package wails_test

import (
	"context"
	"errors"
	"strings"
	"testing"

	"lmika.dev/actions/wails-release/internal/runner"
	"lmika.dev/actions/wails-release/internal/wails"
)

func TestParseInstalledVersion(t *testing.T) {
	cases := map[string]string{
		"Wails CLI v2.11.0":   "v2.11.0",
		"Wails CLI v2.10.1\n": "v2.10.1",
		"Wails v2.9.0":        "v2.9.0",
	}
	for in, want := range cases {
		got, err := wails.ParseCLIVersion([]byte(in))
		if err != nil {
			t.Fatalf("unexpected error parsing %q: %v", in, err)
		}
		if got != want {
			t.Fatalf("input %q: got %q want %q", in, got, want)
		}
	}
}

func TestParseInstalledVersion_Unparseable(t *testing.T) {
	_, err := wails.ParseCLIVersion([]byte("nope"))
	if err == nil {
		t.Fatal("expected error")
	}
}

func TestEnsureCLI_AlreadyInstalledMatchingSkipsInstall(t *testing.T) {
	f := &runner.Fake{}
	f.On("wails", []string{"-v"}).Return([]byte("Wails CLI v2.11.0"), nil)

	err := wails.EnsureCLI(context.Background(), f, "v2.11.0")
	if err != nil {
		t.Fatalf("unexpected: %v", err)
	}

	for _, c := range f.Calls {
		if c.Name == "go" {
			t.Fatalf("expected no `go install`, got call: %+v", c)
		}
	}
}

func TestEnsureCLI_MismatchTriggersInstall(t *testing.T) {
	f := &runner.Fake{}
	f.On("wails", []string{"-v"}).Return([]byte("Wails CLI v2.10.0"), nil)
	f.On("go", []string{"install", "github.com/wailsapp/wails/v2/cmd/wails@v2.11.0"}).Return(nil, nil)

	err := wails.EnsureCLI(context.Background(), f, "v2.11.0")
	if err != nil {
		t.Fatalf("unexpected: %v", err)
	}

	saw := false
	for _, c := range f.Calls {
		if c.Name == "go" && c.Args[0] == "install" && strings.Contains(c.Args[1], "@v2.11.0") {
			saw = true
		}
	}
	if !saw {
		t.Fatal("expected go install call, did not see one")
	}
}

func TestEnsureCLI_NotInstalledTriggersInstall(t *testing.T) {
	f := &runner.Fake{}
	f.On("wails", []string{"-v"}).Return(nil, errors.New("exec: not found"))
	f.On("go", []string{"install", "github.com/wailsapp/wails/v2/cmd/wails@v2.11.0"}).Return(nil, nil)

	err := wails.EnsureCLI(context.Background(), f, "v2.11.0")
	if err != nil {
		t.Fatalf("unexpected: %v", err)
	}
}