CREATE TABLE users (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(120) NOT NULL,
    email VARCHAR(160) NOT NULL UNIQUE,
    password_hash VARCHAR(255) NOT NULL,
    role ENUM('admin','delegate','public') NOT NULL DEFAULT 'public',
    active BOOLEAN NOT NULL DEFAULT TRUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB;

CREATE TABLE tournaments (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(160) NOT NULL,
    category ENUM('Masculino','Femenino','Mixto') NOT NULL,
    age_subcategory VARCHAR(80),
    format ENUM('Liga','Eliminacion directa','Doble eliminacion','Grupos + playoffs') NOT NULL,
    status ENUM('draft','active','finished') NOT NULL DEFAULT 'draft',
    starts_at DATE,
    ends_at DATE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    INDEX idx_tournaments_status (status),
    INDEX idx_tournaments_category (category)
) ENGINE=InnoDB;

CREATE TABLE teams (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    tournament_id BIGINT UNSIGNED NOT NULL,
    name VARCHAR(160) NOT NULL,
    logo_path VARCHAR(255),
    coach_name VARCHAR(160),
    delegate_user_id BIGINT UNSIGNED,
    registration_token CHAR(32) NOT NULL UNIQUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_teams_tournament FOREIGN KEY (tournament_id) REFERENCES tournaments(id) ON DELETE CASCADE,
    CONSTRAINT fk_teams_delegate FOREIGN KEY (delegate_user_id) REFERENCES users(id) ON DELETE SET NULL,
    UNIQUE KEY uq_team_tournament_name (tournament_id, name),
    INDEX idx_teams_tournament (tournament_id)
) ENGINE=InnoDB;

CREATE TABLE players (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    team_id BIGINT UNSIGNED NOT NULL,
    first_name VARCHAR(120) NOT NULL,
    last_name VARCHAR(120) NOT NULL,
    document_id VARCHAR(60) NOT NULL,
    birth_date DATE,
    jersey_number TINYINT UNSIGNED,
    position ENUM('Armador','Opuesto','Central','Punta','Libero','Universal'),
    photo_path VARCHAR(255),
    active BOOLEAN NOT NULL DEFAULT TRUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_players_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE CASCADE,
    UNIQUE KEY uq_player_document_team (team_id, document_id),
    UNIQUE KEY uq_player_number_team (team_id, jersey_number),
    INDEX idx_players_team (team_id)
) ENGINE=InnoDB;

CREATE TABLE courts (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(120) NOT NULL,
    address VARCHAR(220),
    active BOOLEAN NOT NULL DEFAULT TRUE
) ENGINE=InnoDB;

CREATE TABLE referees (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(140) NOT NULL,
    license VARCHAR(80),
    phone VARCHAR(60),
    active BOOLEAN NOT NULL DEFAULT TRUE
) ENGINE=InnoDB;

CREATE TABLE matches (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    tournament_id BIGINT UNSIGNED NOT NULL,
    phase VARCHAR(80) NOT NULL DEFAULT 'regular',
    scheduled_at DATETIME,
    court_id BIGINT UNSIGNED,
    home_team_id BIGINT UNSIGNED NOT NULL,
    away_team_id BIGINT UNSIGNED NOT NULL,
    status ENUM('scheduled','live','finished','cancelled') NOT NULL DEFAULT 'scheduled',
    winner_team_id BIGINT UNSIGNED,
    home_sets TINYINT UNSIGNED NOT NULL DEFAULT 0,
    away_sets TINYINT UNSIGNED NOT NULL DEFAULT 0,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_matches_tournament FOREIGN KEY (tournament_id) REFERENCES tournaments(id) ON DELETE CASCADE,
    CONSTRAINT fk_matches_court FOREIGN KEY (court_id) REFERENCES courts(id) ON DELETE SET NULL,
    CONSTRAINT fk_matches_home FOREIGN KEY (home_team_id) REFERENCES teams(id),
    CONSTRAINT fk_matches_away FOREIGN KEY (away_team_id) REFERENCES teams(id),
    CONSTRAINT fk_matches_winner FOREIGN KEY (winner_team_id) REFERENCES teams(id) ON DELETE SET NULL,
    CONSTRAINT chk_different_teams CHECK (home_team_id <> away_team_id),
    INDEX idx_matches_tournament_status (tournament_id, status),
    INDEX idx_matches_schedule (scheduled_at)
) ENGINE=InnoDB;

CREATE TABLE match_referees (
    match_id BIGINT UNSIGNED NOT NULL,
    referee_id BIGINT UNSIGNED NOT NULL,
    role VARCHAR(80) NOT NULL DEFAULT 'principal',
    PRIMARY KEY (match_id, referee_id),
    CONSTRAINT fk_match_referees_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_match_referees_referee FOREIGN KEY (referee_id) REFERENCES referees(id) ON DELETE CASCADE
) ENGINE=InnoDB;

CREATE TABLE match_sets (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    set_number TINYINT UNSIGNED NOT NULL,
    home_points TINYINT UNSIGNED NOT NULL DEFAULT 0,
    away_points TINYINT UNSIGNED NOT NULL DEFAULT 0,
    winner_team_id BIGINT UNSIGNED,
    side_state ENUM('normal','switched') NOT NULL DEFAULT 'normal',
    CONSTRAINT fk_sets_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_sets_winner FOREIGN KEY (winner_team_id) REFERENCES teams(id) ON DELETE SET NULL,
    UNIQUE KEY uq_set_match_number (match_id, set_number)
) ENGINE=InnoDB;

CREATE TABLE match_events (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    set_number TINYINT UNSIGNED NOT NULL,
    team_id BIGINT UNSIGNED,
    player_id BIGINT UNSIGNED,
    event_type ENUM('serve','point','error','ace','block','attack','rotation','substitution','timeout','libero','yellow_card','red_card','mvp','audit','signature') NOT NULL,
    points_home TINYINT UNSIGNED NOT NULL DEFAULT 0,
    points_away TINYINT UNSIGNED NOT NULL DEFAULT 0,
    notes VARCHAR(255),
    created_by BIGINT UNSIGNED,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_events_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_events_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE SET NULL,
    CONSTRAINT fk_events_player FOREIGN KEY (player_id) REFERENCES players(id) ON DELETE SET NULL,
    CONSTRAINT fk_events_user FOREIGN KEY (created_by) REFERENCES users(id) ON DELETE SET NULL,
    INDEX idx_events_match_created (match_id, created_at),
    INDEX idx_events_player_type (player_id, event_type)
) ENGINE=InnoDB;

CREATE TABLE rotations (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    team_id BIGINT UNSIGNED NOT NULL,
    set_number TINYINT UNSIGNED NOT NULL,
    position_number TINYINT UNSIGNED NOT NULL,
    player_id BIGINT UNSIGNED NOT NULL,
    is_libero BOOLEAN NOT NULL DEFAULT FALSE,
    CONSTRAINT fk_rotations_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_rotations_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE CASCADE,
    CONSTRAINT fk_rotations_player FOREIGN KEY (player_id) REFERENCES players(id) ON DELETE CASCADE,
    UNIQUE KEY uq_rotation_slot (match_id, team_id, set_number, position_number)
) ENGINE=InnoDB;

CREATE TABLE match_liberos (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    team_id BIGINT UNSIGNED NOT NULL,
    player_id BIGINT UNSIGNED NOT NULL,
    set_number TINYINT UNSIGNED NOT NULL,
    is_starting BOOLEAN NOT NULL DEFAULT FALSE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_liberos_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_liberos_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE CASCADE,
    CONSTRAINT fk_liberos_player FOREIGN KEY (player_id) REFERENCES players(id) ON DELETE CASCADE,
    UNIQUE KEY uq_match_team_set_libero (match_id, team_id, set_number, player_id)
) ENGINE=InnoDB;

CREATE TABLE substitutions (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    team_id BIGINT UNSIGNED NOT NULL,
    set_number TINYINT UNSIGNED NOT NULL,
    player_out_id BIGINT UNSIGNED NOT NULL,
    player_in_id BIGINT UNSIGNED NOT NULL,
    reason VARCHAR(120),
    created_by BIGINT UNSIGNED,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_substitutions_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_substitutions_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE CASCADE,
    CONSTRAINT fk_substitutions_out FOREIGN KEY (player_out_id) REFERENCES players(id),
    CONSTRAINT fk_substitutions_in FOREIGN KEY (player_in_id) REFERENCES players(id),
    CONSTRAINT fk_substitutions_user FOREIGN KEY (created_by) REFERENCES users(id) ON DELETE SET NULL,
    INDEX idx_substitutions_match_set (match_id, set_number, team_id)
) ENGINE=InnoDB;

CREATE TABLE timeouts (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    team_id BIGINT UNSIGNED NOT NULL,
    set_number TINYINT UNSIGNED NOT NULL,
    points_home TINYINT UNSIGNED NOT NULL DEFAULT 0,
    points_away TINYINT UNSIGNED NOT NULL DEFAULT 0,
    requested_by VARCHAR(120),
    created_by BIGINT UNSIGNED,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_timeouts_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_timeouts_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE CASCADE,
    CONSTRAINT fk_timeouts_user FOREIGN KEY (created_by) REFERENCES users(id) ON DELETE SET NULL,
    INDEX idx_timeouts_match_set (match_id, set_number, team_id)
) ENGINE=InnoDB;

CREATE TABLE rally_history (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    set_number TINYINT UNSIGNED NOT NULL,
    rally_number INT UNSIGNED NOT NULL,
    serving_team_id BIGINT UNSIGNED,
    winning_team_id BIGINT UNSIGNED,
    result_type ENUM('point','error','ace','block','attack') NOT NULL DEFAULT 'point',
    points_home TINYINT UNSIGNED NOT NULL DEFAULT 0,
    points_away TINYINT UNSIGNED NOT NULL DEFAULT 0,
    notes VARCHAR(255),
    created_by BIGINT UNSIGNED,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_rally_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_rally_serving_team FOREIGN KEY (serving_team_id) REFERENCES teams(id) ON DELETE SET NULL,
    CONSTRAINT fk_rally_winning_team FOREIGN KEY (winning_team_id) REFERENCES teams(id) ON DELETE SET NULL,
    CONSTRAINT fk_rally_user FOREIGN KEY (created_by) REFERENCES users(id) ON DELETE SET NULL,
    UNIQUE KEY uq_rally_number (match_id, set_number, rally_number)
) ENGINE=InnoDB;

CREATE TABLE referee_audit_logs (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    user_id BIGINT UNSIGNED,
    action VARCHAR(80) NOT NULL,
    payload JSON,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_audit_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_audit_user FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE SET NULL,
    INDEX idx_audit_match_created (match_id, created_at)
) ENGINE=InnoDB;

CREATE TABLE referee_signatures (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    referee_id BIGINT UNSIGNED,
    signer_name VARCHAR(140) NOT NULL,
    role VARCHAR(80) NOT NULL DEFAULT 'principal',
    signature_hash CHAR(64) NOT NULL,
    signed_payload JSON,
    signed_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_signatures_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_signatures_referee FOREIGN KEY (referee_id) REFERENCES referees(id) ON DELETE SET NULL,
    UNIQUE KEY uq_signature_match_role (match_id, role)
) ENGINE=InnoDB;

CREATE TABLE sanctions (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    match_id BIGINT UNSIGNED NOT NULL,
    team_id BIGINT UNSIGNED,
    player_id BIGINT UNSIGNED,
    card_type ENUM('yellow','red') NOT NULL,
    reason VARCHAR(255),
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    CONSTRAINT fk_sanctions_match FOREIGN KEY (match_id) REFERENCES matches(id) ON DELETE CASCADE,
    CONSTRAINT fk_sanctions_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE SET NULL,
    CONSTRAINT fk_sanctions_player FOREIGN KEY (player_id) REFERENCES players(id) ON DELETE SET NULL
) ENGINE=InnoDB;

CREATE TABLE team_standings (
    tournament_id BIGINT UNSIGNED NOT NULL,
    team_id BIGINT UNSIGNED NOT NULL,
    played INT UNSIGNED NOT NULL DEFAULT 0,
    won INT UNSIGNED NOT NULL DEFAULT 0,
    lost INT UNSIGNED NOT NULL DEFAULT 0,
    sets_for INT UNSIGNED NOT NULL DEFAULT 0,
    sets_against INT UNSIGNED NOT NULL DEFAULT 0,
    points INT UNSIGNED NOT NULL DEFAULT 0,
    PRIMARY KEY (tournament_id, team_id),
    CONSTRAINT fk_standings_tournament FOREIGN KEY (tournament_id) REFERENCES tournaments(id) ON DELETE CASCADE,
    CONSTRAINT fk_standings_team FOREIGN KEY (team_id) REFERENCES teams(id) ON DELETE CASCADE
) ENGINE=InnoDB;