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// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package log

import (
	"fmt"
	"time"
)

var statusToColor = map[int][]byte{
	100: ColorBytes(Bold),
	200: ColorBytes(FgGreen),
	300: ColorBytes(FgYellow),
	304: ColorBytes(FgCyan),
	400: ColorBytes(Bold, FgRed),
	401: ColorBytes(Bold, FgMagenta),
	403: ColorBytes(Bold, FgMagenta),
	500: ColorBytes(Bold, BgRed),
}

// ColoredStatus adds colors for HTTP status
func ColoredStatus(status int, s ...string) *ColoredValue {
	color, ok := statusToColor[status]
	if !ok {
		color, ok = statusToColor[(status/100)*100]
	}
	if !ok {
		color = fgBoldBytes
	}
	if len(s) > 0 {
		return NewColoredValueBytes(s[0], &color)
	}
	return NewColoredValueBytes(status, &color)
}

var methodToColor = map[string][]byte{
	"GET":    ColorBytes(FgBlue),
	"POST":   ColorBytes(FgGreen),
	"DELETE": ColorBytes(FgRed),
	"PATCH":  ColorBytes(FgCyan),
	"PUT":    ColorBytes(FgYellow, Faint),
	"HEAD":   ColorBytes(FgBlue, Faint),
}

// ColoredMethod adds colors for HTTP methods on log
func ColoredMethod(method string) *ColoredValue {
	color, ok := methodToColor[method]
	if !ok {
		return NewColoredValueBytes(method, &fgBoldBytes)
	}
	return NewColoredValueBytes(method, &color)
}

var (
	durations = []time.Duration{
		10 * time.Millisecond,
		100 * time.Millisecond,
		1 * time.Second,
		5 * time.Second,
		10 * time.Second,
	}

	durationColors = [][]byte{
		ColorBytes(FgGreen),
		ColorBytes(Bold),
		ColorBytes(FgYellow),
		ColorBytes(FgRed, Bold),
		ColorBytes(BgRed),
	}

	wayTooLong = ColorBytes(BgMagenta)
)

// ColoredTime converts the provided time to a ColoredValue for logging. The duration is always formatted in milliseconds.
func ColoredTime(duration time.Duration) *ColoredValue {
	// the output of duration in Millisecond is more readable:
	// * before: "100.1ms" "100.1μs" "100.1s"
	// * better: "100.1ms" "0.1ms"   "100100.0ms", readers can compare the values at first glance.
	str := fmt.Sprintf("%.1fms", float64(duration.Microseconds())/1000)
	for i, k := range durations {
		if duration < k {
			return NewColoredValueBytes(str, &durationColors[i])
		}
	}
	return NewColoredValueBytes(str, &wayTooLong)
}