create type user_role as enum (
    'user',
    'moderator',
    'admin'
);

create table users (
    id                      bigserial                   not null,
    telegram_user_id        bigint                      not null,
    first_name              character varying (64)      not null,
    last_name               character varying (64),
    username                character varying (32),
    role                    user_role,
    primary key (id),
    unique (telegram_user_id)
);

create table scripts (
    id                      bigserial                   not null,
    owner_id                bigint                      not null,
    name                    character varying (64)      not null,
    start_time              character varying (256)     not null,
    is_enabled              boolean                     not null,
    primary key (id),
    foreign key (owner_id) references users on delete cascade on update cascade,
    unique (name)
);

create table message_templates (
    id                      bigserial                   not null,
    script_id               bigint                      not null,
    name                    character varying (64)      not null,
    end_time                character varying (256)     not null,
    primary key (id),
    foreign key (script_id) references scripts on delete cascade on update cascade,
    unique (name)
);

-- TODO(messages ссылается на шаблонную таблицу message_templates)
-- create table messages (
--     id                      bigserial                   not null,
--     message_template_id     bigint                      not null,
--     telegram_message_id     bigint                      not null,
--     primary key (id),
--     foreign key (message_template_id) references message_templates on delete cascade on update cascade
-- );

create table text_templates (
    text                    character varying (4096)    not null
) inherits (message_templates);

create table poll_templates (
    question                character varying (255)     not null,
    anonymous_voting        boolean                     not null,
    multiple_answers        boolean                     not null
) inherits (message_templates);

create table poll_template_options (
    id                      bigserial                   not null,
    poll_template_id        bigint                      not null,
    text                    character varying (100)     not null,
    ordinal                 bigint                      not null,
    primary key (id),
    foreign key (poll_template_id) references poll_templates on delete cascade on update cascade,
    unique (poll_template_id),
    unique (poll_template_id, ordinal)
);

create table poll_answers (
    id                      bigserial                   not null,
    poll_template_id        bigint                      not null,
    user_id                 bigint                      not null,
    poll_template_option_id bigint                      not null,
    primary key (id),
    foreign key (poll_template_id) references poll_templates on delete cascade on update cascade,
    foreign key (user_id) references users on delete cascade on update cascade,
    foreign key (poll_template_option_id) references poll_template_options on delete cascade on update cascade,
    unique (poll_template_id, user_id, poll_template_option_id)
);

create table media_templates () inherits (message_templates);

create table media_template_files (
    id                      bigserial                   not null,
    media_template_id       bigint                      not null,
    name                    character varying (256)     not null,
    caption                 character varying (4096)    not null,
    primary key (id),
    foreign key (media_template_id) references media_templates on delete cascade on update cascade
);

create table contact_templates (
    phone_number            character varying (16)      not null,
    first_name              character varying (32)      not null
) inherits (message_templates);

create table dice_templates () inherits (message_templates);

-- TODO(определить архитектуру хранения уникальных идентификаторов вложений сообщения)
-- create table poll_messages (
--     telegram_poll_id    text                        not null,
--     poll_schema_id      bigint                      not null,
--     is_complete         boolean                     default false not null,
--     foreign key (poll_schema_id) references poll_schemas on delete cascade on update cascade
-- ) inherits (messages);