-- Формы и заявки, редиректы со старых адресов, пользователи админки.

CREATE TABLE forms (
    id          bigserial PRIMARY KEY,
    code        text    NOT NULL UNIQUE,   -- appointment | callback | service_order | review | resume
    title       text    NOT NULL,
    success_text text   NOT NULL DEFAULT '',
    recipients  jsonb   NOT NULL DEFAULT '[]'::jsonb, -- куда слать уведомления
    published   boolean NOT NULL DEFAULT true
);

CREATE TABLE form_fields (
    id        bigserial PRIMARY KEY,
    form_id   bigint NOT NULL REFERENCES forms (id) ON DELETE CASCADE,
    code      text   NOT NULL,
    label     text   NOT NULL,
    type      text   NOT NULL DEFAULT 'text'
        CHECK (type IN ('text', 'textarea', 'phone', 'email', 'date', 'select', 'service', 'doctor', 'rating', 'file')),
    required  boolean NOT NULL DEFAULT false,
    options   jsonb   NOT NULL DEFAULT '[]'::jsonb,
    sort      int     NOT NULL DEFAULT 100,
    UNIQUE (form_id, code)
);

CREATE TABLE leads (
    id          bigserial PRIMARY KEY,
    form_id     bigint REFERENCES forms (id) ON DELETE SET NULL,
    -- разобранные поля, по которым строится поиск и статистика
    name        text        NOT NULL DEFAULT '',
    phone       text        NOT NULL DEFAULT '',
    email       text        NOT NULL DEFAULT '',
    service_id  bigint REFERENCES services (id) ON DELETE SET NULL,
    doctor_id   bigint REFERENCES doctors (id) ON DELETE SET NULL,
    branch_id   bigint REFERENCES branches (id) ON DELETE SET NULL,
    message     text        NOT NULL DEFAULT '',
    -- остальные поля формы как есть
    payload     jsonb       NOT NULL DEFAULT '{}'::jsonb,
    status      text        NOT NULL DEFAULT 'new'
        CHECK (status IN ('new', 'in_progress', 'done', 'spam')),
    comment     text        NOT NULL DEFAULT '',
    page_url    text        NOT NULL DEFAULT '',
    utm         jsonb       NOT NULL DEFAULT '{}'::jsonb,
    ip          inet,
    user_agent  text        NOT NULL DEFAULT '',
    -- согласие на обработку персональных данных фиксируется явно
    consent_at  timestamptz NOT NULL,
    created_at  timestamptz NOT NULL DEFAULT now(),
    updated_at  timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX leads_created_idx ON leads (created_at DESC);
CREATE INDEX leads_status_idx ON leads (status, created_at DESC);
CREATE INDEX leads_phone_idx ON leads (phone);

-- Старые адреса Bitrix, чтобы не потерять позиции в поиске.
CREATE TABLE redirects (
    id        bigserial PRIMARY KEY,
    from_path text    NOT NULL UNIQUE,
    to_path   text    NOT NULL,
    code      int     NOT NULL DEFAULT 301 CHECK (code IN (301, 302)),
    hits      bigint  NOT NULL DEFAULT 0,
    created_at timestamptz NOT NULL DEFAULT now()
);

-- Журнал ненайденных адресов: подсказывает, какие редиректы ещё нужны.
CREATE TABLE not_found_log (
    path       text PRIMARY KEY,
    hits       bigint      NOT NULL DEFAULT 1,
    last_seen  timestamptz NOT NULL DEFAULT now(),
    referer    text        NOT NULL DEFAULT ''
);

CREATE TABLE admin_users (
    id            bigserial PRIMARY KEY,
    email         text        NOT NULL UNIQUE,
    password_hash text        NOT NULL,
    name          text        NOT NULL DEFAULT '',
    role          text        NOT NULL DEFAULT 'editor'
        CHECK (role IN ('owner', 'admin', 'editor', 'registrar')),
    active        boolean     NOT NULL DEFAULT true,
    last_login_at timestamptz,
    created_at    timestamptz NOT NULL DEFAULT now()
);

CREATE TABLE admin_sessions (
    token      text PRIMARY KEY,
    user_id    bigint      NOT NULL REFERENCES admin_users (id) ON DELETE CASCADE,
    expires_at timestamptz NOT NULL,
    ip         inet,
    user_agent text        NOT NULL DEFAULT '',
    created_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX admin_sessions_user_idx ON admin_sessions (user_id);

-- Кто что менял: нужно и для разбора ошибок, и по требованиям к медданным.
CREATE TABLE audit_log (
    id         bigserial PRIMARY KEY,
    user_id    bigint REFERENCES admin_users (id) ON DELETE SET NULL,
    action     text        NOT NULL,       -- create | update | delete | login | view_leads
    entity     text        NOT NULL DEFAULT '',
    entity_id  bigint,
    diff       jsonb       NOT NULL DEFAULT '{}'::jsonb,
    ip         inet,
    created_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX audit_log_created_idx ON audit_log (created_at DESC);