package admin

import (
	"context"
	"errors"

	"github.com/google/uuid"
	"github.com/jackc/pgx/v5"

	"github.com/yuxingu/digital-psychology/apps/api/internal/repository"
)

var ErrCrisisPolicyNotFound = errString("crisis policy not found")

// ListCrisisPolicies returns CrisisPolicy catalog.
func (s *Service) ListCrisisPolicies(ctx context.Context) ([]repository.CrisisPolicyRow, error) {
	items, err := s.Repo.ListCrisisPolicies(ctx)
	if err != nil {
		return nil, err
	}
	if items == nil {
		items = []repository.CrisisPolicyRow{}
	}
	return items, nil
}

// GetCrisisPolicy loads one policy.
func (s *Service) GetCrisisPolicy(ctx context.Context, id uuid.UUID) (*repository.CrisisPolicyRow, error) {
	row, err := s.Repo.GetCrisisPolicy(ctx, id)
	if errors.Is(err, pgx.ErrNoRows) {
		return nil, ErrCrisisPolicyNotFound
	}
	return row, err
}

// EvaluateCrisis runs read-only policy preview.
func (s *Service) EvaluateCrisis(ctx context.Context, text string) ([]repository.CrisisMatch, error) {
	return s.Repo.EvaluateCrisisPolicies(ctx, text)
}