package testing

import (
	"context"
	"testing"
	"time"
)

type User struct {
	ID        int64     `db:"id"`
	Name      string    `db:"name"`
	Email     string    `db:"email"`
	Age       int       `db:"age"`
	Balance   float64   `db:"balance"`
	Active    bool      `db:"active"`
	CreatedAt time.Time `db:"created_at"`
}

type Profile struct {
	UserID int    `db:"user_id"`
	Bio    string `db:"bio"`
	Avatar string `db:"avatar"`
}

type NestedUser struct {
	ID      int64  `db:"id"`
	Name    string `db:"name"`
	Profile `db:"---"`
}

func TestStarRows_Orm_Single(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "Alice")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	var user User
	err = rows.Orm(&user)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	if user.Name != "Alice" {
		t.Errorf("Expected name 'Alice', got '%s'", user.Name)
	}

	if user.Email != "alice@example.com" {
		t.Errorf("Expected email 'alice@example.com', got '%s'", user.Email)
	}

	if user.Age != 25 {
		t.Errorf("Expected age 25, got %d", user.Age)
	}

	if user.Balance != 100.50 {
		t.Errorf("Expected balance 100.50, got %f", user.Balance)
	}

	if !user.Active {
		t.Errorf("Expected user to be active")
	}
}

func TestStarRows_Orm_Multiple(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	rows, err := db.Query("SELECT * FROM users ORDER BY name")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	var users []User
	err = rows.Orm(&users)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	if len(users) != 3 {
		t.Fatalf("Expected 3 users, got %d", len(users))
	}

	expectedNames := []string{"Alice", "Bob", "Charlie"}
	for i, user := range users {
		if user.Name != expectedNames[i] {
			t.Errorf("Expected name '%s', got '%s'", expectedNames[i], user.Name)
		}
	}
}

func TestStarRows_Orm_Empty(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "NonExistent")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	var users []User
	err = rows.Orm(&users)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	if len(users) != 0 {
		t.Errorf("Expected 0 users, got %d", len(users))
	}
}

func TestStarRows_Orm_NotPointer(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "Alice")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	var user User
	err = rows.Orm(user) // Not a pointer
	if err == nil {
		t.Errorf("Expected error when passing non-pointer, got nil")
	}
}

func TestStarDB_Insert(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	user := User{
		Name:      "David",
		Email:     "david@example.com",
		Age:       40,
		Balance:   400.00,
		Active:    true,
		CreatedAt: time.Now(),
	}

	result, err := db.Insert(&user, "users", "id")
	if err != nil {
		t.Fatalf("Insert failed: %v", err)
	}

	lastID, err := result.LastInsertId()
	if err != nil {
		t.Fatalf("LastInsertId failed: %v", err)
	}

	if lastID <= 0 {
		t.Errorf("Expected positive last insert ID, got %d", lastID)
	}

	// Verify insertion
	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "David")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	var insertedUser User
	err = rows.Orm(&insertedUser)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	if insertedUser.Name != "David" {
		t.Errorf("Expected name 'David', got '%s'", insertedUser.Name)
	}

	if insertedUser.Email != "david@example.com" {
		t.Errorf("Expected email 'david@example.com', got '%s'", insertedUser.Email)
	}

	if insertedUser.Age != 40 {
		t.Errorf("Expected age 40, got %d", insertedUser.Age)
	}
}

func TestStarDB_InsertContext(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	ctx := context.Background()
	user := User{
		Name:      "Eve",
		Email:     "eve@example.com",
		Age:       28,
		Balance:   250.00,
		Active:    true,
		CreatedAt: time.Now(),
	}

	result, err := db.InsertContext(ctx, &user, "users", "id")
	if err != nil {
		t.Fatalf("InsertContext failed: %v", err)
	}

	affected, err := result.RowsAffected()
	if err != nil {
		t.Fatalf("RowsAffected failed: %v", err)
	}

	if affected != 1 {
		t.Errorf("Expected 1 row affected, got %d", affected)
	}
}

func TestStarDB_Update(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	// First, get the user
	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "Alice")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	var user User
	err = rows.Orm(&user)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	// Update the user
	user.Age = 26
	user.Balance = 150.75

	result, err := db.Update(&user, "users", "id")
	if err != nil {
		t.Fatalf("Update failed: %v", err)
	}

	affected, err := result.RowsAffected()
	if err != nil {
		t.Fatalf("RowsAffected failed: %v", err)
	}

	if affected != 1 {
		t.Errorf("Expected 1 row affected, got %d", affected)
	}

	// Verify the update
	rows2, err := db.Query("SELECT * FROM users WHERE id = ?", user.ID)
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows2.Close()

	var updatedUser User
	err = rows2.Orm(&updatedUser)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	if updatedUser.Age != 26 {
		t.Errorf("Expected age 26, got %d", updatedUser.Age)
	}

	if updatedUser.Balance != 150.75 {
		t.Errorf("Expected balance 150.75, got %f", updatedUser.Balance)
	}
}

func TestStarDB_UpdateContext(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	ctx := context.Background()

	// Get user
	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "Bob")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	var user User
	err = rows.Orm(&user)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	// Update
	user.Active = false
	result, err := db.UpdateContext(ctx, &user, "users", "id")
	if err != nil {
		t.Fatalf("UpdateContext failed: %v", err)
	}

	affected, err := result.RowsAffected()
	if err != nil {
		t.Fatalf("RowsAffected failed: %v", err)
	}

	if affected != 1 {
		t.Errorf("Expected 1 row affected, got %d", affected)
	}
}

func TestStarDB_QueryX(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	user := User{
		Name: "Alice",
	}

	rows, err := db.QueryX(&user, "SELECT * FROM users WHERE name = ?", ":name")
	if err != nil {
		t.Fatalf("QueryX failed: %v", err)
	}
	defer rows.Close()

	if rows.Length() != 1 {
		t.Errorf("Expected 1 row, got %d", rows.Length())
	}

	var result User
	err = rows.Orm(&result)
	if err != nil {
		t.Fatalf("Orm failed: %v", err)
	}

	if result.Name != "Alice" {
		t.Errorf("Expected name 'Alice', got '%s'", result.Name)
	}
}

func TestStarDB_QueryXContext(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	ctx := context.Background()
	user := User{
		Age: 30,
	}

	rows, err := db.QueryXContext(ctx, &user, "SELECT * FROM users WHERE age = ?", ":age")
	if err != nil {
		t.Fatalf("QueryXContext failed: %v", err)
	}
	defer rows.Close()

	if rows.Length() != 1 {
		t.Errorf("Expected 1 row, got %d", rows.Length())
	}
}

func TestStarDB_QueryXS(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	users := []User{
		{Name: "Alice"},
		{Name: "Bob"},
	}

	results, err := db.QueryXS(&users, "SELECT * FROM users WHERE name = ?", ":name")
	if err != nil {
		t.Fatalf("QueryXS failed: %v", err)
	}

	if len(results) != 2 {
		t.Errorf("Expected 2 results, got %d", len(results))
	}

	for i, rows := range results {
		if rows.Length() != 1 {
			t.Errorf("Expected 1 row in result %d, got %d", i, rows.Length())
		}
	}
}

func TestStarDB_ExecX(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	user := User{
		Name: "Alice",
		Age:  99,
	}

	result, err := db.ExecX(&user, "UPDATE users SET age = ? WHERE name = ?", ":age", ":name")
	if err != nil {
		t.Fatalf("ExecX failed: %v", err)
	}

	affected, err := result.RowsAffected()
	if err != nil {
		t.Fatalf("RowsAffected failed: %v", err)
	}

	if affected != 1 {
		t.Errorf("Expected 1 row affected, got %d", affected)
	}

	// Verify
	rows, err := db.Query("SELECT age FROM users WHERE name = ?", "Alice")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	age := rows.Row(0).MustInt("age")
	if age != 99 {
		t.Errorf("Expected age 99, got %d", age)
	}
}

func TestStarDB_ExecXContext(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	ctx := context.Background()
	user := User{
		Name:   "Bob",
		Active: false,
	}

	result, err := db.ExecXContext(ctx, &user, "UPDATE users SET active = ? WHERE name = ?", ":active", ":name")
	if err != nil {
		t.Fatalf("ExecXContext failed: %v", err)
	}

	affected, err := result.RowsAffected()
	if err != nil {
		t.Fatalf("RowsAffected failed: %v", err)
	}

	if affected != 1 {
		t.Errorf("Expected 1 row affected, got %d", affected)
	}
}

func TestStarDB_ExecXS(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	users := []User{
		{Name: "Alice", Age: 26},
		{Name: "Bob", Age: 31},
	}

	results, err := db.ExecXS(&users, "UPDATE users SET age = ? WHERE name = ?", ":age", ":name")
	if err != nil {
		t.Fatalf("ExecXS failed: %v", err)
	}

	if len(results) != 2 {
		t.Errorf("Expected 2 results, got %d", len(results))
	}

	for i, result := range results {
		affected, err := result.RowsAffected()
		if err != nil {
			t.Fatalf("RowsAffected failed for result %d: %v", i, err)
		}
		if affected != 1 {
			t.Errorf("Expected 1 row affected in result %d, got %d", i, affected)
		}
	}
}

func TestStarTx_Insert(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	tx, err := db.Begin()
	if err != nil {
		t.Fatalf("Begin failed: %v", err)
	}

	user := User{
		Name:      "Frank",
		Email:     "frank@example.com",
		Age:       45,
		Balance:   500.00,
		Active:    true,
		CreatedAt: time.Now(),
	}

	result, err := tx.Insert(&user, "users", "id")
	if err != nil {
		tx.Rollback()
		t.Fatalf("Tx.Insert failed: %v", err)
	}

	err = tx.Commit()
	if err != nil {
		t.Fatalf("Commit failed: %v", err)
	}

	lastID, err := result.LastInsertId()
	if err != nil {
		t.Fatalf("LastInsertId failed: %v", err)
	}

	if lastID <= 0 {
		t.Errorf("Expected positive last insert ID, got %d", lastID)
	}

	// Verify
	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "Frank")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	if rows.Length() != 1 {
		t.Errorf("Expected 1 row, got %d", rows.Length())
	}
}

func TestStarTx_Update(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	tx, err := db.Begin()
	if err != nil {
		t.Fatalf("Begin failed: %v", err)
	}

	// Get user
	rows, err := tx.Query("SELECT * FROM users WHERE name = ?", "Alice")
	if err != nil {
		tx.Rollback()
		t.Fatalf("Query failed: %v", err)
	}

	var user User
	err = rows.Orm(&user)
	rows.Close()
	if err != nil {
		tx.Rollback()
		t.Fatalf("Orm failed: %v", err)
	}

	// Update
	user.Age = 27
	result, err := tx.Update(&user, "users", "id")
	if err != nil {
		tx.Rollback()
		t.Fatalf("Tx.Update failed: %v", err)
	}

	err = tx.Commit()
	if err != nil {
		t.Fatalf("Commit failed: %v", err)
	}

	affected, err := result.RowsAffected()
	if err != nil {
		t.Fatalf("RowsAffected failed: %v", err)
	}

	if affected != 1 {
		t.Errorf("Expected 1 row affected, got %d", affected)
	}
}

func TestStarTx_QueryX(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	tx, err := db.Begin()
	if err != nil {
		t.Fatalf("Begin failed: %v", err)
	}
	defer tx.Rollback()

	user := User{
		Name: "Charlie",
	}

	rows, err := tx.QueryX(&user, "SELECT * FROM users WHERE name = ?", ":name")
	if err != nil {
		t.Fatalf("Tx.QueryX failed: %v", err)
	}
	defer rows.Close()

	if rows.Length() != 1 {
		t.Errorf("Expected 1 row, got %d", rows.Length())
	}
}

func TestStarTx_ExecX(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	tx, err := db.Begin()
	if err != nil {
		t.Fatalf("Begin failed: %v", err)
	}

	user := User{
		Name: "Charlie",
		Age:  36,
	}

	result, err := tx.ExecX(&user, "UPDATE users SET age = ? WHERE name = ?", ":age", ":name")
	if err != nil {
		tx.Rollback()
		t.Fatalf("Tx.ExecX failed: %v", err)
	}

	err = tx.Commit()
	if err != nil {
		t.Fatalf("Commit failed: %v", err)
	}

	affected, err := result.RowsAffected()
	if err != nil {
		t.Fatalf("RowsAffected failed: %v", err)
	}

	if affected != 1 {
		t.Errorf("Expected 1 row affected, got %d", affected)
	}
}

func TestStarTx_Rollback(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	tx, err := db.Begin()
	if err != nil {
		t.Fatalf("Begin failed: %v", err)
	}

	user := User{
		Name:      "Rollback User",
		Email:     "rollback@example.com",
		Age:       50,
		Balance:   600.00,
		Active:    true,
		CreatedAt: time.Now(),
	}

	_, err = tx.Insert(&user, "users", "id")
	if err != nil {
		tx.Rollback()
		t.Fatalf("Tx.Insert failed: %v", err)
	}

	// Rollback instead of commit
	err = tx.Rollback()
	if err != nil {
		t.Fatalf("Rollback failed: %v", err)
	}

	// Verify the insert was rolled back
	rows, err := db.Query("SELECT * FROM users WHERE name = ?", "Rollback User")
	if err != nil {
		t.Fatalf("Query failed: %v", err)
	}
	defer rows.Close()

	if rows.Length() != 0 {
		t.Errorf("Expected 0 rows after rollback, got %d", rows.Length())
	}
}

func TestNamedParameterEscape(t *testing.T) {
	db := setupTestDB(t)
	defer db.Close()

	user := User{
		Name: "Alice",
	}

	// Test escaped colon
	rows, err := db.QueryX(&user, "SELECT * FROM users WHERE name = ?", `\:name`)
	if err != nil {
		t.Fatalf("QueryX with escaped parameter failed: %v", err)
	}
	defer rows.Close()

	// Should use literal ":name" string, not the field value
	if rows.Length() != 0 {
		t.Errorf("Expected 0 rows with literal ':name', got %d", rows.Length())
	}
}