package stonelog

import (
	"errors"
	"os/exec"
	"testing"
)

func Test_LogLevelString(t *testing.T) {
	levelTests := []struct {
		level    StoneLevel
		expected string
	}{
		{TRACE, "TRACE"},
		{DEBUG, "DEBUG"},
		{INFO, "INFO"},
		{WARN, "WARN"},
		{ERROR, "ERROR"},
		{FATAL, "FATAL"},
		{PANIC, "PANIC"},
	}

	for _, tt := range levelTests {
		if tt.level.String() != tt.expected {
			t.Errorf("Expected %s, got %s", tt.expected, tt.level.String())
		}
	}
}

func Test_LogLevelColor(t *testing.T) {
	levelTests := []struct {
		level    StoneLevel
		expected string
	}{
		{TRACE, colorWhite},
		{DEBUG, colorCyan},
		{INFO, colorGreen},
		{WARN, colorYellow},
		{ERROR, colorRed},
		{FATAL, colorMagenta},
		{PANIC, colorRed + "\033[1m"},
	}

	for _, tt := range levelTests {
		if tt.level.Color() != tt.expected {
			t.Errorf("Expected %s, got %s", tt.expected, tt.level.Color())
		}
	}
}

func Test_JSONLogs(t *testing.T) {
	InitStoneLog(TRACE, true, false)
	Trace("This is a trace log")
	Debug("This is a debug log")
	Observation("This is an observation log")
	Hypothesis("This is a hypothesis log")
	Failure("This is a failure log")

	SetLogLevel(INFO)
}

func Test_PlainTextLogs(t *testing.T) {
	InitStoneLog(TRACE, false, false)
	Trace("This is a trace log")
	Debug("This is a debug log")
	Observation("This is an observation log")
	Hypothesis("This is a hypothesis log")
	Failure("This is a failure log")

	SetLogLevel(INFO)
}

func Test_MutedPlainTextLogs(t *testing.T) {
	InitStoneLog(ERROR, false, true)

	// This won't change the log level
	SetLogLevel(-1)

	// Following won't appear
	Trace("This is a trace log")
	Debug("This is a debug log")
	Observation("This is an observation log")
	Hypothesis("This is a hypothesis log")

	// Until this one
	Failure("This is a failure log")
}

func Test_PanicPlainTextLogs(t *testing.T) {
	defer func() {
		if r := recover(); r != nil {
			Observation("Recovered from panic: %v", r)
		}
	}()

	InitStoneLog(TRACE, false, true)
	Panic("This is a panic log")
}

func Test_FatalPlainTextLogs(t *testing.T) {
	cmd := exec.Command(
		"go", "run", "./test/main.go",
	)
	cmd.Env = append(cmd.Env, "TEST_FATAL=1")

	err := cmd.Run()

	var exitErr *exec.ExitError
	if errors.As(err, &exitErr) {
		if exitErr.ExitCode() != 1 {
			t.Errorf("Expected exit code 1, got %d", exitErr.ExitCode())
		}
	}
}