"""Synthetic user personas for simulation."""

import math
from dataclasses import dataclass


@dataclass
class Persona:
    name: str
    description: str
    # Feature preference weights — used by deterministic judge
    prefers_high_priority: float  # 0–1: scales response to priority
    prefers_overdue: float        # 0–1: scales response to overdue tasks
    morning_active: bool          # higher engagement hours 6–10
    evening_active: bool          # higher engagement hours 18–22
    recency_bias: float           # 0–1: prefers recently-due tasks
    # Synthetic profile features for egreedy-v2 sim (ADR-0012).
    # Values represent what a typical user of this persona would have
    # accumulated after a few weeks of app use.
    _completion_rate: float = 0.3
    _dismiss_rate: float = 0.2
    _mean_dwell_ms: float = 60_000.0   # ms
    _preferred_hour: float = 12.0      # 0–23
    _tip_volume_30d: float = 15.0

    def profile_features(self, now_hour: int | None = None) -> dict:
        """Return profile_features dict compatible with the ml/serving API."""
        return {
            "completion_rate_30d": self._completion_rate,
            "dismiss_rate_30d": self._dismiss_rate,
            "mean_dwell_ms_30d": self._mean_dwell_ms,
            "preferred_hour": self._preferred_hour,
            "tip_volume_30d": self._tip_volume_30d,
        }


PERSONAS: list[Persona] = [
    Persona(
        name="deadline-driven",
        description=(
            "Responds urgently to overdue and high-priority tasks. "
            "Most active in the morning. Dismisses low-priority tips."
        ),
        prefers_high_priority=0.9,
        prefers_overdue=0.85,
        morning_active=True,
        evening_active=False,
        recency_bias=0.3,
        _completion_rate=0.55,
        _dismiss_rate=0.10,
        _mean_dwell_ms=45_000.0,
        _preferred_hour=8.0,
        _tip_volume_30d=22.0,
    ),
    Persona(
        name="evening-relaxed",
        description=(
            "Reviews tasks in the evenings. Neutral on priority. "
            "Snoozes morning recommendations."
        ),
        prefers_high_priority=0.5,
        prefers_overdue=0.4,
        morning_active=False,
        evening_active=True,
        recency_bias=0.5,
        _completion_rate=0.30,
        _dismiss_rate=0.25,
        _mean_dwell_ms=90_000.0,
        _preferred_hour=20.0,
        _tip_volume_30d=12.0,
    ),
    Persona(
        name="low-priority-first",
        description=(
            "Clears small tasks first. Snoozes urgent items until deadline. "
            "Morning person."
        ),
        prefers_high_priority=0.2,
        prefers_overdue=0.6,
        morning_active=True,
        evening_active=False,
        recency_bias=0.7,
        _completion_rate=0.40,
        _dismiss_rate=0.15,
        _mean_dwell_ms=30_000.0,
        _preferred_hour=9.0,
        _tip_volume_30d=18.0,
    ),
    Persona(
        name="consistent-responder",
        description=(
            "Engages consistently across hours and days. "
            "Acts on helpful tips regardless of priority."
        ),
        prefers_high_priority=0.6,
        prefers_overdue=0.6,
        morning_active=True,
        evening_active=True,
        recency_bias=0.5,
        _completion_rate=0.50,
        _dismiss_rate=0.10,
        _mean_dwell_ms=60_000.0,
        _preferred_hour=12.0,
        _tip_volume_30d=30.0,
    ),
    Persona(
        name="overdue-ignorer",
        description=(
            "Avoids overdue tasks (stress avoidance). "
            "Focuses on future-due, high-priority items. Evening person."
        ),
        prefers_high_priority=0.8,
        prefers_overdue=0.1,
        morning_active=False,
        evening_active=True,
        recency_bias=0.2,
        _completion_rate=0.20,
        _dismiss_rate=0.40,
        _mean_dwell_ms=120_000.0,
        _preferred_hour=19.0,
        _tip_volume_30d=10.0,
    ),
]