-- This script was generated by the ERD tool in pgAdmin 4.
-- Please log an issue at https://github.com/pgadmin-org/pgadmin4/issues/new/choose if you find any bugs, including reproduction steps.
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
BEGIN;


CREATE TABLE IF NOT EXISTS public.alt_subject
(
    id uuid NOT NULL DEFAULT uuid_generate_v4(),
    name character varying(255) COLLATE pg_catalog."default" NOT NULL,
    subject_id uuid NOT NULL,
    CONSTRAINT alt_subject_pkey PRIMARY KEY (id),
    CONSTRAINT alt_subject_name_key UNIQUE (name)
);



CREATE TABLE IF NOT EXISTS public.entries
(
    id uuid NOT NULL,
    subject_id uuid NOT NULL,
    title text,
    info_entry text,
    paragraph text,
    time_published timestamp without time zone NOT NULL,
    filepath text,
    group_name text,

    CONSTRAINT entries_pkey PRIMARY KEY (id)
);

CREATE TABLE IF NOT EXISTS public.subjects
(
    id uuid NOT NULL DEFAULT uuid_generate_v4(),
    code bigint,
    name character varying(255) COLLATE pg_catalog."default" NOT NULL,
    CONSTRAINT subjects_pkey PRIMARY KEY (id)
);

CREATE TABLE IF NOT EXISTS public."user_subject"
(
    user_id uuid NOT NULL,
    subject_id uuid NOT NULL,
    CONSTRAINT "user-subject_pkey" PRIMARY KEY (user_id, subject_id)
);

CREATE TABLE IF NOT EXISTS public.users
(
    id uuid NOT NULL DEFAULT uuid_generate_v4(),
    email character varying(255) COLLATE pg_catalog."default" NOT NULL,
    password character varying(255) COLLATE pg_catalog."default" NOT NULL,
    reg_time timestamp without time zone NOT NULL DEFAULT CURRENT_TIMESTAMP,
    notification_type character varying(255) COLLATE pg_catalog."default" NOT NULL DEFAULT 'NO_NOTIFICATION'::character varying,
    CONSTRAINT users_pkey PRIMARY KEY (id),
    CONSTRAINT unique_email UNIQUE (email)
);


CREATE TABLE IF NOT EXISTS public.device_tokens
(
    id uuid NOT NULL DEFAULT uuid_generate_v4(),
    user_id uuid NOT NULL,
    fcm_token text NOT NULL,
    updated_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT device_tokens_pkey PRIMARY KEY (id),

    CONSTRAINT fk_device_tokens_user
        FOREIGN KEY (user_id)
        REFERENCES public.users(id)
        ON DELETE CASCADE,

    CONSTRAINT uq_device_tokens_fcm_token
        UNIQUE (fcm_token)
);

CREATE INDEX idx_device_tokens_user_id
    ON public.device_tokens(user_id);





ALTER TABLE IF EXISTS public.alt_subject
    ADD CONSTRAINT alt_subject_subject_id_fkey FOREIGN KEY (subject_id)
    REFERENCES public.subjects (id) MATCH SIMPLE
    ON UPDATE NO ACTION
    ON DELETE CASCADE;


ALTER TABLE IF EXISTS public.entries
    ADD CONSTRAINT subject_for_key FOREIGN KEY (subject_id)
    REFERENCES public.subjects (id) MATCH SIMPLE
    ON UPDATE NO ACTION
    ON DELETE NO ACTION;


ALTER TABLE IF EXISTS public."user-subject"
    ADD CONSTRAINT for_subject FOREIGN KEY (subject_id)
    REFERENCES public.subjects (id) MATCH SIMPLE
    ON UPDATE NO ACTION
    ON DELETE CASCADE;


ALTER TABLE IF EXISTS public."user-subject"
    ADD CONSTRAINT for_user FOREIGN KEY (user_id)
    REFERENCES public.users (id) MATCH SIMPLE
    ON UPDATE NO ACTION
    ON DELETE CASCADE;

END;
