package cmd

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

func rootSetHomeForTest(t *testing.T, dir string) {
	t.Helper()
	if err := os.Setenv("HOME", dir); err != nil {
		t.Fatal(err)
	}
}

func TestExecute(t *testing.T) {
	tests := []struct {
		name      string
		args      []string
		exitCode  int
		wantLevel string
	}{
		{"version", []string{"version"}, 0, ""},
		{"help", []string{}, 0, ""},
		{"debug flag", []string{"version", "--debug"}, 0, "debug"},
		{"verbose flag", []string{"version", "-v"}, 0, "info"},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			tmpDir := t.TempDir()
			rootSetHomeForTest(t, tmpDir)
			oldArgs := os.Args
			os.Args = append([]string{"grokkit"}, tt.args...)
			defer func() { os.Args = oldArgs }()
			Execute()
			if tt.wantLevel != "" {
				logFile := filepath.Join(tmpDir, ".config", "grokkit", "grokkit.log")
				content, err := os.ReadFile(logFile)
				if err != nil {
					t.Error(err)
					return
				}
				str := string(content)
				if !strings.Contains(str, fmt.Sprintf(`"log_level":"%s"`, tt.wantLevel)) {
					t.Errorf("log level not %s:\n%s", tt.wantLevel, str)
				}
			}
		})
	}
}