create table department
(
    department_id varchar(20) not null,
    phone         varchar(20),
    dept_type     varchar(30),
    dept_name     varchar(50) not null unique,
    address       varchar(100),
    primary key (department_id)
);
create table doctor
(
    gender        varchar(10),
    department_id varchar(20),
    doctor_id     varchar(20)  not null,
    employee_no   varchar(20) unique,
    title         varchar(30),
    name          varchar(50)  not null,
    username      varchar(50) unique,
    password_hash varchar(100) not null,
    schedule      varchar(200),
    specialty     varchar(200),
    primary key (doctor_id)
);
create table emr
(
    created_at      timestamp(6),
    updated_at      timestamp(6),
    archived_status varchar(20),
    emr_id          varchar(20) not null,
    patient_id      varchar(20),
    record_id       varchar(20) unique,
    signer          varchar(100),
    content         jsonb,
    primary key (emr_id)
);
create table examination_item
(
    price              numeric(10, 2),
    department_id      varchar(20),
    item_id            varchar(20)  not null,
    item_type          varchar(30),
    item_name          varchar(100) not null,
    applicable_disease varchar(200),
    description        TEXT,
    primary key (item_id)
);
create table examination_result
(
    exam_time         timestamp(6),
    report_time       timestamp(6),
    item_id           varchar(20),
    patient_id        varchar(20),
    record_id         varchar(20),
    report_status     varchar(20),
    request_doctor_id varchar(20),
    result_id         varchar(20) not null,
    view_status       varchar(20),
    abnormal_hint     varchar(50),
    reference_range   varchar(100),
    data              TEXT,
    primary key (result_id)
);
create table medical_record
(
    visit_time          timestamp(6) not null,
    doctor_id           varchar(20),
    patient_id          varchar(20),
    record_id           varchar(20)  not null,
    reservation_id      varchar(20) unique,
    status              varchar(20),
    visit_department_id varchar(20),
    chief_complaint     varchar(200),
    diagnosis           varchar(200),
    advice              TEXT,
    past_history        TEXT,
    present_illness     TEXT,
    primary key (record_id)
);
create table medicine
(
    expire_date      date,
    stock            integer,
    stock_threshold  integer,
    unit_price       numeric(10, 2),
    medicine_id      varchar(20)  not null,
    dosage_form      varchar(30),
    spec             varchar(50),
    manufacturer     varchar(100),
    name             varchar(100) not null,
    contraindication varchar(200),
    description      TEXT,
    primary key (medicine_id)
);
create table patient
(
    age           integer,
    registered_at timestamp(6),
    gender        varchar(10),
    id_card       varchar(18) unique,
    patient_id    varchar(20)  not null,
    phone         varchar(20),
    medical_card  varchar(30),
    name          varchar(50)  not null,
    username      varchar(50) unique,
    password_hash varchar(100) not null,
    primary key (patient_id)
);
create table payment
(
    amount           numeric(10, 2) not null,
    insurance_amount numeric(10, 2),
    self_pay_amount  numeric(10, 2),
    paid_at          timestamp(6),
    business_id      varchar(20),
    business_type    varchar(20),
    patient_id       varchar(20),
    payment_id       varchar(20)    not null,
    status           varchar(20),
    method           varchar(30),
    details          jsonb,
    primary key (payment_id)
);
create table prescription
(
    created_at      timestamp(6),
    doctor_id       varchar(20),
    patient_id      varchar(20),
    prescription_id varchar(20) not null,
    record_id       varchar(20),
    status          varchar(20),
    remark          varchar(200),
    guidance        TEXT,
    primary key (prescription_id)
);
create table prescription_detail
(
    quantity        integer,
    detail_id       varchar(20) not null,
    medicine_id     varchar(20),
    prescription_id varchar(20),
    dose            varchar(30),
    duration        varchar(30),
    frequency       varchar(30),
    timing_hint     varchar(50),
    primary key (detail_id)
);
create table reservation
(
    reservation_date date        not null,
    cancel_time      timestamp(6),
    department_id    varchar(20),
    doctor_id        varchar(20),
    patient_id       varchar(20),
    reservation_id   varchar(20) not null,
    reservation_type varchar(20),
    status           varchar(20) not null,
    channel          varchar(30),
    timeslot         varchar(30) not null,
    reschedule_log   TEXT,
    primary key (reservation_id)
);
alter table if exists doctor add constraint FK75x47tyyeco3xj4cmlhj8v6ta foreign key (department_id) references department;
alter table if exists emr add constraint FKavap0qdm6nen0m7ni56886tdk foreign key (record_id) references medical_record;
alter table if exists emr add constraint FKjky6fib8ygnqxp8ksx1v2pn5c foreign key (patient_id) references patient;
alter table if exists examination_item add constraint FKs9vqfpmu12uxg9q4jgvbkiden foreign key (department_id) references department;
alter table if exists examination_result add constraint FKigjygc2wxytikb59fjgn6gynq foreign key (item_id) references examination_item;
alter table if exists examination_result add constraint FKhrbbffp9vgoke6ef8dl2nywo7 foreign key (record_id) references medical_record;
alter table if exists examination_result add constraint FKd8d66gm6uv0a0tl0j4016b7g foreign key (patient_id) references patient;
alter table if exists examination_result add constraint FKat5uar9yuqny0ssjn56wr35qh foreign key (request_doctor_id) references doctor;
alter table if exists medical_record add constraint FKmommgymv6rayvbje0hp4c6g8w foreign key (doctor_id) references doctor;
alter table if exists medical_record add constraint FKt0lf3feuiurr73bpln2n6x0v foreign key (patient_id) references patient;
alter table if exists medical_record add constraint FKoob1ft0iq1dkhp4590kx26874 foreign key (reservation_id) references reservation;
alter table if exists medical_record add constraint FK963d8pucvml6d2utcu0bo8qrh foreign key (visit_department_id) references department;
alter table if exists payment add constraint FK8t7hyujfhrl2jneu9jayv89tq foreign key (patient_id) references patient;
alter table if exists prescription add constraint FK1ppr8greedyrey8nchpr0v4dn foreign key (doctor_id) references doctor;
alter table if exists prescription add constraint FK1omitb6d3jfxbtcl9h3ufpvpu foreign key (record_id) references medical_record;
alter table if exists prescription add constraint FKqrlh184tfvdi95erwl65p4xj3 foreign key (patient_id) references patient;
alter table if exists prescription_detail add constraint FKik2mm986ygebo4kq2kvl3hcdu foreign key (medicine_id) references medicine;
alter table if exists prescription_detail add constraint FKdq2yagbksdomo6t1o1b8g3poe foreign key (prescription_id) references prescription;
alter table if exists reservation add constraint FK4aescfu1w2acmdn04t0kfqnmp foreign key (department_id) references department;
alter table if exists reservation add constraint FKmh96fg24x7cdhex42l051fmhp foreign key (doctor_id) references doctor;
alter table if exists reservation add constraint FKrrjvkskqqxgliwmqgbl3ijc4n foreign key (patient_id) references patient;