-- Ticket #194 — Module Cartes SYSTEM (collecte absences/congés/arrêt)
-- Idempotent.

DO $$
BEGIN
  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'card_response_mode_type') THEN
    CREATE TYPE card_response_mode_type AS ENUM (
      'none', 'ack', 'accept_refuse'
    );
  END IF;
  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'card_instance_statut_type') THEN
    CREATE TYPE card_instance_statut_type AS ENUM (
      'ouverte', 'refusee', 'traitee'
    );
  END IF;
  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'card_operation_type') THEN
    CREATE TYPE card_operation_type AS ENUM ('create', 'update');
  END IF;
  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'card_response_action_type') THEN
    CREATE TYPE card_response_action_type AS ENUM (
      'accept', 'refuse', 'ack'
    );
  END IF;
END $$;

CREATE TABLE IF NOT EXISTS card_types (
  code VARCHAR(64) PRIMARY KEY,
  system BOOLEAN NOT NULL DEFAULT true,
  titre VARCHAR(120) NOT NULL,
  emitter_roles TEXT[] NOT NULL,
  recipient_roles TEXT[] NOT NULL,
  audience_resolver VARCHAR(64) NOT NULL,
  response_mode card_response_mode_type NOT NULL,
  retention_days INT NOT NULL DEFAULT 14,
  couleur VARCHAR(32),
  cree_le TIMESTAMPTZ NOT NULL DEFAULT now(),
  modifie_le TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS card_instances (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  type_code VARCHAR(64) NOT NULL REFERENCES card_types(code),
  id_placement UUID NOT NULL
    REFERENCES enfants_assistantes_maternelles(id) ON DELETE CASCADE,
  id_absence UUID REFERENCES absences_garde(id) ON DELETE SET NULL,
  cree_par UUID REFERENCES utilisateurs(id) ON DELETE SET NULL,
  operation card_operation_type NOT NULL DEFAULT 'create',
  statut card_instance_statut_type NOT NULL DEFAULT 'ouverte',
  payload JSONB NOT NULL DEFAULT '{}'::jsonb,
  purge_at TIMESTAMPTZ NOT NULL,
  cree_le TIMESTAMPTZ NOT NULL DEFAULT now(),
  modifie_le TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_card_instances_placement
  ON card_instances (id_placement, statut, cree_le DESC);
CREATE INDEX IF NOT EXISTS idx_card_instances_purge
  ON card_instances (purge_at);
CREATE INDEX IF NOT EXISTS idx_card_instances_absence
  ON card_instances (id_absence)
  WHERE id_absence IS NOT NULL;

CREATE TABLE IF NOT EXISTS card_audience_members (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  id_card UUID NOT NULL REFERENCES card_instances(id) ON DELETE CASCADE,
  id_utilisateur UUID NOT NULL REFERENCES utilisateurs(id) ON DELETE CASCADE,
  role_snapshot VARCHAR(64) NOT NULL,
  is_creator BOOLEAN NOT NULL DEFAULT false,
  UNIQUE (id_card, id_utilisateur)
);

CREATE INDEX IF NOT EXISTS idx_card_audience_user
  ON card_audience_members (id_utilisateur, id_card);

CREATE TABLE IF NOT EXISTS card_responses (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  id_card UUID NOT NULL REFERENCES card_instances(id) ON DELETE CASCADE,
  id_utilisateur UUID NOT NULL REFERENCES utilisateurs(id) ON DELETE CASCADE,
  action card_response_action_type NOT NULL,
  comment TEXT,
  cree_le TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_card_responses_card
  ON card_responses (id_card, cree_le DESC);

-- Seeds SYSTEM
INSERT INTO card_types (
  code, system, titre, emitter_roles, recipient_roles,
  audience_resolver, response_mode, retention_days, couleur
) VALUES
  (
    'absence_enfant', true, 'Absence enfant',
    ARRAY['parent'], ARRAY['assistante_maternelle'],
    'couple_am', 'none', 7, 'peach'
  ),
  (
    'absence_enfant_modif', true, 'Absence enfant modifiée',
    ARRAY['parent'], ARRAY['assistante_maternelle'],
    'couple_am', 'ack', 7, 'peach'
  ),
  (
    'conge_am', true, 'Congé AM',
    ARRAY['assistante_maternelle'], ARRAY['parent'],
    'couple_parents', 'accept_refuse', 14, 'lavender'
  ),
  (
    'arret_maladie_am', true, 'Arrêt maladie AM',
    ARRAY['assistante_maternelle'], ARRAY['parent'],
    'couple_parents', 'ack', 14, 'pink'
  )
ON CONFLICT (code) DO UPDATE SET
  titre = EXCLUDED.titre,
  emitter_roles = EXCLUDED.emitter_roles,
  recipient_roles = EXCLUDED.recipient_roles,
  audience_resolver = EXCLUDED.audience_resolver,
  response_mode = EXCLUDED.response_mode,
  retention_days = EXCLUDED.retention_days,
  couleur = EXCLUDED.couleur,
  modifie_le = now();

COMMENT ON TABLE card_types IS 'Catalogue types de cartes (SYSTEM seeds #194 ; OPTIONNEL plus tard).';
COMMENT ON TABLE card_instances IS 'Bulles / file d’attention — collecte, pas vérité métier absences.';