#Alternative to running python (as described below) on your machine, use the docker files.
1. Build docker container with ```docker build -t mrsim:latest .```
2. Run the container ```docker-compose up```
The behavior can be changed by argument to the python script in the docker-compose.yml

The simulator can be queried for statistics (use curl from cmd line or open in browser, curl used below):

`curl localhost:2222/ctr_requests`   - return an integer of the number of get request to the event poll path

`curl localhost:2222/ctr_responses`  - return an integer of the number of get responses to the event poll path

`curl localhost:2222/ctr_unique_files` - returns an integer or the number of unique files. A unique file is the combination of node+file_sequence_number 

`curl localhost:2222/tc_info` - returns the tc string (as given on the cmd line)

`curl localhost:2222/ctr_events` - returns the total number of events

`curl localhost:2222/execution_time` - returns the execution time in mm:ss

`curl localhost:2222/ctr_unique_PNFs` - return the number of unique PNFS in alla events.

##Common TC info
File names for 1MB, 5MB and 50MB files
Files in the format: <size-in-mb>MB_<sequence-number>.tar.gz    Ex. for 5MB file with sequence number 12:  5MB_12.tar.gz
The sequence numbers are stepped so that all files have unique names
Missing files (files that are not expected to be found in the ftp server. Format: MissingFile_<sequence-number>.tar.gz

Limited event streams
When the number of events are exhausted, empty replies are returned '[]'

TC100 - One ME, SFTP, 1 1MB file, 1 event

TC101 - One ME, SFTP, 1 5MB file, 1 event

TC102 - One ME, SFTP, 1 50MB file, 1 event

TC110 - One ME, SFTP, 1MB files, 1 file per event, 100 events, 1 event per poll.

TC111 - One ME, SFTP, 1MB files, 100 files per event, 100 events, 1 event per poll.

TC112 - One ME, SFTP, 5MB files, 100 files per event, 100 events, 1 event per poll.

TC113 - One ME, SFTP, 1MB files, 100 files per event, 100 events. All events in one poll.


TC120 - One ME, SFTP, 1MB files, 100 files per event, 100 events, 1 event per poll. 10% of replies each: no response, empty message, slow response, 404-error, malformed json

TC121 - One ME, SFTP, 1MB files, 100 files per event, 100 events, 1 event per poll. 10% missing files

TC122 - One ME, SFTP, 1MB files, 100 files per event, 100 events. 1 event per poll. All files with identical name. 

TC510 - 700 MEs, SFTP, 1MB files, 1 file per event, 3500 events, 700 event per poll.

TC200-TC202 same as TC100-TC102 but with FTPS

TC210-TC213 same as TC110-TC113 but with FTPS

TC2000-TC2001 same as TC1000-TC1001 but with FTPS

TC610 same as TC510 but with FTPS


Endless event streams

TC1000 - One ME, SFTP, 1MB files, 100 files per event, endless number of events, 1 event per poll

TC1001 - One ME, SFTP, 5MB files, 100 files per event, endless number of events, 1 event per poll


## Developer workflow

1. ```sudo apt install python3-venv```
2. ```source .env/bin/activate/```
3. ```pip3 install "anypackage"```      #also include in source code
4. ```pip3 freeze | grep -v "pkg-resources" > requirements.txt```   #to create a req file
5. ```FLASK_APP=mr-sim.py flask run```

    or

   ```python3 mr-sim.py ```

6. Check/lint/format the code before commit/amed by ```autopep8 --in-place --aggressive --aggressive mr-sim.py```


## User workflow on *NIX


When cloning/fetching from the repository first time:
1. `git clone`
2. `cd "..." ` 		#navigate to this folder
3. `source setup.sh `	#setting up virtualenv and install requirements

    you'll get a sourced virtualenv shell here, check prompt
4. `(env) $ python3 mr-sim.py --help`

    alternatively

    `(env) $ python3 mr-sim.py --tc1`

Every time you run the script, you'll need to step into the virtualenv by following step 3 first.

## User workflow on Windows

When cloning/fetching from the repository first time:

1. 'git clone'
2. then step into the folder
3. 'pip3 install virtualenv'
4. 'pip3 install virtualenvwrapper-win'
5. 'mkvirtualenv env'
6. 'workon env'
7. 'pip3 install -r requirements.txt'   #this will install in the local environment then
8. 'python3 dfc-sim.py'

Every time you run the script, you'll need to step into the virtualenv by step 2+6.