package ui

import (
	"github.com/jroimartin/gocui"
	"testing"
)

func TestGetKeybinding(t *testing.T) {
	var table = []struct {
		input    string
		key      gocui.Key
		modifier gocui.Modifier
		errStr   string
	}{
		{"ctrl + A", gocui.KeyCtrlA, gocui.ModNone, ""},
		{"Ctrl + a", gocui.KeyCtrlA, gocui.ModNone, ""},
		{"Ctl + a", gocui.KeyCtrlA, gocui.ModNone, ""},
		{"ctl + A", gocui.KeyCtrlA, gocui.ModNone, ""},
		{"f2", gocui.KeyF2, gocui.ModNone, ""},
		{"ctrl +    [", gocui.KeyCtrlLsqBracket, gocui.ModNone, ""},
		{"    ctrl +    ]   ", gocui.KeyCtrlRsqBracket, gocui.ModNone, ""},
		{"ctrl + /", gocui.KeyCtrlSlash, gocui.ModNone, ""},
		{"ctrl + \\", gocui.KeyCtrlBackslash, gocui.ModNone, ""},
		// {"left", gocui.KeyArrowLeft, gocui.ModNone, ""},
		{"PageUp", gocui.KeyPgup, gocui.ModNone, ""},
		{"PgUp", gocui.KeyPgup, gocui.ModNone, ""},
		{"pageup", gocui.KeyPgup, gocui.ModNone, ""},
		{"pgup", gocui.KeyPgup, gocui.ModNone, ""},
		{"tab", gocui.KeyTab, gocui.ModNone, ""},
		{"escape", gocui.KeyEsc, gocui.ModNone, ""},
		{"enter", gocui.KeyEnter, gocui.ModNone, ""},
		{"space", gocui.KeySpace, gocui.ModNone, ""},
		{"ctrl + alt + z", gocui.KeyCtrlZ, gocui.ModAlt, ""},
		{"f22", 0, gocui.ModNone, "unsupported keybinding: KeyF22"},
		{"ctrl + alt + !", 0, gocui.ModAlt, "unsupported keybinding: KeyCtrl! (+1)"},
	}

	for idx, trial := range table {
		actualKey, actualErr := getKeybinding(trial.input)

		if actualKey.value != trial.key {
			t.Errorf("Expected key '%+v' but got '%+v' (trial %d)", trial.key, actualKey, idx)
		}

		if actualKey.modifier != trial.modifier {
			t.Errorf("Expected modifier '%+v' but got '%+v' (trial %d)", trial.modifier, actualKey, idx)
		}

		if actualErr == nil && trial.errStr != "" {
			t.Errorf("Expected error message of '%s' but got no message (trial %d)", trial.errStr, idx)
		} else if actualErr != nil && actualErr.Error() != trial.errStr {
			t.Errorf("Expected error message '%s' but got '%s' (trial %d)", trial.errStr, actualErr.Error(), idx)
		}
	}
}