/**
 * Commercial bounded context: quotes (ofertas) — the pricing/fidelity/
 * approval core of the legacy system, eden.md module 2. Ported with exact
 * fidelity to the formulas documented there (see apps/api/src/quotes/
 * pricing.ts for the calculation engine itself).
 *
 * `client_registration_id` is added as a plain nullable UUID WITHOUT a
 * foreign key — the Customer 360 module (client_registrations table) is
 * being built in parallel by another agent and doesn't exist yet in this
 * migration's context. The FK is added in a follow-up migration once both
 * land (this mirrors the legacy's own history: client_registration_id was
 * itself added to quotes in a later migration, 1785513008756).
 *
 * `users.can_approve_discount` is added here too (small, single-column
 * change) since it's exclusively needed by the discount-approval rule
 * this migration's quotes table exists to support — eden.md §1.1:
 * `canApproveDiscount(user) = super_admin || (admin && can_approve_discount)`.
 */

exports.shorthands = undefined;

exports.up = (pgm) => {
  pgm.sql(`
    ALTER TABLE users ADD COLUMN can_approve_discount BOOLEAN NOT NULL DEFAULT false;
    COMMENT ON COLUMN users.can_approve_discount IS
      'Business flag (not a role) — an admin can approve a quote''s discount/reduced-fidelity exception only if this is true; super_admin always can, regardless of this flag. eden.md §1.1, §3.3.';

    CREATE SEQUENCE quotes_quote_number_seq START 1;

    CREATE TABLE quotes (
      id                        UUID PRIMARY KEY DEFAULT gen_random_uuid(),
      created_at                TIMESTAMPTZ NOT NULL DEFAULT now(),
      updated_at                TIMESTAMPTZ NOT NULL DEFAULT now(),
      created_by                UUID REFERENCES users(id),
      quote_number              TEXT NOT NULL UNIQUE DEFAULT ('Q-' || to_char(now(), 'YYYY') || '-' || lpad(nextval('quotes_quote_number_seq')::text, 6, '0')),
      reseller_id               UUID NOT NULL REFERENCES resellers(id),
      client_name               TEXT NOT NULL,
      client_company            TEXT,
      client_email              TEXT,
      client_phone              TEXT NOT NULL,
      contract_period           INTEGER NOT NULL DEFAULT 0 CHECK (contract_period IN (0,12,24,36,48)),
      fidelity_period           INTEGER CHECK (fidelity_period IS NULL OR (fidelity_period >= 0 AND fidelity_period <= contract_period)),
      items                     JSONB NOT NULL DEFAULT '[]'::jsonb,
      implementation_fee        NUMERIC(12,2) NOT NULL DEFAULT 0,
      impl_geral                NUMERIC(12,2) NOT NULL DEFAULT 0,
      monthly_total             NUMERIC(12,2) NOT NULL DEFAULT 0,
      contract_total            NUMERIC(12,2) NOT NULL DEFAULT 0,
      proposed_monthly_total    NUMERIC(12,2),
      approval_status           TEXT NOT NULL DEFAULT 'none' CHECK (approval_status IN ('none','pending','approved','rejected')),
      approval_notes            TEXT,
      approved_by_id            UUID REFERENCES users(id),
      notes                     TEXT,
      deal_status               TEXT NOT NULL DEFAULT 'orcamento' CHECK (deal_status IN ('orcamento','fechado','perdido')),
      impl_payment_condition    TEXT NOT NULL DEFAULT 'À vista' CHECK (impl_payment_condition IN ('À vista','1+1','1+2')),
      client_registration_id    UUID
    );
    COMMENT ON TABLE quotes IS
      'Ofertas comerciais — eden.md módulo 2. contract_period é a faixa de preço; fidelity_period é a permanência efetiva quando MENOR que a faixa, só produz efeito legal (vigência/multa) depois de approval_status=approved (eden.md §3.4). client_registration_id referencia client_registrations (Customer 360) sem FK por enquanto — ver comentário no topo desta migration.';
    COMMENT ON COLUMN quotes.client_registration_id IS
      'Setar este campo trava a oferta para edição (exceto super_admin) — eden.md §5.1. FK a ser adicionada em migration futura quando client_registrations existir.';
    COMMENT ON COLUMN quotes.impl_payment_condition IS
      'À vista / 1+1 / 1+2 — progressivo por faixa de valor de implantação, eden.md §7 (paymentConditions.js). Faixas validadas na aplicação, não aqui.';

    CREATE TRIGGER trg_quotes_updated_at BEFORE UPDATE ON quotes
      FOR EACH ROW EXECUTE FUNCTION set_updated_at();

    CREATE INDEX idx_quotes_reseller ON quotes(reseller_id);
    CREATE INDEX idx_quotes_deal_status ON quotes(deal_status);
    CREATE INDEX idx_quotes_created_by ON quotes(created_by);
    CREATE INDEX idx_quotes_client_registration ON quotes(client_registration_id);

    ALTER SEQUENCE quotes_quote_number_seq OWNED BY NONE;
  `);
};

exports.down = (pgm) => {
  pgm.sql(`
    DROP TABLE IF EXISTS quotes;
    DROP SEQUENCE IF EXISTS quotes_quote_number_seq;
    ALTER TABLE users DROP COLUMN IF EXISTS can_approve_discount;
  `);
};