package repository

import (
	"context"
	"fmt"

	"github.com/google/uuid"
	"gorm.io/gorm"
)

// OrganizationSettingRepository reads organization_settings, the key-value settings
// that apply to every outlet of an organization (docs/prd-point-coin.md F2).
type OrganizationSettingRepository interface {
	// Get returns the stored value of a key and whether one is stored. A key that has
	// never been set is not an error: the caller falls back to the key's default.
	Get(ctx context.Context, organizationID uuid.UUID, key string) (string, bool, error)
}

type organizationSettingRepository struct {
	db *gorm.DB
}

func NewOrganizationSettingRepository(db *gorm.DB) OrganizationSettingRepository {
	return &organizationSettingRepository{db: db}
}

func (r *organizationSettingRepository) Get(ctx context.Context, organizationID uuid.UUID, key string) (string, bool, error) {
	var values []*string
	err := DBFromContext(ctx, r.db).WithContext(ctx).
		Table("organization_settings").
		Where("organization_id = ? AND key = ?", organizationID, key).
		Limit(1).
		Pluck("value", &values).Error
	if err != nil {
		return "", false, fmt.Errorf("failed to get organization setting %s: %w", key, err)
	}
	if len(values) == 0 || values[0] == nil {
		return "", false, nil
	}
	return *values[0], true, nil
}