from __future__ import annotations

import yaml
from pathlib import Path

from tracker.config import TrackerConfig
from tracker.constants import MealPattern
from tracker.models import AgentProfileYaml, RecipeSearchDefaults, ResolvedAgentProfile


def load_agent_profile_yaml(path: Path) -> AgentProfileYaml:
    if not path.exists():
        return AgentProfileYaml()
    raw = yaml.safe_load(path.read_text())
    if raw is None:
        return AgentProfileYaml()
    if not isinstance(raw, dict):
        return AgentProfileYaml()
    return AgentProfileYaml.model_validate(raw)


def resolve_agent_profile(cfg: TrackerConfig) -> ResolvedAgentProfile:
    """Merge config.yaml with agent_profile.yaml into one machine-readable profile."""
    partial = load_agent_profile_yaml(cfg.agent_profile_resolved_path)
    recipe_defaults = partial.recipe_search_defaults or RecipeSearchDefaults()
    meal_pattern = partial.meal_pattern or MealPattern.BD_ONLY
    default_tz = partial.default_timezone or "America/Chicago"
    costco_label = partial.costco_event_label or "Costco"
    costco_minutes = partial.costco_duration_minutes if partial.costco_duration_minutes is not None else 90
    calorie = partial.calorie_policy or "moderate_deficit"
    pantry_uid = partial.pantry_user_id if partial.pantry_user_id is not None else 5
    add_ins = list(partial.raw_addins_defaults)

    return ResolvedAgentProfile(
        pantry_user_id=pantry_uid,
        active_program_id=cfg.active_program_id,
        meal_pattern=meal_pattern,
        default_timezone=default_tz,
        costco_event_label=costco_label,
        costco_duration_minutes=costco_minutes,
        weekly_climbing_sessions_target=partial.weekly_climbing_sessions_target,
        calorie_policy=calorie,
        recipe_search_defaults=recipe_defaults,
        raw_addins_defaults=add_ins,
        parser_data_dir=cfg.parser_data_dir,
        default_calendar_id=cfg.default_calendar_id,
        chores_calendar_id=cfg.chores_calendar_id,
        workout_calendar_id=cfg.workout_calendar_id,
        tracker_app_url=cfg.tracker_app_url,
    )