#!/usr/bin/env python3
import argparse
import dataset
import sys
import subprocess
import rabbit_config as rcfg
import rc_util
from datetime import datetime

parser = argparse.ArgumentParser()
parser.add_argument("-f", "--force", action="store_true", help="force update")
parser.add_argument(
    "--dry-run", action="store_true", help="enable dry run mode"
)
args = parser.parse_args()

default_state = "ok"
today = datetime.now()
updated_by, host = rc_util.get_caller_info()

# Chunk size for insert into db
size = 1000

db = dataset.connect(f"sqlite:///{rcfg.db_path}/user_reg.db")
table = db["user_state"]

if table.__len__() > 0 and not args.force:
    print("table user_state not empty, abort.")
    sys.exit()

# Getting user list
users = subprocess.run(
    ["ls", "/data/user"], stdout=subprocess.PIPE, encoding="UTF-8"
).stdout.split()

# Update user_state table
# Insert many
if len(users) > 50:
    start = 0
    while start < len(users):
        end = start + size if start + size < len(users) else len(users)
        data = [
            dict(
                username=user,
                state=default_state,
                date=today,
                updated_by=updated_by,
                host=host,
            )
            for user in users[start:end]
        ]
        if args.dry_run:
            print(f"Table insert many from {start} to {end - 1}")
        else:
            table.insert_many(data, chunk_size=size)
        start = end

# Insert one by one
else:
    for user in users:
        if args.dry_run:
            print(f"Table insert user: {user}, state: {default_state}")
        else:
            table.insert(
                {
                    "username": user,
                    "state": default_state,
                    "date": today,
                    "updated_by": updated_by,
                    "host": host,
                }
            )