#!/usr/bin/env python3
"""Seed the afterhours-shifts DynamoDB table with initial roster and schedule.

Usage:
    python scripts/seed_schedule.py                    # uses default table name
    python scripts/seed_schedule.py --table my-table   # custom table name
"""

import argparse

import boto3


TABLE_NAME = "afterhours-shifts"

ROSTER = [
    {"extension": "100", "name": "Adam Moussa"},
    {"extension": "111", "name": "Alyssa Ficarra"},
    {"extension": "113", "name": "Sarah May"},
    {"extension": "114", "name": "Ashley Fedner"},
    {"extension": "115", "name": "Derrick Smith"},
    {"extension": "116", "name": "Cindy Vallecillo"},
]

WEEKLY_SCHEDULE = {
    "Monday": {"extension": "114", "name": "Ashley Fedner"},
    "Tuesday": {"extension": "115", "name": "Derrick Smith"},
    "Wednesday": {"extension": "114", "name": "Ashley Fedner"},
    "Thursday": {"extension": "115", "name": "Derrick Smith"},
    "Friday": {"extension": "116", "name": "Cindy Vallecillo"},
    "Saturday": {"extension": "100", "name": "Fallback"},
    "Sunday": {"extension": "100", "name": "Fallback"},
}

CONFIG = {
    "ring_group": "800",
    "fallback_extension": "100",
}


def seed(table_name: str):
    dynamodb = boto3.resource("dynamodb")
    table = dynamodb.Table(table_name)

    print(f"Seeding table: {table_name}")

    # Roster
    for emp in ROSTER:
        table.put_item(
            Item={
                "PK": "ROSTER",
                "SK": emp["extension"],
                "name": emp["name"],
                "extension": emp["extension"],
                "slack_user_id": "",
            }
        )
        print(f"  Roster: Ext {emp['extension']} — {emp['name']}")

    # Weekly schedule
    for day, info in WEEKLY_SCHEDULE.items():
        table.put_item(
            Item={
                "PK": "WEEKLY",
                "SK": day,
                "extension": info["extension"],
                "name": info["name"],
            }
        )
        print(f"  Weekly: {day} — {info['name']} (Ext {info['extension']})")

    # Config
    table.put_item(
        Item={
            "PK": "CONFIG",
            "SK": "CONFIG",
            **CONFIG,
        }
    )
    print(f"  Config: ring_group={CONFIG['ring_group']}, fallback={CONFIG['fallback_extension']}")

    print("\nDone! Employees should run `/oncall register <extension>` in Slack to link their accounts.")


if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("--table", default=TABLE_NAME)
    args = parser.parse_args()
    seed(args.table)