//go:build test

// Package services contains tests for service listing and eligibility endpoints.
//
// Test Coverage:
//   - ServicesHandler: GET /api/services - List all active services for users
//   - ServicesEligibleForUserHandler: GET /api/services/eligible - List services user is eligible for
//     (based on patch test completion for applicable services)
//
// Patch Test Logic: Services with minimum_age_required > 0 require patch test.
// Users who haven't completed a patch test for a service cannot book it.
// Tests verify eligibility filtering works correctly.
package services

import (
	"bytes"
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"

	"crussell/db"
	"crussell/handlers/user"
	"crussell/mw"
	"crussell/testutils"

	"github.com/go-chi/chi/v5"
)

// createUserWithDOB creates a test user with specified date of birth
func createUserWithDOB(ctx context.Context, q db.Querier, dob string) (string, error) {
	var userID string
	err := q.QueryRow(ctx, `
		INSERT INTO users (n_first_name, n_last_name, email, phone, date_of_birth, password_hash, account_role, account_type)
		VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
		RETURNING id
	`, "Test", "User", "testuser@test.com", "+44770000001", dob, "hash", "verified_email", "email").Scan(&userID)
	return userID, err
}

func makeRequest(handler http.HandlerFunc, method, path string, body interface{}, ctx context.Context) *httptest.ResponseRecorder {
	var req *http.Request
	if body != nil {
		bodyBytes, _ := json.Marshal(body)
		req = httptest.NewRequest(method, path, bytes.NewReader(bodyBytes))
		req.Header.Set("Content-Type", "application/json")
	} else {
		req = httptest.NewRequest(method, path, nil)
	}
	return makeRequestWithContext(handler, req, ctx)
}

// makeRequestWithContext executes request with chi routing context for path params
func makeRequestWithContext(handler http.HandlerFunc, req *http.Request, ctx context.Context) *httptest.ResponseRecorder {
	// Set up chi routing context for path params on top of the tx context
	rctx := chi.NewRouteContext()
	if id, paramName := extractIDFromPath(req.URL.Path); id != "" {
		rctx.URLParams.Add(paramName, id)
	}
	req = req.WithContext(ctx)
	chiCtx := context.WithValue(ctx, chi.RouteCtxKey, rctx)
	req = req.WithContext(chiCtx)

	w := httptest.NewRecorder()
	handler.ServeHTTP(w, req)
	return w
}

// extractIDFromPath extracts the ID from URL paths
func extractIDFromPath(path string) (string, string) {
	patterns := []struct {
		prefix    string
		paramName string
	}{
		{"/api/services/eligible-for/", "user_id"},
		{"/api/admin/services/", "id"},
	}
	for _, p := range patterns {
		if idx := findLastSegment(path, p.prefix); idx >= 0 {
			rest := path[idx:]
			// Handle cases where there are additional path segments after the ID (e.g., /toggle)
			if slashIdx := strings.IndexByte(rest, '/'); slashIdx >= 0 {
				return rest[:slashIdx], p.paramName
			}
			return rest, p.paramName
		}
	}
	return "", ""
}

// makeAdminRequest creates an HTTP request with admin auth context set, suitable for
// testing admin service handlers (ToggleService, CreateServiceHandler, etc.).
func makeAdminRequest(handler http.Handler, method, path string, body interface{}, ctx context.Context) *httptest.ResponseRecorder {
	var req *http.Request
	if body != nil {
		bodyBytes, _ := json.Marshal(body)
		req = httptest.NewRequest(method, path, bytes.NewReader(bodyBytes))
		req.Header.Set("Content-Type", "application/json")
	} else {
		req = httptest.NewRequest(method, path, nil)
	}

	rctx := chi.NewRouteContext()
	if id, paramName := extractIDFromPath(path); id != "" {
		rctx.URLParams.Add(paramName, id)
	}

	ctx = context.WithValue(ctx, chi.RouteCtxKey, rctx)
	ctx = context.WithValue(ctx, mw.UserIDKey, "admin001")
	ctx = context.WithValue(ctx, mw.UserRoleKey, "admin")
	req = req.WithContext(ctx)

	w := httptest.NewRecorder()
	handler.ServeHTTP(w, req)
	return w
}

func findLastSegment(path, prefix string) int {
	for i := len(path); i >= len(prefix); i-- {
		if i > 0 && path[i-len(prefix):i] == prefix {
			return i
		}
	}
	return -1
}

// eligibleForUserCtx injects the authenticated-owner context that the
// B4-fixed ServicesEligibleForUserHandler now requires: the caller must own
// the requested user_id (or be an admin), so tests fetch eligibility as the
// owner themselves.
func eligibleForUserCtx(ctx context.Context, userID string) context.Context {
	ctx = context.WithValue(ctx, mw.UserIDKey, userID)
	ctx = context.WithValue(ctx, mw.UserRoleKey, "verified_email")
	return ctx
}

// TestServices_EligibleForUser_UnauthenticatedDenied verifies the B4 fix: an
// unauthenticated request for an arbitrary user_id is rejected 401 before any
// DOB/age or patch-test data is exposed.
func TestServices_EligibleForUser_UnauthenticatedDenied(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)
	userID, err := createUserWithDOB(ctx, tx, "2000-01-01")
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	w := makeRequestWithContext(handler, req, ctx)

	if w.Code != http.StatusUnauthorized {
		t.Errorf("expected 401 for unauthenticated eligible-for request, got %d. body: %s", w.Code, w.Body.String())
	}
}

// TestServices_EligibleForUser_OtherUserForbidden verifies the B4 ownership
// check: an authenticated non-admin caller requesting ANOTHER user's
// eligibility is rejected 403.
func TestServices_EligibleForUser_OtherUserForbidden(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)
	userID, err := createUserWithDOB(ctx, tx, "2000-01-01")
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	w := makeRequestWithContext(handler, req, eligibleForUserCtx(ctx, "someone-else"))

	if w.Code != http.StatusForbidden {
		t.Errorf("expected 403 for cross-user eligible-for request, got %d. body: %s", w.Code, w.Body.String())
	}
}

// TestServices_EligibleForUser_AdminAllowed verifies the B4 admin carve-out: an
// admin may fetch eligibility for any user (the admin booking flows).
func TestServices_EligibleForUser_AdminAllowed(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)
	userID, err := createUserWithDOB(ctx, tx, "2000-01-01")
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}
	_, err = tx.Exec(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Admin View Service', 'Visible to admins', 25.00, 30, true, 0)
	`)
	if err != nil {
		t.Fatalf("failed to create service: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	adminCtx := context.WithValue(ctx, mw.UserIDKey, "admin001")
	adminCtx = context.WithValue(adminCtx, mw.UserRoleKey, "admin")
	w := makeRequestWithContext(handler, req, adminCtx)

	if w.Code != http.StatusOK {
		t.Errorf("expected 200 for admin eligible-for request, got %d. body: %s", w.Code, w.Body.String())
	}
}

// TestServices_ListAll verifies that listing all services returns only active services,
// filtering out inactive services from the response.
func TestServices_ListAll(t *testing.T) {
	t.Parallel()
	ctx, tx := testutils.SetupTestTx(t)

	_, err := tx.Exec(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES
			('Manicure', 'Basic manicure', 25.00, 30, true, 0),
			('Pedicure', 'Basic pedicure', 30.00, 45, true, 0),
			('Inactive Service', 'Should not appear', 50.00, 60, false, 0)
	`)
	if err != nil {
		t.Fatalf("failed to create services: %v", err)
	}

	handler := http.HandlerFunc(ServicesHandler)
	w := makeRequest(handler, "GET", "/api/services", nil, ctx)

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []ServiceResponse
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if len(response) != 2 {
		t.Errorf("expected 2 services, got %d", len(response))
	}

	found := map[string]bool{}
	for _, s := range response {
		found[s.Name] = true
	}
	if !found["Manicure"] {
		t.Error("expected Manicure in response")
	}
	if !found["Pedicure"] {
		t.Error("expected Pedicure in response")
	}
	if found["Inactive Service"] {
		t.Error("should not include inactive service")
	}
}

// TestServices_EligibleForUser_AgeFilter verifies that eligible services are filtered based on the user's age,
// excluding services with minimum_age_required higher than the user's age.
func TestServices_EligibleForUser_AgeFilter(t *testing.T) {
	t.Parallel()
	ctx, tx := testutils.SetupTestTx(t)

	dob := "2006-01-01" // Age 20 in Feb 2026
	userID, err := createUserWithDOB(ctx, tx, dob)
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	_, err = tx.Exec(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES
			('Under 18 Service', 'For minors', 20.00, 30, true, 16),
			('Adult Only Service', 'For adults only', 50.00, 60, true, 21),
			('No Age Restriction', 'Everyone welcome', 30.00, 45, true, 0)
	`)
	if err != nil {
		t.Fatalf("failed to create services: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	w := makeRequestWithContext(handler, req, eligibleForUserCtx(ctx, userID))

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []ServiceResponse
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if len(response) != 2 {
		t.Errorf("expected 2 services, got %d. Response: %s", len(response), w.Body.String())
	}

	found := map[string]bool{}
	for _, s := range response {
		found[s.Name] = true
	}
	if !found["Under 18 Service"] {
		t.Error("expected Under 18 Service in response (age 20 >= 16)")
	}
	if !found["No Age Restriction"] {
		t.Error("expected No Age Restriction in response")
	}
	if found["Adult Only Service"] {
		t.Error("should not include Adult Only Service (age 20 < 21)")
	}
}

// TestServices_EligibleForUser_PatchTest verifies that services requiring patch tests include a
// PatchTestStatus field set to 'ok' when the user has completed a valid patch test for that service.
func TestServices_EligibleForUser_PatchTest(t *testing.T) {
	t.Parallel()
	ctx, tx := testutils.SetupTestTx(t)

	dob := "2000-01-01"
	userID, err := createUserWithDOB(ctx, tx, dob)
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	// Create a regular service (no patch test required)
	_, err = tx.Exec(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Regular Service', 'No patch test needed', 30.00, 30, true, 0)
	`)
	if err != nil {
		t.Fatalf("failed to create regular service: %v", err)
	}

	// Create a service that will require a patch test
	var patchTestSvcID string
	err = tx.QueryRow(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Patch Test Required', 'Requires patch test', 75.00, 60, true, 0)
		RETURNING id
	`).Scan(&patchTestSvcID)
	if err != nil {
		t.Fatalf("failed to create patch test service: %v", err)
	}

	// Create a patch test that links to this service
	var patchTestID string
	err = tx.QueryRow(ctx, `
		INSERT INTO patch_tests (name, description, notice_duration_hours, expiry_months, service_ids)
		VALUES ('Allergy Test', 'Patch test for gel products', 24, 6, $1)
		RETURNING id
	`, []string{patchTestSvcID}).Scan(&patchTestID)
	if err != nil {
		t.Fatalf("failed to create patch test: %v", err)
	}

	// Create a valid user patch test record (tested 24+ hours ago, within expiry)
	_, err = tx.Exec(ctx, `
		INSERT INTO user_patch_tests (user_id, patch_test_id, tested_at)
		VALUES ($1, $2, NOW() - INTERVAL '48 hours')
	`, userID, patchTestID)
	if err != nil {
		t.Fatalf("failed to create user patch test record: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	w := makeRequestWithContext(handler, req, eligibleForUserCtx(ctx, userID))

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []ServiceResponse
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if len(response) != 2 {
		t.Errorf("expected 2 services, got %d. Response: %s", len(response), w.Body.String())
	}

	var patchTestSvc *ServiceResponse
	var regularSvc *ServiceResponse
	for i := range response {
		if response[i].Name == "Patch Test Required" {
			patchTestSvc = &response[i]
		}
		if response[i].Name == "Regular Service" {
			regularSvc = &response[i]
		}
	}

	if patchTestSvc == nil {
		t.Fatal("Patch Test Required service not found in response")
	}
	if patchTestSvc.PatchTestStatus == nil || *patchTestSvc.PatchTestStatus != "ok" {
		t.Errorf("expected patch test status 'ok', got %v", patchTestSvc.PatchTestStatus)
	}

	if regularSvc == nil {
		t.Fatal("Regular Service not found in response")
	}
	if regularSvc.PatchTestStatus != nil {
		t.Errorf("expected no patch test status for regular service, got %v", regularSvc.PatchTestStatus)
	}
}

// TestContact_ReturnsInfo verifies that the contact info endpoint returns the salon's contact
// details (name, phone, email, role) from the first admin user in the database.
func TestContact_ReturnsInfo(t *testing.T) {
	t.Parallel()
	ctx, tx := testutils.SetupTestTx(t)

	_, err := tx.Exec(ctx, `
		INSERT INTO users (n_first_name, n_last_name, email, phone, date_of_birth, password_hash, account_role, account_type)
		VALUES ('John', 'Smith', 'john@test.com', '+447700000001', '1990-01-01', 'hash', 'admin', 'email')
	`)
	if err != nil {
		t.Fatalf("failed to create admin user: %v", err)
	}

	handler := http.HandlerFunc(user.GetContactInfoHandler)
	w := makeRequest(handler, "GET", "/api/contact", nil, ctx)

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response user.ContactInfo
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if response.Name == "" {
		t.Error("expected name in response")
	}
	if response.Phone == "" {
		t.Error("expected phone in response")
	}
	if response.Email == "" {
		t.Error("expected email in response")
	}
	if response.Role == "" {
		t.Error("expected role in response")
	}
}

// TestAdminServices_Create_Success verifies that an admin can create a new service
// with name, description, price, duration, and minimum age requirements.
func TestAdminServices_Create_Success(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	// Create admin user in DB first
	_, err := tx.Exec(context.Background(), `
		INSERT INTO users (n_first_name, n_last_name, email, phone, date_of_birth, password_hash, account_role, account_type)
		VALUES ('Admin', 'User', 'admin@test.com', '+447123456789', '1990-01-01', 'hash', 'admin', 'email')
	`)
	if err != nil {
		t.Fatalf("failed to create admin user: %v", err)
	}

	handler := http.HandlerFunc(CreateServiceHandler)

	createReq := CreateServiceRequest{
		Name:               "Test Manicure",
		Description:        strPtr("A test manicure service"),
		Price:              35.00,
		DurationMinutes:    45,
		MinimumAgeRequired: 16,
	}

	w := makeAdminRequest(handler, "POST", "/api/admin/services", createReq, ctx)

	if w.Code != http.StatusCreated {
		t.Errorf("expected status 201, got %d. body: %s", w.Code, w.Body.String())
	}

	var response Service
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if response.Name != "Test Manicure" {
		t.Errorf("expected name 'Test Manicure', got %s", response.Name)
	}
	if response.Price != 35.00 {
		t.Errorf("expected price 35.00, got %f", response.Price)
	}
	if !response.IsActive {
		t.Error("expected new service to be active by default")
	}
}

// TestAdminServices_List_All verifies that all services (including inactive) are
// returned when listing from the admin endpoint.
func TestAdminServices_List_All(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	// Insert test services
	_, err := tx.Exec(context.Background(), `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES
			('Manicure', 'Basic manicure', 25.00, 30, true, 0),
			('Pedicure', 'Basic pedicure', 30.00, 45, false, 0),
			('Gel Polish', 'Gel polish service', 40.00, 60, true, 16)
	`)
	if err != nil {
		t.Fatalf("failed to create services: %v", err)
	}

	handler := http.HandlerFunc(AllServicesHandler)
	w := makeAdminRequest(handler, "GET", "/api/admin/services", nil, ctx)

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []Service
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if len(response) != 3 {
		t.Errorf("expected 3 services, got %d", len(response))
	}

	// Verify all services including inactive are returned
	found := map[string]bool{}
	for _, s := range response {
		found[s.Name] = true
	}

	if !found["Manicure"] {
		t.Error("expected Manicure in response")
	}
	if !found["Pedicure"] {
		t.Error("expected Pedicure in response (including inactive)")
	}
	if !found["Gel Polish"] {
		t.Error("expected Gel Polish in response")
	}
}

// TestAdminServices_Toggle verifies that toggling a service switches its
// is_active status on/off.
func TestAdminServices_Toggle(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	// Create a service
	var serviceID string
	err := tx.QueryRow(context.Background(), `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Test Service', 'A test service', 50.00, 60, true, 16)
		RETURNING id
	`).Scan(&serviceID)
	if err != nil {
		t.Fatalf("failed to create service: %v", err)
	}

	handler := http.HandlerFunc(ToggleService)
	w := makeAdminRequest(handler, "PUT", "/api/admin/services/"+serviceID+"/toggle", nil, ctx)

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	// Verify service is now inactive
	var isActive bool
	err = tx.QueryRow(context.Background(), "SELECT is_active FROM services WHERE id = $1", serviceID).Scan(&isActive)
	if err != nil {
		t.Fatalf("failed to check service: %v", err)
	}
	if isActive {
		t.Error("expected service to be inactive after toggle")
	}

	// Toggle again
	w = makeAdminRequest(handler, "PUT", "/api/admin/services/"+serviceID+"/toggle", nil, ctx)
	if w.Code != http.StatusOK {
		t.Errorf("expected status 200 on second toggle, got %d", w.Code)
	}

	// Verify service is active again
	err = tx.QueryRow(context.Background(), "SELECT is_active FROM services WHERE id = $1", serviceID).Scan(&isActive)
	if err != nil {
		t.Fatalf("failed to check service: %v", err)
	}
	if !isActive {
		t.Error("expected service to be active after second toggle")
	}
}

// TestAdminServices_Delete verifies soft-deleting a service sets is_active to false.
func TestAdminServices_Delete(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	// Create a service
	var serviceID string
	err := tx.QueryRow(context.Background(), `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Test Service', 'A test service', 50.00, 60, true, 16)
		RETURNING id
	`).Scan(&serviceID)
	if err != nil {
		t.Fatalf("failed to create service: %v", err)
	}

	handler := http.HandlerFunc(DeleteServiceHandler)
	w := makeAdminRequest(handler, "DELETE", "/api/admin/services/"+serviceID, nil, ctx)

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	// Verify service is soft deleted (is_active = false)
	var isActive bool
	err = tx.QueryRow(context.Background(), "SELECT is_active FROM services WHERE id = $1", serviceID).Scan(&isActive)
	if err != nil {
		t.Fatalf("failed to check service: %v", err)
	}
	if isActive {
		t.Error("expected service to be soft deleted (is_active = false)")
	}
}

// TestAdminServices_NotFound verifies that operations on non-existent service IDs
// return appropriate error statuses.
func TestAdminServices_NotFound(t *testing.T) {
	ctx, _ := testutils.SetupTestTx(t)

	toggleHandler := http.HandlerFunc(ToggleService)
	w := makeAdminRequest(toggleHandler, "PUT", "/api/admin/services/nonexistent-id/toggle", nil, ctx)
	if w.Code != http.StatusNotFound {
		t.Errorf("TOGGLE: expected status 404, got %d. body: %s", w.Code, w.Body.String())
	}

	deleteHandler := http.HandlerFunc(DeleteServiceHandler)
	w = makeAdminRequest(deleteHandler, "DELETE", "/api/admin/services/nonexistent-id", nil, ctx)
	if w.Code != http.StatusNotFound {
		t.Errorf("DELETE: expected status 404, got %d. body: %s", w.Code, w.Body.String())
	}
}

// TestServices_EligibleForUser_PatchTest_Required_NoRecord verifies that a service returns
// patch_test_status = "required" when the user has no user_patch_tests record.
func TestServices_EligibleForUser_PatchTest_Required_NoRecord(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	dob := "2000-01-01"
	userID, err := createUserWithDOB(ctx, tx, dob)
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	// Create a service that requires a patch test
	var svcID string
	err = tx.QueryRow(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Patch Test Needed', 'Requires patch test', 50.00, 30, true, 0)
		RETURNING id
	`).Scan(&svcID)
	if err != nil {
		t.Fatalf("failed to create service: %v", err)
	}

	// Create a patch test linked to this service but do NOT create a user_patch_tests record
	_, err = tx.Exec(ctx, `
		INSERT INTO patch_tests (name, description, notice_duration_hours, expiry_months, service_ids)
		VALUES ('Allergy Test', 'Patch test for gel products', 24, 6, $1)
	`, []string{svcID})
	if err != nil {
		t.Fatalf("failed to create patch test: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	w := makeRequestWithContext(handler, req, eligibleForUserCtx(ctx, userID))

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []ServiceResponse
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if len(response) != 1 {
		t.Errorf("expected 1 service, got %d. Response: %s", len(response), w.Body.String())
	}

	if response[0].PatchTestStatus == nil || *response[0].PatchTestStatus != "required" {
		t.Errorf("expected patch test status 'required', got %v", response[0].PatchTestStatus)
	}
}

// TestServices_EligibleForUser_PatchTest_Required_NoticePeriod verifies that a service returns
// patch_test_status = "required" when the user is within the notice window (tested but not yet eligible).
func TestServices_EligibleForUser_PatchTest_Required_NoticePeriod(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	dob := "2000-01-01"
	userID, err := createUserWithDOB(ctx, tx, dob)
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	var svcID string
	err = tx.QueryRow(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Patch Test Notice', 'Within notice period', 50.00, 30, true, 0)
		RETURNING id
	`).Scan(&svcID)
	if err != nil {
		t.Fatalf("failed to create service: %v", err)
	}

	// Create a patch test with 24-hour notice duration
	var patchTestID string
	err = tx.QueryRow(ctx, `
		INSERT INTO patch_tests (name, description, notice_duration_hours, expiry_months, service_ids)
		VALUES ('Allergy Test', 'Patch test for gel products', 24, 6, $1)
		RETURNING id
	`, []string{svcID}).Scan(&patchTestID)
	if err != nil {
		t.Fatalf("failed to create patch test: %v", err)
	}

	// Create a user_patch_tests record with tested_at = 1 hour ago (within 24h notice window)
	_, err = tx.Exec(ctx, `
		INSERT INTO user_patch_tests (user_id, patch_test_id, tested_at)
		VALUES ($1, $2, NOW() - INTERVAL '1 hour')
	`, userID, patchTestID)
	if err != nil {
		t.Fatalf("failed to create user patch test record: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	w := makeRequestWithContext(handler, req, eligibleForUserCtx(ctx, userID))

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []ServiceResponse
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if len(response) != 1 {
		t.Errorf("expected 1 service, got %d. Response: %s", len(response), w.Body.String())
	}

	if response[0].PatchTestStatus == nil || *response[0].PatchTestStatus != "required" {
		t.Errorf("expected patch test status 'required', got %v", response[0].PatchTestStatus)
	}
}

// TestServices_EligibleForUser_PatchTest_Expired verifies that a service returns
// patch_test_status = "expired" when the user's patch test record is past its expiry date.
func TestServices_EligibleForUser_PatchTest_Expired(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	dob := "2000-01-01"
	userID, err := createUserWithDOB(ctx, tx, dob)
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	var svcID string
	err = tx.QueryRow(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ('Expired Patch Test', 'Patch test expired', 50.00, 30, true, 0)
		RETURNING id
	`).Scan(&svcID)
	if err != nil {
		t.Fatalf("failed to create service: %v", err)
	}

	// Create a patch test with 6-month expiry and no notice period
	var patchTestID string
	err = tx.QueryRow(ctx, `
		INSERT INTO patch_tests (name, description, notice_duration_hours, expiry_months, service_ids)
		VALUES ('Allergy Test', 'Patch test for gel products', 0, 6, $1)
		RETURNING id
	`, []string{svcID}).Scan(&patchTestID)
	if err != nil {
		t.Fatalf("failed to create patch test: %v", err)
	}

	// Create a user_patch_tests record with tested_at = 2 years ago (well beyond 6-month expiry)
	_, err = tx.Exec(ctx, `
		INSERT INTO user_patch_tests (user_id, patch_test_id, tested_at)
		VALUES ($1, $2, NOW() - INTERVAL '2 years')
	`, userID, patchTestID)
	if err != nil {
		t.Fatalf("failed to create user patch test record: %v", err)
	}

	handler := http.HandlerFunc(ServicesEligibleForUserHandler)
	req := httptest.NewRequest("GET", "/api/services/eligible-for/"+userID, nil)
	w := makeRequestWithContext(handler, req, eligibleForUserCtx(ctx, userID))

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []ServiceResponse
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	if len(response) != 1 {
		t.Errorf("expected 1 service, got %d. Response: %s", len(response), w.Body.String())
	}

	if response[0].PatchTestStatus == nil || *response[0].PatchTestStatus != "expired" {
		t.Errorf("expected patch test status 'expired', got %v", response[0].PatchTestStatus)
	}
}

// TestServices_ListAll_NonAdmin_AgeFiltered verifies that the ServicesHandler filters services
// by minimum_age_required for non-admin authenticated users, excluding services the user is
// too young for.
func TestServices_ListAll_NonAdmin_AgeFiltered(t *testing.T) {
	ctx, tx := testutils.SetupTestTx(t)

	// Create user with DOB producing age 20 (born 2006-01-01, in 2026 this is age 20)
	dob := "2006-01-01"
	userID, err := createUserWithDOB(ctx, tx, dob)
	if err != nil {
		t.Fatalf("failed to create user: %v", err)
	}

	// Create services with various minimum_age_required values (no patch tests)
	_, err = tx.Exec(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES
			('All Ages', 'Everyone welcome', 20.00, 30, true, 0),
			('Teen Service', 'Ages 16+', 30.00, 45, true, 16),
			('Adult Only', 'Ages 21+', 50.00, 60, true, 21)
	`)
	if err != nil {
		t.Fatalf("failed to create services: %v", err)
	}

	// Create non-admin authenticated context
	userCtx := context.WithValue(ctx, mw.UserIDKey, userID)
	userCtx = context.WithValue(userCtx, mw.UserRoleKey, "verified_email")

	handler := http.HandlerFunc(ServicesHandler)
	w := makeRequest(handler, "GET", "/api/services", nil, userCtx)

	if w.Code != http.StatusOK {
		t.Errorf("expected status 200, got %d. body: %s", w.Code, w.Body.String())
	}

	var response []ServiceResponse
	if err := json.Unmarshal(w.Body.Bytes(), &response); err != nil {
		t.Fatalf("failed to unmarshal response: %v", err)
	}

	// Should return 2 services: All Ages (min_age=0) and Teen Service (min_age=16)
	// Adult Only (min_age=21) should be excluded (user age 20 < 21)
	if len(response) != 2 {
		t.Errorf("expected 2 services, got %d. Response: %s", len(response), w.Body.String())
	}

	found := map[string]bool{}
	for _, s := range response {
		found[s.Name] = true
	}
	if !found["All Ages"] {
		t.Error("expected All Ages in response")
	}
	if !found["Teen Service"] {
		t.Error("expected Teen Service in response")
	}
	if found["Adult Only"] {
		t.Error("should not include Adult Only service (age 20 < 21)")
	}
}

func strPtr(s string) *string {
	return &s
}