//go:build integration

package user_test

import (
	"context"
	"encoding/json"
	"testing"
	"time"

	"github.com/food-ai/backend/internal/testutil"
	"github.com/food-ai/backend/internal/domain/user"
)

func TestRepository_UpsertByFirebaseUID_Insert(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	u, upsertError := repo.UpsertByFirebaseUID(ctx, "fb-123", "test@example.com", "Test User", "https://avatar.url")
	if upsertError != nil {
		t.Fatalf("unexpected error: %v", upsertError)
	}
	if u.FirebaseUID != "fb-123" {
		t.Errorf("expected fb-123, got %s", u.FirebaseUID)
	}
	if u.Email != "test@example.com" {
		t.Errorf("expected test@example.com, got %s", u.Email)
	}
	if u.Plan != "free" {
		t.Errorf("expected free, got %s", u.Plan)
	}
}

func TestRepository_UpsertByFirebaseUID_Update(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	_, _ = repo.UpsertByFirebaseUID(ctx, "fb-123", "old@example.com", "Old Name", "")
	u, upsertError := repo.UpsertByFirebaseUID(ctx, "fb-123", "new@example.com", "New Name", "https://new-avatar.url")
	if upsertError != nil {
		t.Fatalf("unexpected error: %v", upsertError)
	}
	if u.Email != "new@example.com" {
		t.Errorf("expected new email, got %s", u.Email)
	}
	// Name should not be overwritten if already set
	if u.Name != "Old Name" {
		t.Errorf("expected name to be preserved as 'Old Name', got %s", u.Name)
	}
}

func TestRepository_GetByID(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-get", "get@example.com", "Get User", "")
	u, getError := repo.GetByID(ctx, created.ID)
	if getError != nil {
		t.Fatalf("unexpected error: %v", getError)
	}
	if u.ID != created.ID {
		t.Errorf("expected %s, got %s", created.ID, u.ID)
	}
}

func TestRepository_GetByID_NotFound(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	_, getError := repo.GetByID(ctx, "00000000-0000-0000-0000-000000000000")
	if getError == nil {
		t.Fatal("expected error for non-existent user")
	}
}

func TestRepository_Update(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-upd", "upd@example.com", "Update User", "")
	height := 180
	u, updateError := repo.Update(ctx, created.ID, user.UpdateProfileRequest{HeightCM: &height})
	if updateError != nil {
		t.Fatalf("unexpected error: %v", updateError)
	}
	if u.HeightCM == nil || *u.HeightCM != 180 {
		t.Errorf("expected height 180, got %v", u.HeightCM)
	}
}

func TestRepository_Update_MultipleFields(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-multi", "multi@example.com", "Multi User", "")
	height := 175
	weight := 70.5
	dob := "2001-03-09"
	gender := "male"
	activity := "moderate"
	goal := "maintain"
	u, updateError := repo.Update(ctx, created.ID, user.UpdateProfileRequest{
		HeightCM:    &height,
		WeightKG:    &weight,
		DateOfBirth: &dob,
		Gender:      &gender,
		Activity:    &activity,
		Goal:        &goal,
	})
	if updateError != nil {
		t.Fatalf("unexpected error: %v", updateError)
	}
	if u.HeightCM == nil || *u.HeightCM != 175 {
		t.Errorf("expected 175, got %v", u.HeightCM)
	}
	if u.WeightKG == nil || *u.WeightKG != 70.5 {
		t.Errorf("expected 70.5, got %v", u.WeightKG)
	}
}

func TestRepository_Update_Preferences(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-prefs", "prefs@example.com", "Prefs User", "")
	prefs := json.RawMessage(`{"cuisines":["russian","asian"]}`)
	u, updateError := repo.Update(ctx, created.ID, user.UpdateProfileRequest{Preferences: &prefs})
	if updateError != nil {
		t.Fatalf("unexpected error: %v", updateError)
	}
	var preferences map[string]interface{}
	json.Unmarshal(u.Preferences, &preferences)
	if preferences["cuisines"] == nil {
		t.Error("expected cuisines in preferences")
	}
}

func TestRepository_SetAndFindRefreshToken(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-token", "token@example.com", "Token User", "")
	setError := repo.SetRefreshToken(ctx, created.ID, "refresh-token-123", time.Now().Add(24*time.Hour))
	if setError != nil {
		t.Fatalf("unexpected error setting token: %v", setError)
	}

	u, findError := repo.FindByRefreshToken(ctx, "refresh-token-123")
	if findError != nil {
		t.Fatalf("unexpected error finding by token: %v", findError)
	}
	if u.ID != created.ID {
		t.Errorf("expected %s, got %s", created.ID, u.ID)
	}
}

func TestRepository_FindByRefreshToken_Expired(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-expired", "expired@example.com", "Expired User", "")
	_ = repo.SetRefreshToken(ctx, created.ID, "expired-token", time.Now().Add(-1*time.Hour))

	_, findError := repo.FindByRefreshToken(ctx, "expired-token")
	if findError == nil {
		t.Fatal("expected error for expired token")
	}
}

func TestRepository_ClearRefreshToken(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-clear", "clear@example.com", "Clear User", "")
	_ = repo.SetRefreshToken(ctx, created.ID, "token-to-clear", time.Now().Add(24*time.Hour))
	clearError := repo.ClearRefreshToken(ctx, created.ID)
	if clearError != nil {
		t.Fatalf("unexpected error: %v", clearError)
	}

	_, findError := repo.FindByRefreshToken(ctx, "token-to-clear")
	if findError == nil {
		t.Fatal("expected error after clearing token")
	}
}

func TestRepository_Update_NoFields(t *testing.T) {
	pool := testutil.SetupTestDB(t)
	repo := user.NewRepository(pool)
	ctx := context.Background()

	created, _ := repo.UpsertByFirebaseUID(ctx, "fb-noop", "noop@example.com", "Noop User", "")
	u, updateError := repo.Update(ctx, created.ID, user.UpdateProfileRequest{})
	if updateError != nil {
		t.Fatalf("unexpected error: %v", updateError)
	}
	if u.ID != created.ID {
		t.Errorf("expected %s, got %s", created.ID, u.ID)
	}
}