-- IHF Phase 8 — Federated Hub Maturity
-- Workplan: IHUB-WP-0008

CREATE TABLE widget_ownerships (
    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
    widget_id UUID NOT NULL REFERENCES widgets(id),
    owner_hub_id UUID NOT NULL REFERENCES hubs(id),
    steward_hub_id UUID REFERENCES hubs(id),
    ownership_type TEXT NOT NULL DEFAULT 'local',
    effective_from TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT now(),
    effective_until TIMESTAMP WITH TIME ZONE,
    notes TEXT,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
);

CREATE INDEX widget_ownerships_widget_id_idx ON widget_ownerships (widget_id);
CREATE INDEX widget_ownerships_owner_hub_idx ON widget_ownerships (owner_hub_id);
CREATE INDEX widget_ownerships_steward_hub_idx ON widget_ownerships (steward_hub_id);

CREATE TABLE hub_routing_rules (
    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
    source_hub_id UUID NOT NULL REFERENCES hubs(id),
    target_hub_id UUID NOT NULL REFERENCES hubs(id),
    match_category TEXT,
    match_widget_type TEXT,
    priority INTEGER NOT NULL DEFAULT 0,
    status TEXT NOT NULL DEFAULT 'inactive',
    notes TEXT,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
);

CREATE INDEX hub_routing_rules_source_idx ON hub_routing_rules (source_hub_id);
CREATE INDEX hub_routing_rules_status_idx ON hub_routing_rules (status);

ALTER TABLE requirement_candidates
    ADD COLUMN routed_to_hub_id UUID REFERENCES hubs(id);

CREATE INDEX requirement_candidates_routed_hub_idx
    ON requirement_candidates (routed_to_hub_id)
    WHERE routed_to_hub_id IS NOT NULL;

CREATE TABLE federated_policy_overlays (
    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
    title TEXT NOT NULL,
    policy_text TEXT NOT NULL,
    applies_to_hubs JSONB NOT NULL DEFAULT '[]',
    enforced_from TIMESTAMP WITH TIME ZONE,
    status TEXT NOT NULL DEFAULT 'draft',
    notes TEXT,
    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
    updated_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
);

CREATE INDEX federated_policy_overlays_status_idx ON federated_policy_overlays (status);

CREATE TABLE stewardship_roles (
    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
    hub_id UUID NOT NULL REFERENCES hubs(id),
    role_name TEXT NOT NULL,
    assigned_to TEXT NOT NULL,
    granted_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
    revoked_at TIMESTAMP WITH TIME ZONE,
    notes TEXT
);

CREATE INDEX stewardship_roles_hub_id_idx ON stewardship_roles (hub_id);
CREATE INDEX stewardship_roles_active_idx ON stewardship_roles (revoked_at)
    WHERE revoked_at IS NULL;

CREATE TABLE archive_records (
    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
    subject_type TEXT NOT NULL,
    subject_id UUID NOT NULL,
    archived_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
    reason TEXT NOT NULL,
    archived_by TEXT NOT NULL,
    lineage_ref TEXT
);

CREATE INDEX archive_records_subject_type_idx ON archive_records (subject_type);
CREATE INDEX archive_records_subject_id_idx ON archive_records (subject_id);

ALTER TABLE widgets
    ADD COLUMN is_archived BOOLEAN NOT NULL DEFAULT FALSE;

CREATE INDEX widgets_is_archived_idx ON widgets (is_archived)
    WHERE is_archived = TRUE;