"""Deterministic synthetic signer name/role generation.

No external dependency (e.g. Faker) is required: a compact, self-contained
name pool keeps the pipeline dependency-light and fully reproducible from a
seed alone (Faker's own generators are not guaranteed stable across
versions, which would break the "same seed -> same output" contract).
"""

from __future__ import annotations

import random

FIRST_NAMES: tuple[str, ...] = (
    "James", "Mary", "Robert", "Patricia", "John", "Jennifer", "Michael", "Linda",
    "David", "Elizabeth", "William", "Barbara", "Richard", "Susan", "Joseph", "Jessica",
    "Thomas", "Sarah", "Charles", "Karen", "Christopher", "Nancy", "Daniel", "Lisa",
    "Matthew", "Betty", "Anthony", "Margaret", "Mark", "Sandra", "Donald", "Ashley",
    "Steven", "Kimberly", "Paul", "Emily", "Andrew", "Donna", "Joshua", "Michelle",
    "Kenneth", "Carol", "Kevin", "Amanda", "Brian", "Melissa", "George", "Deborah",
    "Edward", "Stephanie", "Ronald", "Rebecca", "Timothy", "Laura", "Jason", "Sharon",
    "Jeffrey", "Cynthia", "Ryan", "Kathleen", "Jacob", "Amy", "Gary", "Angela",
    "Nicholas", "Shirley", "Eric", "Anna", "Jonathan", "Brenda", "Stephen", "Pamela",
    "Larry", "Emma", "Justin", "Nicole", "Scott", "Helen", "Brandon", "Samantha",
    "Wei", "Mei", "Hiroshi", "Yuki", "Raj", "Priya", "Ahmed", "Fatima",
    "Carlos", "Sofia", "Hans", "Ingrid", "Liam", "Olivia", "Noah", "Ava",
)

LAST_NAMES: tuple[str, ...] = (
    "Smith", "Johnson", "Williams", "Brown", "Jones", "Garcia", "Miller", "Davis",
    "Rodriguez", "Martinez", "Hernandez", "Lopez", "Gonzalez", "Wilson", "Anderson", "Thomas",
    "Taylor", "Moore", "Jackson", "Martin", "Lee", "Perez", "Thompson", "White",
    "Harris", "Sanchez", "Clark", "Ramirez", "Lewis", "Robinson", "Walker", "Young",
    "Allen", "King", "Wright", "Scott", "Torres", "Nguyen", "Hill", "Flores",
    "Green", "Adams", "Nelson", "Baker", "Hall", "Rivera", "Campbell", "Mitchell",
    "Carter", "Roberts", "Chen", "Tan", "Kumar", "Patel", "Khan", "Ali",
    "Muller", "Schmidt", "Rossi", "Dubois", "Kowalski", "Ivanov", "Suzuki", "Tanaka",
)

ROLE_POOL: tuple[str, ...] = (
    "Account Holder",
    "Authorized Signatory",
    "Branch Manager",
    "Bank Representative",
    "Bank Officer",
    "Loan Officer",
    "Notary Public",
    "Guarantor",
    "Co-Signer",
    "Compliance Officer",
    "First Authorised Signatory",
    "Second Authorised Signatory",
)


def generate_name(rng: random.Random) -> str:
    """Generate a deterministic synthetic full name from a seeded RNG."""
    return f"{rng.choice(FIRST_NAMES)} {rng.choice(LAST_NAMES)}"


def generate_role(rng: random.Random) -> str:
    """Generate a deterministic synthetic role from a seeded RNG."""
    return rng.choice(ROLE_POOL)