CREATE TABLE virtual_game_sessions (
    id BIGSERIAL PRIMARY KEY,
    user_id BIGINT NOT NULL REFERENCES users(id),
    game_id VARCHAR(50) NOT NULL,
    session_token VARCHAR(255) NOT NULL UNIQUE,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE virtual_game_transactions (
    id BIGSERIAL PRIMARY KEY,
    -- session_id BIGINT NOT NULL REFERENCES virtual_game_sessions(id),
    user_id BIGINT NOT NULL REFERENCES users(id),
    company_id BIGINT,
    provider VARCHAR(100),
    game_id VARCHAR(100),
    wallet_id BIGINT NOT NULL REFERENCES wallets(id),
    transaction_type VARCHAR(20) NOT NULL,
    amount BIGINT NOT NULL,
    currency VARCHAR(3) NOT NULL,
    external_transaction_id VARCHAR(100) NOT NULL UNIQUE, -- PopOK transaction ID
    status VARCHAR(20) NOT NULL DEFAULT 'PENDING', -- PENDING, COMPLETED, FAILED
    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE virtual_game_histories (
    id BIGSERIAL PRIMARY KEY,
    -- session_id VARCHAR(100), -- nullable
    user_id BIGINT NOT NULL,
    company_id BIGINT,
    provider VARCHAR(100),
    wallet_id BIGINT, -- nullable
    game_id BIGINT, -- nullable
    transaction_type VARCHAR(20) NOT NULL, -- e.g., BET, WIN, CANCEL
    amount BIGINT NOT NULL, -- in cents or smallest currency unit
    currency VARCHAR(10) NOT NULL,
    external_transaction_id VARCHAR(100) NOT NULL,
    reference_transaction_id VARCHAR(100), -- nullable, for cancel/refund
    status VARCHAR(20) NOT NULL DEFAULT 'COMPLETED', -- transaction status
    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMP NOT NULL DEFAULT NOW()
);

CREATE TABLE IF NOT EXISTS favorite_games (
    id BIGSERIAL PRIMARY KEY,
    user_id BIGINT NOT NULL,
    game_id BIGINT NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

-- Optional: Indexes for performance
CREATE INDEX idx_virtual_game_user_id ON virtual_game_histories(user_id);
CREATE INDEX idx_virtual_game_transaction_type ON virtual_game_histories(transaction_type);
CREATE INDEX idx_virtual_game_game_id ON virtual_game_histories(game_id);
CREATE INDEX idx_virtual_game_external_transaction_id ON virtual_game_histories(external_transaction_id);

CREATE INDEX idx_virtual_game_sessions_user_id ON virtual_game_sessions(user_id);
-- CREATE INDEX idx_virtual_game_transactions_session_id ON virtual_game_transactions(session_id);
CREATE INDEX idx_virtual_game_transactions_user_id ON virtual_game_transactions(user_id);

ALTER TABLE favorite_games
ADD CONSTRAINT unique_user_game_favorite UNIQUE (user_id, game_id);