package service

import (
	"errors"
	"regexp"
	"testing"
	"time"

	"github.com/DATA-DOG/go-sqlmock"
	"github.com/wmms/wmms/internal/model"
	"github.com/wmms/wmms/pkg/database"
)

func TestMaterialServiceRejectsInvalidCategory(t *testing.T) {
	db, mock, err := sqlmock.New()
	if err != nil {
		t.Fatalf("open sql mock: %v", err)
	}
	t.Cleanup(func() {
		database.DB = nil
		db.Close()
	})
	database.DB = db

	query := `SELECT EXISTS(
		SELECT 1 FROM material_categories
		WHERE id = ? AND organization_id = ? AND parent_id IS NOT NULL AND status = 'active'
	)`
	mock.ExpectQuery(regexp.QuoteMeta(query)).WithArgs(int64(12), int64(1)).
		WillReturnRows(sqlmock.NewRows([]string{"exists"}).AddRow(false))

	categoryID := int64(12)
	_, err = NewMaterialService().Create(&model.CreateMaterialRequest{
		OrganizationID: 1,
		MaterialCode:   "MAT-001",
		Name:           "轴承",
		CategoryID:     &categoryID,
	}, "tester")
	if !errors.Is(err, ErrInvalidMaterialCategory) {
		t.Fatalf("create error = %v, want ErrInvalidMaterialCategory", err)
	}
	if err := mock.ExpectationsWereMet(); err != nil {
		t.Fatal(err)
	}
}

func TestMaterialServiceTreatsObsoleteMaterialAsInactive(t *testing.T) {
	db, mock, err := sqlmock.New()
	if err != nil {
		t.Fatalf("open sql mock: %v", err)
	}
	t.Cleanup(func() {
		database.DB = nil
		db.Close()
	})
	database.DB = db

	query := `SELECT id, organization_id, material_code, name, material_image, spec, manufacturer_model,
		category_id, base_unit_id, unit, status, version, created_at, updated_at
		FROM materials WHERE id = ?`
	now := time.Date(2026, 9, 20, 9, 0, 0, 0, time.UTC)
	mock.ExpectQuery(regexp.QuoteMeta(query)).WithArgs(int64(7)).WillReturnRows(
		sqlmock.NewRows([]string{"id", "organization_id", "material_code", "name", "material_image", "spec", "manufacturer_model", "category_id", "base_unit_id", "unit", "status", "version", "created_at", "updated_at"}).
			AddRow(7, 1, "MAT-007", "轴承", nil, "6205", nil, 12, 3, "件", "obsolete", 1, now, now),
	)

	active, err := NewMaterialService().IsActive(7)
	if err != nil {
		t.Fatalf("check material activity: %v", err)
	}
	if active {
		t.Fatal("obsolete material must not be active")
	}
	if err := mock.ExpectationsWereMet(); err != nil {
		t.Fatal(err)
	}
}