Fulfillment Agreements &
Supply Nodes Monitor

-- Enable UUID extension
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";

-- Define Supplier Types
CREATE TYPE supplier_category AS ENUM ('DROPSHIPPER', 'WHOLESALE', 'MARKETPLACE');

-- TABLE: B2B Supply Nodes (The Core Link Matrix)
CREATE TABLE suppliers (
    id                    UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    name                  VARCHAR(255) NOT NULL,
    b2b_url               VARCHAR(512) NOT NULL,
    category              supplier_category NOT NULL,
    base_compliance_score NUMERIC(5,2) CHECK (base_compliance_score >= 0 AND base_compliance_score <= 100),
    created_at            TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
);

-- TABLE: Retail Storefronts
CREATE TABLE retail_storefronts (
    id            UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    store_name    VARCHAR(255) NOT NULL,
    contact_email VARCHAR(255) UNIQUE NOT NULL,
    is_active     BOOLEAN DEFAULT TRUE,
    created_at    TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
);

-- TABLE: Fulfillment Agreements (Cross-Reference Mapping)
CREATE TABLE fulfillment_agreements (
    id                         UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    store_id                   UUID REFERENCES retail_storefronts(id) ON DELETE CASCADE,
    supplier_id                UUID REFERENCES suppliers(id) ON DELETE CASCADE,
    fulfillment_boundaries     TEXT[] NOT NULL,
    agreement_compliance_score NUMERIC(5,2) CHECK (agreement_compliance_score >= 0 AND agreement_compliance_score <= 100),
    has_unlisted_specs         BOOLEAN DEFAULT FALSE,
    unlisted_specs_details     JSONB,
    last_audited_at            TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
    UNIQUE(store_id, supplier_id)
);

-- INDEXES for fast UI sidebar querying
CREATE INDEX idx_fulfillment_store      ON fulfillment_agreements(store_id);
CREATE INDEX idx_fulfillment_compliance ON fulfillment_agreements(agreement_compliance_score);