#!/usr/bin/env python3
# Copyright (C) The Arvados Authors. All rights reserved.
#
# SPDX-License-Identifier: AGPL-3.0

import argparse
import sys

import arvados
import arvados.util
import datetime
import ciso8601

def parse_arguments(arguments):
    arg_parser = argparse.ArgumentParser()
    arg_parser.add_argument('--start', help='Start date for the report in YYYY-MM-DD format')
    arg_parser.add_argument('--end', help='End date for the report in YYYY-MM-DD format')
    arg_parser.add_argument('--days', type=int, help='Number of days before now() to start the report')
    args = arg_parser.parse_args(arguments)

    if args.days and (args.start or args.end):
        p.print_help()
        print("Error: either specify --days or both --start and --end")
        exit(1)

    if not args.days and (not args.start or not args.end):
        p.print_help()
        print("Error: either specify --days or both --start and --end")
        exit(1)

    if (args.start and not args.end) or (args.end and not args.start):
        p.print_help()
        print("Error: no start or end date found, either specify --days or both --start and --end")
        exit(1)

    return args

def getowner(arv, uuid, owners):
    if uuid is None:
        return None
    if uuid[6:11] == "tpzed":
        return uuid

    if uuid not in owners:
        try:
            gp = arv.groups().get(uuid=uuid).execute()
            owners[uuid] = gp["owner_uuid"]
        except:
            owners[uuid] = None

    return getowner(arv, owners[uuid], owners)

def getuserinfo(arv, uuid):
    try:
        u = arv.users().get(uuid=uuid).execute()
    except:
        return "deleted user (%susers/%s)" % (arv.config()["Services"]["Workbench1"]["ExternalURL"],
                                                       uuid)
    prof = "\n".join("  %s: \"%s\"" % (k, v) for k, v in u["prefs"].get("profile", {}).items() if v)
    if prof:
        prof = "\n"+prof+"\n"
    return "%s %s <%s> (%susers/%s)%s" % (u["first_name"], u["last_name"], u["email"],
                                                       arv.config()["Services"]["Workbench1"]["ExternalURL"],
                                                       uuid, prof)

collectionNameCache = {}
def getCollectionName(arv, pdh):
    if pdh not in collectionNameCache:
        u = arv.collections().list(filters=[["portable_data_hash","=",pdh]]).execute().get("items")
        if len(u) < 1:
            return "(deleted)"
        collectionNameCache[pdh] = u[0]["name"]
    return collectionNameCache[pdh]

def getname(u):
    return "\"%s\" (%s)" % (u["name"], u["uuid"])

def main(arguments=None):
    if arguments is None:
        arguments = sys.argv[1:]

    args = parse_arguments(arguments)

    arv = arvados.api()

    if args.days:
        to = datetime.datetime.utcnow()
        since = to - datetime.timedelta(days=args.days)

    if args.start:
        try:
            since = datetime.datetime.strptime(args.start,"%Y-%m-%d")
        except:
            p.print_help()
            print("Error: start date must be in YYYY-MM-DD format")
            exit(1)

    if args.end:
        try:
            to = datetime.datetime.strptime(args.end,"%Y-%m-%d")
        except:
            p.print_help()
            print("Error: end date must be in YYYY-MM-DD format")
            exit(1)

    print("User activity on %s between %s and %s\n" % (arv.config()["ClusterID"],
                                                       since.isoformat(sep=" ", timespec="minutes"),
                                                       to.isoformat(sep=" ", timespec="minutes")))

    events = arvados.util.keyset_list_all(arv.logs().list, filters=[["created_at", ">=", since.isoformat()],["created_at", "<", to.isoformat()]])

    users = {}
    owners = {}

    for e in events:
        owner = getowner(arv, e["object_owner_uuid"], owners)
        users.setdefault(owner, [])
        event_at = ciso8601.parse_datetime(e["event_at"]).astimezone().isoformat(sep=" ", timespec="minutes")
        # loguuid = e["uuid"]
        loguuid = ""

        if e["event_type"] == "create" and e["object_uuid"][6:11] == "tpzed":
            users.setdefault(e["object_uuid"], [])
            users[e["object_uuid"]].append("%s User account created" % event_at)

        elif e["event_type"] == "update" and e["object_uuid"][6:11] == "tpzed":
            pass

        elif e["event_type"] == "create" and e["object_uuid"][6:11] == "xvhdp":
            if e["properties"]["new_attributes"]["requesting_container_uuid"] is None:
                users[owner].append("%s Ran container %s %s" % (event_at, getname(e["properties"]["new_attributes"]), loguuid))

        elif e["event_type"] == "update" and e["object_uuid"][6:11] == "xvhdp":
            pass

        elif e["event_type"] == "create" and e["object_uuid"][6:11] == "j7d0g":
            users[owner].append("%s Created project %s" %  (event_at, getname(e["properties"]["new_attributes"])))

        elif e["event_type"] == "delete" and e["object_uuid"][6:11] == "j7d0g":
            users[owner].append("%s Deleted project %s" % (event_at, getname(e["properties"]["old_attributes"])))

        elif e["event_type"] == "update" and e["object_uuid"][6:11] == "j7d0g":
            users[owner].append("%s Updated project %s" % (event_at, getname(e["properties"]["new_attributes"])))

        elif e["event_type"] in ("create", "update") and e["object_uuid"][6:11] == "gj3su":
            since_last = None
            if len(users[owner]) > 0 and users[owner][-1].endswith("activity"):
                sp = users[owner][-1].split(" ")
                start = sp[0]+" "+sp[1]
                since_last = ciso8601.parse_datetime(event_at) - ciso8601.parse_datetime(sp[3]+" "+sp[4])
                span = ciso8601.parse_datetime(event_at) - ciso8601.parse_datetime(start)

            if since_last is not None and since_last < datetime.timedelta(minutes=61):
                users[owner][-1] = "%s to %s (%02d:%02d) Account activity" % (start, event_at, span.days*24 + int(span.seconds/3600), int((span.seconds % 3600)/60))
            else:
                users[owner].append("%s to %s (0:00) Account activity" % (event_at, event_at))

        elif e["event_type"] == "create" and e["object_uuid"][6:11] == "o0j2j":
            if e["properties"]["new_attributes"]["link_class"] == "tag":
                users[owner].append("%s Tagged %s" % (event_at, e["properties"]["new_attributes"]["head_uuid"]))
            elif e["properties"]["new_attributes"]["link_class"] == "permission":
                users[owner].append("%s Shared %s with %s" % (event_at, e["properties"]["new_attributes"]["tail_uuid"], e["properties"]["new_attributes"]["head_uuid"]))
            else:
                users[owner].append("%s %s %s %s %s" % (event_at, e["event_type"], e["object_kind"], e["object_uuid"], loguuid))

        elif e["event_type"] == "delete" and e["object_uuid"][6:11] == "o0j2j":
            if e["properties"]["old_attributes"]["link_class"] == "tag":
                users[owner].append("%s Untagged %s" % (event_at, e["properties"]["old_attributes"]["head_uuid"]))
            elif e["properties"]["old_attributes"]["link_class"] == "permission":
                users[owner].append("%s Unshared %s with %s" % (event_at, e["properties"]["old_attributes"]["tail_uuid"], e["properties"]["old_attributes"]["head_uuid"]))
            else:
                users[owner].append("%s %s %s %s %s" % (event_at, e["event_type"], e["object_kind"], e["object_uuid"], loguuid))

        elif e["event_type"] == "create" and e["object_uuid"][6:11] == "4zz18":
            if e["properties"]["new_attributes"]["properties"].get("type") in ("log", "output", "intermediate"):
                pass
            else:
                users[owner].append("%s Created collection %s %s" % (event_at, getname(e["properties"]["new_attributes"]), loguuid))

        elif e["event_type"] == "update" and e["object_uuid"][6:11] == "4zz18":
            users[owner].append("%s Updated collection %s %s" % (event_at, getname(e["properties"]["new_attributes"]), loguuid))

        elif e["event_type"] == "delete" and e["object_uuid"][6:11] == "4zz18":
            if e["properties"]["old_attributes"]["properties"].get("type") in ("log", "output", "intermediate"):
                pass
            else:
                users[owner].append("%s Deleted collection %s %s" % (event_at, getname(e["properties"]["old_attributes"]), loguuid))

        elif e["event_type"] == "file_download":
                users.setdefault(e["object_uuid"], [])
                users[e["object_uuid"]].append("%s Downloaded file \"%s\" from \"%s\" (%s) (%s)" % (event_at,
                                                                                       e["properties"].get("collection_file_path") or e["properties"].get("reqPath"),
                                                                                       getCollectionName(arv, e["properties"].get("portable_data_hash")),
                                                                                       e["properties"].get("collection_uuid"),
                                                                                       e["properties"].get("portable_data_hash")))

        elif e["event_type"] == "file_upload":
                users.setdefault(e["object_uuid"], [])
                users[e["object_uuid"]].append("%s Uploaded file \"%s\" to \"%s\" (%s)" % (event_at,
                                                                                    e["properties"].get("collection_file_path") or e["properties"].get("reqPath"),
                                                                                    getCollectionName(arv, e["properties"].get("portable_data_hash")),
                                                                                    e["properties"].get("collection_uuid")))

        else:
            users[owner].append("%s %s %s %s %s" % (event_at, e["event_type"], e["object_kind"], e["object_uuid"], loguuid))

    for k,v in users.items():
        if k is None or k.endswith("-tpzed-000000000000000"):
            continue
        print(getuserinfo(arv, k))
        for ev in v:
            print("  %s" % ev)
        print("")

if __name__ == "__main__":
    main()