_init_log,f_curr_log,f_diff_txt) )
#
# -----------------------------------