package app

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

func TestDefaultConfigUsesCODEXHomeOverride(t *testing.T) {
	override := filepath.Join(t.TempDir(), "custom-codex")
	t.Setenv("CODEX_HOME", override)

	cfg := DefaultConfig()

	if cfg.CodexHome != override {
		t.Fatalf("CodexHome = %q, want %q", cfg.CodexHome, override)
	}
}

func TestDefaultConfigUsesDockerRuntimeOverrides(t *testing.T) {
	t.Setenv("HTTP_ADDR", "0.0.0.0:18083")
	t.Setenv("STATIC_DIR", "/app/web/dist")
	t.Setenv("WORKSPACE_ROOT", "/app")

	cfg := DefaultConfig()

	if cfg.HTTPAddr != "0.0.0.0:18083" {
		t.Fatalf("HTTPAddr = %q, want %q", cfg.HTTPAddr, "0.0.0.0:18083")
	}
	if cfg.StaticDir != "/app/web/dist" {
		t.Fatalf("StaticDir = %q, want %q", cfg.StaticDir, "/app/web/dist")
	}
	if cfg.WorkspaceRoot != "/app" {
		t.Fatalf("WorkspaceRoot = %q, want %q", cfg.WorkspaceRoot, "/app")
	}
}

func TestDefaultConfigFallsBackToUserCodexHome(t *testing.T) {
	t.Setenv("CODEX_HOME", "")
	home, err := os.UserHomeDir()
	if err != nil {
		t.Fatal(err)
	}

	cfg := DefaultConfig()

	want := filepath.Join(home, ".codex")
	if cfg.CodexHome != want {
		t.Fatalf("CodexHome = %q, want %q", cfg.CodexHome, want)
	}
}