CREATE TABLE app_uploader_files (
    id UUID PRIMARY KEY UNIQUE NOT NULL DEFAULT gen_random_uuid(),
    uid VARCHAR NOT NULL,
    file_crypto VARCHAR NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
    -- settings
    expire TIMESTAMP NOT NULL,
    max_visits INT NOT NULL,
    FOREIGN KEY (uid) REFERENCES users (uid)
);

CREATE TABLE app_uploader_files_access (
    file_id UUID NOT NULL,
    -- info about user who accessed
    uid VARCHAR DEFAULT NULL, -- link to logged in user
    ip_address VARCHAR NOT NULL,
    agent VARCHAR NOT NULL,
    access_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
    FOREIGN KEY (file_id) REFERENCES app_uploader_files (id),
    FOREIGN KEY (uid) REFERENCES users (uid)
);