"""
Kanonische Aufteilung activity_log vs. EAV für Aktivitätssessions.

Single Source für: welche Felder das CSV-/Registry-Modul „activity“ direkt in activity_log schreibt,
und welche training_parameters primär über EAV laufen (mit optionalem Lesefallback auf Legacy-Spalten).

Normative Doku: .claude/docs/technical/ACTIVITY_PRODUCTION_ARCHITECTURE_AND_PHASES.md
"""
from __future__ import annotations

from typing import Dict, Final

# ── activity_log: Modul „activity“ (Universal-CSV-Kern) ───────────────────────
# Nur diese Keys erscheinen in csv_parser.module_registry MODULE_DEFINITIONS["activity"].fields.
# Alles Weitere: training_parameters + EAV (Import über upsert_session_metrics_from_csv_mapped).
ACTIVITY_MODULE_REGISTRY_FIELD_KEYS: Final[frozenset[str]] = frozenset(
    {
        "date",
        "start_time",
        "end_time",
        "activity_type",
        "duration_min",
        "kcal_active",
        "kcal_resting",
        "distance_km",
        "hr_avg",
        "hr_max",
        "rpe",
        "notes",
    }
)

# Parameter-Keys (training_parameters.key), die primär in EAV geführt werden; source_field nach Migration 057 NULL.
# Lesefallback: activity_log-Spalte unter ACTIVITY_LOG_LEGACY_COLUMN_FOR_EAV_PRIMARY_PARAM, falls EAV leer.
ACTIVITY_EAV_PRIMARY_PARAMETER_KEYS: Final[frozenset[str]] = frozenset(
    {
        "min_hr",
        "pace_min_per_km",
        "cadence",
        "avg_power",
        "elevation_gain",
        "temperature_celsius",
        "humidity_percent",
        "avg_hr_percent",
        "kcal_per_km",
    }
)

# Spaltenname activity_log für Legacy-Lesefallback (Merge), wenn EAV für den Parameter fehlt.
ACTIVITY_LOG_LEGACY_COLUMN_FOR_EAV_PRIMARY_PARAM: Final[Dict[str, str]] = {
    "min_hr": "hr_min",
    "pace_min_per_km": "pace_min_per_km",
    "cadence": "cadence",
    "avg_power": "avg_power",
    "elevation_gain": "elevation_gain",
    "temperature_celsius": "temperature_celsius",
    "humidity_percent": "humidity_percent",
    "avg_hr_percent": "avg_hr_percent",
    "kcal_per_km": "kcal_per_km",
}

# Spalten, die mit training_parameters.source_field (nach Migration 057) noch activity_log abbilden.
# Erweiterte Metriken sind EAV-primär — nicht hier auflisten.
ACTIVITY_LOG_PATCHABLE_COLUMNS: Final[frozenset[str]] = frozenset(
    {
        "start_time",
        "end_time",
        "activity_type",
        "duration_min",
        "kcal_active",
        "kcal_resting",
        "hr_avg",
        "hr_max",
        "distance_km",
        "rpe",
        "notes",
    }
)