-- Migration 002: Organization (Clubs, Divisions, Training Groups)
-- Erstellt: 2026-04-21
-- Beschreibung: Organisationsstruktur für Vereine und Trainingsgruppen

-- Clubs (Vereine)
CREATE TABLE clubs (
    id SERIAL PRIMARY KEY,
    name VARCHAR(200) NOT NULL,
    abbreviation VARCHAR(50),
    description TEXT,
    status VARCHAR(50) DEFAULT 'active',
    created_at TIMESTAMP DEFAULT NOW(),
    updated_at TIMESTAMP DEFAULT NOW()
);

CREATE INDEX idx_clubs_status ON clubs(status);

-- Divisions (Sparten) - optional
CREATE TABLE divisions (
    id SERIAL PRIMARY KEY,
    club_id INT REFERENCES clubs(id) ON DELETE CASCADE,
    name VARCHAR(200) NOT NULL,
    focus_area VARCHAR(100),  -- karate, selbstverteidigung, gewaltschutz
    created_at TIMESTAMP DEFAULT NOW(),
    updated_at TIMESTAMP DEFAULT NOW()
);

CREATE INDEX idx_divisions_club ON divisions(club_id);

-- Training Groups (Trainingsgruppen)
CREATE TABLE training_groups (
    id SERIAL PRIMARY KEY,
    club_id INT REFERENCES clubs(id) ON DELETE CASCADE,
    division_id INT REFERENCES divisions(id),
    name VARCHAR(200) NOT NULL,
    focus VARCHAR(100),
    level VARCHAR(50),
    age_group VARCHAR(50),
    weekday VARCHAR(20),
    time_start TIME,
    time_end TIME,
    location VARCHAR(200),
    trainer_id INT REFERENCES profiles(id),
    co_trainer_ids JSONB,  -- [1, 2, 3]
    status VARCHAR(50) DEFAULT 'active',
    created_at TIMESTAMP DEFAULT NOW(),
    updated_at TIMESTAMP DEFAULT NOW()
);

CREATE INDEX idx_groups_club ON training_groups(club_id);
CREATE INDEX idx_groups_trainer ON training_groups(trainer_id);
CREATE INDEX idx_groups_status ON training_groups(status);