CREATE EXTENSION IF NOT EXISTS "uuid-ossp";

CREATE TABLE IF NOT EXISTS tenants (
    id         UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    slug       TEXT NOT NULL UNIQUE,
    name       TEXT NOT NULL,
    status     TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'suspended', 'pending')),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE TABLE IF NOT EXISTS invites (
    id         UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    tenant_id  UUID NOT NULL REFERENCES tenants(id) ON DELETE CASCADE,
    token      TEXT NOT NULL UNIQUE,
    email      TEXT,
    expires_at TIMESTAMPTZ NOT NULL,
    used_at    TIMESTAMPTZ,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE TABLE IF NOT EXISTS super_admins (
    id            UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    email         TEXT NOT NULL UNIQUE,
    password_hash TEXT NOT NULL,
    created_at    TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE TABLE IF NOT EXISTS platform_settings (
    key        TEXT PRIMARY KEY,
    value      TEXT NOT NULL,
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_invites_token     ON invites(token);
CREATE INDEX IF NOT EXISTS idx_invites_tenant_id ON invites(tenant_id);