package proxmox

import (
	"context"
	"fmt"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestParseDiskSize(t *testing.T) {
	t.Parallel()

	tests := []struct {
		name    string
		size    *string
		want    int
		wantErr bool
	}{
		{"handle null size", nil, 0, false},
		{"parse terabytes", strPtr("2T"), 2048, false},
		{"parse gigabytes", strPtr("2G"), 2, false},
		{"parse megabytes", strPtr("2048M"), 2, false},
		{"error on arbitrary string", strPtr("something"), -1, true},
		{"error on missing unit", strPtr("12345"), -1, true},
	}
	for _, test := range tests {
		tt := test
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()
			got, err := ParseDiskSize(tt.size)
			if (err != nil) != tt.wantErr {
				t.Errorf("ParseDiskSize() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if got != tt.want {
				t.Errorf("ParseDiskSize() got = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestCloseOrLogError(t *testing.T) {
	t.Parallel()
	f := CloseOrLogError(context.Background())

	c := &testCloser{}
	b := &badCloser{}
	func() {
		defer f(c)
		defer f(b)
		assert.Equal(t, false, c.isClosed)
	}()

	assert.Equal(t, true, c.isClosed)
}

type testCloser struct {
	isClosed bool
}

func (t *testCloser) Close() error {
	t.isClosed = true
	return nil
}

type badCloser struct{}

func (t *badCloser) Close() error {
	return fmt.Errorf("bad")
}