package buildapk

import (
	"os"
	"path/filepath"
	"slices"
	"testing"
)

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

	cfg := DefaultConfig()
	want := []string{
		"-target", "android",
		"-buildmode", "exe",
		"-appid", DefaultAppID,
		"-ldflags", DefaultLdflags,
		"-o", DefaultAPKOut,
		"-version", DefaultVersion,
		"-minsdk", DefaultMinSDK,
		"-targetsdk", DefaultTargetSDK,
		"-icon", DefaultIconPath,
		"./cmd/keepassgo",
	}

	if got := cfg.GogioArgs(); !slices.Equal(got, want) {
		t.Fatalf("GogioArgs() = %v, want %v", got, want)
	}
}

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

	root := t.TempDir()
	sdkRoot := filepath.Join(root, "sdk")
	ndkRoot := filepath.Join(root, "ndk")
	javaHome := filepath.Join(root, "java")

	mkdirAll(t, filepath.Join(javaHome, "bin"))
	mkdirAll(t, filepath.Join(sdkRoot, "cmdline-tools", "latest", "bin"))
	mkdirAll(t, filepath.Join(sdkRoot, "platforms", "android-"+DefaultTargetSDK))
	mkdirAll(t, filepath.Join(sdkRoot, "build-tools"))
	mkdirAll(t, ndkRoot)

	makeExecutable(t, filepath.Join(javaHome, "bin", "java"))
	makeExecutable(t, filepath.Join(sdkRoot, "cmdline-tools", "latest", "bin", "sdkmanager"))

	cfg := Config{
		SDKRoot:   sdkRoot,
		NDKRoot:   ndkRoot,
		JavaHome:  javaHome,
		AppID:     DefaultAppID,
		APKOut:    DefaultAPKOut,
		Version:   DefaultVersion,
		Ldflags:   DefaultLdflags,
		MinSDK:    DefaultMinSDK,
		TargetSDK: DefaultTargetSDK,
		IconPath:  filepath.Join(root, "icon.png"),
	}

	if err := os.WriteFile(cfg.IconPath, []byte("png"), 0o644); err != nil {
		t.Fatalf("WriteFile(%q) error = %v", cfg.IconPath, err)
	}

	if err := cfg.Validate(); err != nil {
		t.Fatalf("Validate() error = %v, want nil", err)
	}
}

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

	root := t.TempDir()
	cfg := Config{
		SDKRoot:   filepath.Join(root, "missing-sdk"),
		NDKRoot:   filepath.Join(root, "missing-ndk"),
		JavaHome:  filepath.Join(root, "missing-java"),
		AppID:     DefaultAppID,
		APKOut:    DefaultAPKOut,
		Version:   DefaultVersion,
		Ldflags:   DefaultLdflags,
		MinSDK:    DefaultMinSDK,
		TargetSDK: DefaultTargetSDK,
	}

	if err := cfg.Validate(); err == nil {
		t.Fatal("Validate() error = nil, want missing prerequisite error")
	}
}

func mkdirAll(t *testing.T, path string) {
	t.Helper()
	if err := os.MkdirAll(path, 0o755); err != nil {
		t.Fatalf("MkdirAll(%q) error = %v", path, err)
	}
}

func makeExecutable(t *testing.T, path string) {
	t.Helper()
	if err := os.WriteFile(path, []byte("#!/bin/sh\n"), 0o755); err != nil {
		t.Fatalf("WriteFile(%q) error = %v", path, err)
	}
}