#!/usr/bin/env python3

import cgi, os, json, sys

LOG = "radioimplicancies.log"
MAX_ROWS = 3

method = os.environ.get("REQUEST_METHOD", "GET").upper()

if method == "POST":
    data = json.load(sys.stdin)
    if MAX_ROWS:
        rows = []
        with open(LOG) as f:
            for line in f:
                row = json.loads(line)
                rows.append(row)
        rows = rows[-(MAX_ROWS-1):]
        with open(LOG, "w") as f:
            for row in rows:
                print(json.dumps(row), file=f)
            print (json.dumps(data), file=f)
    else:
        with open(LOG, "a") as f:
            print(json.dumps(data), file=f)
    print ("Content-type: text/html; charset=utf-8")
    print ()
    print ("ok")
    sys.exit(0)


# debugging
# print ("Content-type: text/html; charset=utf-8")
# print ()

out = []
with open(LOG) as f:
    for line in f:
        data = json.loads(line)
        out.append(data)

print ("Content-type: application/json")
print ()
print (json.dumps(out, indent=2))