package webutil

import (
	"net/url"
	"reflect"
	"testing"
)

func TestFormScannerTypes(t *testing.T) {
	cases := []struct {
		name    string
		form    url.Values
		dest    any
		want    any
		wantErr bool
	}{
		{name: "string", form: url.Values{"f": {"hello"}}, dest: new(string), want: "hello"},
		{name: "int", form: url.Values{"f": {"42"}}, dest: new(int), want: int(42)},
		{name: "int8", form: url.Values{"f": {"8"}}, dest: new(int8), want: int8(8)},
		{name: "int16", form: url.Values{"f": {"16"}}, dest: new(int16), want: int16(16)},
		{name: "int32", form: url.Values{"f": {"32"}}, dest: new(int32), want: int32(32)},
		{name: "int64", form: url.Values{"f": {"64"}}, dest: new(int64), want: int64(64)},
		{name: "uint", form: url.Values{"f": {"1"}}, dest: new(uint), want: uint(1)},
		{name: "uint8", form: url.Values{"f": {"8"}}, dest: new(uint8), want: uint8(8)},
		{name: "uint16", form: url.Values{"f": {"16"}}, dest: new(uint16), want: uint16(16)},
		{name: "uint32", form: url.Values{"f": {"32"}}, dest: new(uint32), want: uint32(32)},
		{name: "uint64", form: url.Values{"f": {"64"}}, dest: new(uint64), want: uint64(64)},
		{name: "float32", form: url.Values{"f": {"1.5"}}, dest: new(float32), want: float32(1.5)},
		{name: "float64", form: url.Values{"f": {"1.5"}}, dest: new(float64), want: float64(1.5)},
		{name: "bool/present", form: url.Values{"f": {""}}, dest: new(bool), want: true},
		{name: "bool/absent", form: url.Values{}, dest: new(bool), want: false},
		{name: "int/invalid", form: url.Values{"f": {"abc"}}, dest: new(int), wantErr: true},
		{name: "unsupported type", form: url.Values{"f": {"x"}}, dest: new([]string), wantErr: true},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			s := NewFormScanner(tc.form)
			s.Scan("f", tc.dest)
			err := s.Error()
			if tc.wantErr != (err != nil) {
				t.Fatalf("error = %v, wantErr %v", err, tc.wantErr)
			}
			if !tc.wantErr {
				got := reflect.ValueOf(tc.dest).Elem().Interface()
				if got != tc.want {
					t.Fatalf("got %v, want %v", got, tc.want)
				}
			}
		})
	}
}