CREATE TABLE IF NOT EXISTS consultation_opinion_versions (
    id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
    consultation_id uuid NOT NULL,
    version integer NOT NULL,
    author_id uuid,
    opinion text NOT NULL,
    plan text NOT NULL,
    reason text,
    created_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_consultation_opinion_versions_consultation
    ON consultation_opinion_versions (consultation_id, version);

CREATE TABLE IF NOT EXISTS rule_engine_results (
    id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
    rule_version varchar(64) NOT NULL,
    disease varchar(64) NOT NULL,
    level varchar(16),
    reason text,
    input_snapshot jsonb NOT NULL DEFAULT '{}'::jsonb,
    missing jsonb NOT NULL DEFAULT '[]'::jsonb,
    computed_at timestamptz NOT NULL,
    created_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_rule_engine_results_rule_version
    ON rule_engine_results (rule_version, computed_at);

CREATE TABLE IF NOT EXISTS knowledge_reviews (
    id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
    entity_type varchar(32) NOT NULL,
    entity_id varchar(128) NOT NULL,
    status varchar(16) NOT NULL,
    reviewer_id uuid,
    reviewed_at timestamptz,
    note text,
    created_at timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_knowledge_reviews_entity
    ON knowledge_reviews (entity_type, entity_id);

ALTER TABLE consultations
    ADD COLUMN IF NOT EXISTS assignee_id uuid,
    ADD COLUMN IF NOT EXISTS assigned_at timestamptz,
    ADD COLUMN IF NOT EXISTS accepted_at timestamptz,
    ADD COLUMN IF NOT EXISTS needs_info_at timestamptz,
    ADD COLUMN IF NOT EXISTS sla_deadline timestamptz,
    ADD COLUMN IF NOT EXISTS overdue_at timestamptz,
    ADD COLUMN IF NOT EXISTS last_sla_event_at timestamptz;

UPDATE consultations SET status = 'unassigned' WHERE status = 'pending';
UPDATE consultations SET status = 'assigned' WHERE status = 'consulting';

ALTER TABLE knowledge_articles
    ADD COLUMN IF NOT EXISTS status text NOT NULL DEFAULT 'published',
    ADD COLUMN IF NOT EXISTS source text,
    ADD COLUMN IF NOT EXISTS source_date date,
    ADD COLUMN IF NOT EXISTS expert_confirmed_by uuid;

ALTER TABLE diseases
    ADD COLUMN IF NOT EXISTS status text NOT NULL DEFAULT 'published',
    ADD COLUMN IF NOT EXISTS source text,
    ADD COLUMN IF NOT EXISTS source_date date,
    ADD COLUMN IF NOT EXISTS expert_confirmed_by uuid;