import "github.com/demdxx/gocast/v2"

// Example string casting:
gocast.Str("strasstr")           // "strasstr"
gocast.Str(8)                    // "8"
gocast.Str(8.31)                 // "8.31"
gocast.Str([]byte("one time"))   // "one time"
gocast.Str(nil)                  // ""

// Example number casting:
gocast.Number[int](8)            // 8
gocast.Number[int](8.31)         // 8
gocast.Number[int]("8")          // 8
gocast.Number[int](true)         // 1
gocast.Number[int](false)        // 0

var eight any = 8
gocast.Number[int](eight)        // 8
gocast.Cast[int](eight)          // 8
gocast.Number[int](nil)          // 0

// Number converts only into numeric values (simpler and faster then Cast)
gocast.Number[float32]("2.12")   // 2.12

// Cast converts any type to any other type
gocast.Cast[float64]("2.")       // 2.0

val, err := gocast.TryCast[int]("123.2") // 123, <nil>

res := gocast.Map[string, any](struct{ID int64}{ID: 1}) // map[string]any{"ID": 1}

func sumAll(vals ...any) int {
  var result int = 0
  for _, v := range vals {
    result += gocast.Number[int](v)
  }
  return result
}

type User struct {
  ID    uint64
  Email string
}

var user User

// Set structure values
err := gocast.SetStructFieldValue(&user, "ID", uint64(19))
err := gocast.SetStructFieldValue(&user, "Email", "iamawesome@mail.com")

id, err := gocast.StructFieldValue(user, "ID")
email, err := gocast.StructFieldValue(user, "Email")
fmt.Printf("User: %d - %s", id, email)
// > User: 19 - iamawesome@mail.com

// Define custom type
type Money int64

func (m *Money) CastSet(ctx context.Context, v any) error {
  switch val := v.(type) {
  case Money:
    *m = val
  default:
    *m = Money(gocast.Float64(v) * 1000000)
  }
  return nil
}

// Use custom type in structs
type Car struct {
  ID int64
  Price Money
}

var car Car

// Mapping values into struct
gocast.TryCopyStruct(&car, map[string]any{"ID":1, "Price": "12000.00"})