-- Migration 013: Training Parameters Registry
-- Training Type Profiles System - Foundation
-- Date: 2026-03-23
-- Issue: #15

-- ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-- TRAINING PARAMETERS REGISTRY
-- Zentrale Definition aller messbaren Parameter für Aktivitäten
-- ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

CREATE TABLE IF NOT EXISTS training_parameters (
    id SERIAL PRIMARY KEY,
    key VARCHAR(50) UNIQUE NOT NULL,
    name_de VARCHAR(100) NOT NULL,
    name_en VARCHAR(100) NOT NULL,
    category VARCHAR(50) NOT NULL,
    data_type VARCHAR(20) NOT NULL,
    unit VARCHAR(20),
    description_de TEXT,
    description_en TEXT,
    source_field VARCHAR(100),
    validation_rules JSONB DEFAULT '{}'::jsonb,
    is_active BOOLEAN DEFAULT true,
    created_at TIMESTAMP DEFAULT NOW(),

    CONSTRAINT chk_category CHECK (category IN (
        'physical', 'physiological', 'subjective', 'environmental', 'performance'
    )),
    CONSTRAINT chk_data_type CHECK (data_type IN (
        'integer', 'float', 'string', 'boolean'
    ))
);

CREATE INDEX idx_training_parameters_category ON training_parameters(category) WHERE is_active = true;
CREATE INDEX idx_training_parameters_key ON training_parameters(key) WHERE is_active = true;

COMMENT ON TABLE training_parameters IS 'Registry of all measurable activity parameters (Training Type Profiles System)';
COMMENT ON COLUMN training_parameters.key IS 'Unique identifier (e.g. "avg_hr", "duration_min")';
COMMENT ON COLUMN training_parameters.category IS 'Parameter category: physical, physiological, subjective, environmental, performance';
COMMENT ON COLUMN training_parameters.data_type IS 'Data type: integer, float, string, boolean';
COMMENT ON COLUMN training_parameters.source_field IS 'Mapping to activity_log column name';
COMMENT ON COLUMN training_parameters.validation_rules IS 'Min/Max/Enum for validation (JSONB)';

-- ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-- STANDARD PARAMETERS
-- ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

INSERT INTO training_parameters (key, name_de, name_en, category, data_type, unit, source_field, validation_rules, description_de, description_en) VALUES

-- Physical Parameters
('duration_min', 'Dauer', 'Duration', 'physical', 'integer', 'min', 'duration_min',
 '{"min": 0, "max": 600}'::jsonb,
 'Trainingsdauer in Minuten',
 'Training duration in minutes'),

('distance_km', 'Distanz', 'Distance', 'physical', 'float', 'km', 'distance_km',
 '{"min": 0, "max": 200}'::jsonb,
 'Zurückgelegte Distanz in Kilometern',
 'Distance covered in kilometers'),

('kcal_active', 'Aktive Kalorien', 'Active Calories', 'physical', 'integer', 'kcal', 'kcal_active',
 '{"min": 0, "max": 5000}'::jsonb,
 'Aktiver Kalorienverbrauch',
 'Active calorie burn'),

('kcal_resting', 'Ruhekalorien', 'Resting Calories', 'physical', 'integer', 'kcal', 'kcal_resting',
 '{"min": 0, "max": 2000}'::jsonb,
 'Ruheumsatz während Training',
 'Resting calorie burn during training'),

('elevation_gain', 'Höhenmeter', 'Elevation Gain', 'physical', 'integer', 'm', 'elevation_gain',
 '{"min": 0, "max": 5000}'::jsonb,
 'Überwundene Höhenmeter',
 'Elevation gain in meters'),

('pace_min_per_km', 'Pace', 'Pace', 'physical', 'float', 'min/km', 'pace_min_per_km',
 '{"min": 2, "max": 20}'::jsonb,
 'Durchschnittstempo in Minuten pro Kilometer',
 'Average pace in minutes per kilometer'),

('cadence', 'Trittfrequenz', 'Cadence', 'physical', 'integer', 'spm', 'cadence',
 '{"min": 0, "max": 220}'::jsonb,
 'Schrittfrequenz (Schritte pro Minute)',
 'Step frequency (steps per minute)'),

-- Physiological Parameters
('avg_hr', 'Durchschnittspuls', 'Average Heart Rate', 'physiological', 'integer', 'bpm', 'hr_avg',
 '{"min": 30, "max": 220}'::jsonb,
 'Durchschnittliche Herzfrequenz',
 'Average heart rate'),

('max_hr', 'Maximalpuls', 'Max Heart Rate', 'physiological', 'integer', 'bpm', 'hr_max',
 '{"min": 40, "max": 220}'::jsonb,
 'Maximale Herzfrequenz',
 'Maximum heart rate'),

('min_hr', 'Minimalpuls', 'Min Heart Rate', 'physiological', 'integer', 'bpm', 'hr_min',
 '{"min": 30, "max": 200}'::jsonb,
 'Minimale Herzfrequenz',
 'Minimum heart rate'),

('avg_power', 'Durchschnittsleistung', 'Average Power', 'physiological', 'integer', 'W', 'avg_power',
 '{"min": 0, "max": 1000}'::jsonb,
 'Durchschnittliche Leistung in Watt',
 'Average power output in watts'),

-- Subjective Parameters
('rpe', 'RPE (Anstrengung)', 'RPE (Perceived Exertion)', 'subjective', 'integer', 'scale', 'rpe',
 '{"min": 1, "max": 10}'::jsonb,
 'Subjektive Anstrengung (Rate of Perceived Exertion)',
 'Rate of Perceived Exertion'),

-- Environmental Parameters
('temperature_celsius', 'Temperatur', 'Temperature', 'environmental', 'float', '°C', 'temperature_celsius',
 '{"min": -30, "max": 50}'::jsonb,
 'Umgebungstemperatur in Celsius',
 'Ambient temperature in Celsius'),

('humidity_percent', 'Luftfeuchtigkeit', 'Humidity', 'environmental', 'integer', '%', 'humidity_percent',
 '{"min": 0, "max": 100}'::jsonb,
 'Relative Luftfeuchtigkeit in Prozent',
 'Relative humidity in percent'),

-- Performance Parameters (calculated)
('avg_hr_percent', '% Max-HF', '% Max HR', 'performance', 'float', '%', 'avg_hr_percent',
 '{"min": 0, "max": 100}'::jsonb,
 'Durchschnittspuls als Prozent der maximalen Herzfrequenz',
 'Average heart rate as percentage of max heart rate'),

('kcal_per_km', 'Kalorien pro km', 'Calories per km', 'performance', 'float', 'kcal/km', 'kcal_per_km',
 '{"min": 0, "max": 1000}'::jsonb,
 'Kalorienverbrauch pro Kilometer',
 'Calorie burn per kilometer');

-- ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
-- SUMMARY
-- ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

-- Display inserted parameters
DO $$
BEGIN
    RAISE NOTICE '✓ Migration 013 completed';
    RAISE NOTICE '  - Created training_parameters table';
    RAISE NOTICE '  - Inserted % standard parameters', (SELECT COUNT(*) FROM training_parameters);
END $$;