package commands

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

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

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

	dir := filepath.Join(t.TempDir(), "does-not-exist")

	cmds, err := loadFromSource(commandSource{path: dir, prefix: userCommandPrefix})
	require.NoError(t, err)
	require.Empty(t, cmds)

	// directory must NOT have been created
	_, statErr := os.Stat(dir)
	require.True(t, os.IsNotExist(statErr))
}

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

	dir := t.TempDir()
	require.NoError(t, os.WriteFile(filepath.Join(dir, "hello.md"), []byte("say hello"), 0o644))

	cmds, err := loadFromSource(commandSource{path: dir, prefix: userCommandPrefix})
	require.NoError(t, err)
	require.Len(t, cmds, 1)
	require.Equal(t, "user:hello", cmds[0].ID)
	require.Equal(t, "say hello", cmds[0].Content)
}

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

	existing := t.TempDir()
	require.NoError(t, os.WriteFile(filepath.Join(existing, "cmd.md"), []byte("content"), 0o644))

	missing := filepath.Join(t.TempDir(), "nope")

	cmds, err := loadAll([]commandSource{
		{path: existing, prefix: userCommandPrefix},
		{path: missing, prefix: projectCommandPrefix},
	})
	require.NoError(t, err)
	require.Len(t, cmds, 1)
	require.Equal(t, "user:cmd", cmds[0].ID)
}