package gamemanagement

import (
	"strings"
	"unicode"
)

const (
	robotNicknameLanguageArabic  = "arabic"
	robotNicknameLanguageEnglish = "english"
)

var defaultRobotAvatarSources = []string{
	"https://randomuser.me/api/portraits/men/0.jpg",
	"https://randomuser.me/api/portraits/men/1.jpg",
	"https://randomuser.me/api/portraits/men/2.jpg",
	"https://randomuser.me/api/portraits/men/3.jpg",
	"https://randomuser.me/api/portraits/men/4.jpg",
	"https://randomuser.me/api/portraits/men/5.jpg",
	"https://randomuser.me/api/portraits/men/6.jpg",
	"https://randomuser.me/api/portraits/men/7.jpg",
	"https://randomuser.me/api/portraits/men/8.jpg",
	"https://randomuser.me/api/portraits/men/9.jpg",
	"https://randomuser.me/api/portraits/men/10.jpg",
	"https://randomuser.me/api/portraits/men/11.jpg",
	"https://randomuser.me/api/portraits/men/12.jpg",
	"https://randomuser.me/api/portraits/men/13.jpg",
	"https://randomuser.me/api/portraits/men/14.jpg",
	"https://randomuser.me/api/portraits/men/15.jpg",
	"https://randomuser.me/api/portraits/men/16.jpg",
	"https://randomuser.me/api/portraits/men/17.jpg",
	"https://randomuser.me/api/portraits/men/18.jpg",
	"https://randomuser.me/api/portraits/men/19.jpg",
	"https://randomuser.me/api/portraits/men/20.jpg",
	"https://randomuser.me/api/portraits/men/21.jpg",
	"https://randomuser.me/api/portraits/men/22.jpg",
	"https://randomuser.me/api/portraits/men/23.jpg",
	"https://randomuser.me/api/portraits/men/24.jpg",
	"https://randomuser.me/api/portraits/men/25.jpg",
	"https://randomuser.me/api/portraits/men/26.jpg",
	"https://randomuser.me/api/portraits/men/27.jpg",
	"https://randomuser.me/api/portraits/men/28.jpg",
	"https://randomuser.me/api/portraits/men/29.jpg",
	"https://randomuser.me/api/portraits/men/30.jpg",
	"https://randomuser.me/api/portraits/men/31.jpg",
	"https://randomuser.me/api/portraits/men/32.jpg",
	"https://randomuser.me/api/portraits/men/33.jpg",
	"https://randomuser.me/api/portraits/men/34.jpg",
	"https://randomuser.me/api/portraits/men/35.jpg",
	"https://randomuser.me/api/portraits/men/36.jpg",
	"https://randomuser.me/api/portraits/men/37.jpg",
	"https://randomuser.me/api/portraits/men/38.jpg",
	"https://randomuser.me/api/portraits/men/39.jpg",
	"https://randomuser.me/api/portraits/men/40.jpg",
	"https://randomuser.me/api/portraits/men/41.jpg",
	"https://randomuser.me/api/portraits/men/42.jpg",
	"https://randomuser.me/api/portraits/men/43.jpg",
	"https://randomuser.me/api/portraits/men/44.jpg",
	"https://randomuser.me/api/portraits/men/45.jpg",
	"https://randomuser.me/api/portraits/men/46.jpg",
	"https://randomuser.me/api/portraits/men/47.jpg",
	"https://randomuser.me/api/portraits/men/48.jpg",
	"https://randomuser.me/api/portraits/men/49.jpg",
	"https://randomuser.me/api/portraits/men/50.jpg",
	"https://randomuser.me/api/portraits/men/51.jpg",
	"https://randomuser.me/api/portraits/men/52.jpg",
	"https://randomuser.me/api/portraits/men/53.jpg",
	"https://randomuser.me/api/portraits/men/54.jpg",
	"https://randomuser.me/api/portraits/men/55.jpg",
	"https://randomuser.me/api/portraits/men/56.jpg",
	"https://randomuser.me/api/portraits/men/57.jpg",
	"https://randomuser.me/api/portraits/men/58.jpg",
	"https://randomuser.me/api/portraits/men/59.jpg",
	"https://randomuser.me/api/portraits/men/60.jpg",
	"https://randomuser.me/api/portraits/men/61.jpg",
	"https://randomuser.me/api/portraits/men/62.jpg",
	"https://randomuser.me/api/portraits/men/63.jpg",
	"https://randomuser.me/api/portraits/men/64.jpg",
	"https://randomuser.me/api/portraits/men/65.jpg",
	"https://randomuser.me/api/portraits/men/66.jpg",
	"https://randomuser.me/api/portraits/men/67.jpg",
	"https://randomuser.me/api/portraits/men/68.jpg",
	"https://randomuser.me/api/portraits/men/69.jpg",
	"https://randomuser.me/api/portraits/men/70.jpg",
	"https://randomuser.me/api/portraits/men/71.jpg",
	"https://randomuser.me/api/portraits/men/72.jpg",
	"https://randomuser.me/api/portraits/men/73.jpg",
	"https://randomuser.me/api/portraits/men/74.jpg",
	"https://randomuser.me/api/portraits/men/75.jpg",
	"https://randomuser.me/api/portraits/men/76.jpg",
	"https://randomuser.me/api/portraits/men/77.jpg",
	"https://randomuser.me/api/portraits/men/78.jpg",
	"https://randomuser.me/api/portraits/men/79.jpg",
	"https://randomuser.me/api/portraits/men/80.jpg",
	"https://randomuser.me/api/portraits/men/81.jpg",
	"https://randomuser.me/api/portraits/men/82.jpg",
	"https://randomuser.me/api/portraits/men/83.jpg",
	"https://randomuser.me/api/portraits/men/84.jpg",
	"https://randomuser.me/api/portraits/men/85.jpg",
	"https://randomuser.me/api/portraits/men/86.jpg",
	"https://randomuser.me/api/portraits/men/87.jpg",
	"https://randomuser.me/api/portraits/men/88.jpg",
	"https://randomuser.me/api/portraits/men/89.jpg",
	"https://randomuser.me/api/portraits/men/90.jpg",
	"https://randomuser.me/api/portraits/men/91.jpg",
	"https://randomuser.me/api/portraits/men/92.jpg",
	"https://randomuser.me/api/portraits/men/93.jpg",
	"https://randomuser.me/api/portraits/men/94.jpg",
	"https://randomuser.me/api/portraits/men/95.jpg",
	"https://randomuser.me/api/portraits/men/96.jpg",
	"https://randomuser.me/api/portraits/men/97.jpg",
	"https://randomuser.me/api/portraits/men/98.jpg",
	"https://randomuser.me/api/portraits/men/99.jpg",
	"https://randomuser.me/api/portraits/women/0.jpg",
	"https://randomuser.me/api/portraits/women/1.jpg",
	"https://randomuser.me/api/portraits/women/2.jpg",
	"https://randomuser.me/api/portraits/women/3.jpg",
	"https://randomuser.me/api/portraits/women/4.jpg",
	"https://randomuser.me/api/portraits/women/5.jpg",
	"https://randomuser.me/api/portraits/women/6.jpg",
	"https://randomuser.me/api/portraits/women/7.jpg",
	"https://randomuser.me/api/portraits/women/8.jpg",
	"https://randomuser.me/api/portraits/women/9.jpg",
	"https://randomuser.me/api/portraits/women/10.jpg",
	"https://randomuser.me/api/portraits/women/11.jpg",
	"https://randomuser.me/api/portraits/women/12.jpg",
	"https://randomuser.me/api/portraits/women/13.jpg",
	"https://randomuser.me/api/portraits/women/14.jpg",
	"https://randomuser.me/api/portraits/women/15.jpg",
	"https://randomuser.me/api/portraits/women/16.jpg",
	"https://randomuser.me/api/portraits/women/17.jpg",
	"https://randomuser.me/api/portraits/women/18.jpg",
	"https://randomuser.me/api/portraits/women/19.jpg",
	"https://randomuser.me/api/portraits/women/20.jpg",
	"https://randomuser.me/api/portraits/women/21.jpg",
	"https://randomuser.me/api/portraits/women/22.jpg",
	"https://randomuser.me/api/portraits/women/23.jpg",
	"https://randomuser.me/api/portraits/women/24.jpg",
	"https://randomuser.me/api/portraits/women/25.jpg",
	"https://randomuser.me/api/portraits/women/26.jpg",
	"https://randomuser.me/api/portraits/women/27.jpg",
	"https://randomuser.me/api/portraits/women/28.jpg",
	"https://randomuser.me/api/portraits/women/29.jpg",
	"https://randomuser.me/api/portraits/women/30.jpg",
	"https://randomuser.me/api/portraits/women/31.jpg",
	"https://randomuser.me/api/portraits/women/32.jpg",
	"https://randomuser.me/api/portraits/women/33.jpg",
	"https://randomuser.me/api/portraits/women/34.jpg",
	"https://randomuser.me/api/portraits/women/35.jpg",
	"https://randomuser.me/api/portraits/women/36.jpg",
	"https://randomuser.me/api/portraits/women/37.jpg",
	"https://randomuser.me/api/portraits/women/38.jpg",
	"https://randomuser.me/api/portraits/women/39.jpg",
	"https://randomuser.me/api/portraits/women/40.jpg",
	"https://randomuser.me/api/portraits/women/41.jpg",
	"https://randomuser.me/api/portraits/women/42.jpg",
	"https://randomuser.me/api/portraits/women/43.jpg",
	"https://randomuser.me/api/portraits/women/44.jpg",
	"https://randomuser.me/api/portraits/women/45.jpg",
	"https://randomuser.me/api/portraits/women/46.jpg",
	"https://randomuser.me/api/portraits/women/47.jpg",
	"https://randomuser.me/api/portraits/women/48.jpg",
	"https://randomuser.me/api/portraits/women/49.jpg",
	"https://randomuser.me/api/portraits/women/50.jpg",
	"https://randomuser.me/api/portraits/women/51.jpg",
	"https://randomuser.me/api/portraits/women/52.jpg",
	"https://randomuser.me/api/portraits/women/53.jpg",
	"https://randomuser.me/api/portraits/women/54.jpg",
	"https://randomuser.me/api/portraits/women/55.jpg",
	"https://randomuser.me/api/portraits/women/56.jpg",
	"https://randomuser.me/api/portraits/women/57.jpg",
	"https://randomuser.me/api/portraits/women/58.jpg",
	"https://randomuser.me/api/portraits/women/59.jpg",
	"https://randomuser.me/api/portraits/women/60.jpg",
	"https://randomuser.me/api/portraits/women/61.jpg",
	"https://randomuser.me/api/portraits/women/62.jpg",
	"https://randomuser.me/api/portraits/women/63.jpg",
	"https://randomuser.me/api/portraits/women/64.jpg",
	"https://randomuser.me/api/portraits/women/65.jpg",
	"https://randomuser.me/api/portraits/women/66.jpg",
	"https://randomuser.me/api/portraits/women/67.jpg",
	"https://randomuser.me/api/portraits/women/68.jpg",
	"https://randomuser.me/api/portraits/women/69.jpg",
	"https://randomuser.me/api/portraits/women/70.jpg",
	"https://randomuser.me/api/portraits/women/71.jpg",
	"https://randomuser.me/api/portraits/women/72.jpg",
	"https://randomuser.me/api/portraits/women/73.jpg",
	"https://randomuser.me/api/portraits/women/74.jpg",
	"https://randomuser.me/api/portraits/women/75.jpg",
	"https://randomuser.me/api/portraits/women/76.jpg",
	"https://randomuser.me/api/portraits/women/77.jpg",
	"https://randomuser.me/api/portraits/women/78.jpg",
	"https://randomuser.me/api/portraits/women/79.jpg",
	"https://randomuser.me/api/portraits/women/80.jpg",
	"https://randomuser.me/api/portraits/women/81.jpg",
	"https://randomuser.me/api/portraits/women/82.jpg",
	"https://randomuser.me/api/portraits/women/83.jpg",
	"https://randomuser.me/api/portraits/women/84.jpg",
	"https://randomuser.me/api/portraits/women/85.jpg",
	"https://randomuser.me/api/portraits/women/86.jpg",
	"https://randomuser.me/api/portraits/women/87.jpg",
	"https://randomuser.me/api/portraits/women/88.jpg",
	"https://randomuser.me/api/portraits/women/89.jpg",
	"https://randomuser.me/api/portraits/women/90.jpg",
	"https://randomuser.me/api/portraits/women/91.jpg",
	"https://randomuser.me/api/portraits/women/92.jpg",
	"https://randomuser.me/api/portraits/women/93.jpg",
	"https://randomuser.me/api/portraits/women/94.jpg",
	"https://randomuser.me/api/portraits/women/95.jpg",
	"https://randomuser.me/api/portraits/women/96.jpg",
	"https://randomuser.me/api/portraits/women/97.jpg",
	"https://randomuser.me/api/portraits/women/98.jpg",
	"https://randomuser.me/api/portraits/women/99.jpg",
}

var defaultArabicRobotNicknames = []string{
	"أمير",
	"سيف",
	"مالك",
	"فارس",
	"ليث",
	"بدر",
	"ماهر",
	"رامي",
	"كريم",
	"سامي",
	"عمر",
	"يوسف",
	"آدم",
	"ريان",
	"زيد",
	"نور",
	"ياسين",
	"أنس",
	"خالد",
	"طارق",
	"حازم",
	"نادر",
	"وسيم",
	"جواد",
	"مروان",
	"إياد",
	"نبيل",
	"هلال",
	"تميم",
	"سلمان",
	"راشد",
	"جاسم",
	"ماجد",
	"سلطان",
	"عادل",
	"هاني",
	"بلال",
	"يزن",
	"غيث",
	"قصي",
	"سليم",
	"ريان_الليل",
	"نجم",
	"ملك_اللعبة",
	"صقر",
	"ذيب",
	"أسد",
	"الزعيم",
	"القناص",
	"الأسطورة",
	"ظل",
	"برق",
	"رعد",
	"موج",
	"نمر",
	"شهاب",
	"فهد",
	"نايف",
	"نوف",
	"ليان",
	"ريم",
	"سارة",
	"مريم",
	"لينا",
	"هنا",
	"جود",
	"تالا",
	"دانا",
	"لارا",
	"ياسمين",
	"نوران",
	"رؤى",
	"سما",
	"ملك",
	"جنى",
	"آية",
	"ندى",
	"فرح",
	"أمل",
	"هدى",
	"سلمى",
	"ليلى",
	"رنا",
	"نورا",
	"ديما",
	"مايا",
	"ميس",
	"رهف",
	"شهد",
	"غلا",
	"لولو",
	"وردة",
	"قمر",
	"نجمة",
	"لؤلؤة",
	"الملكة",
	"أميرة",
	"روح",
	"حلم",
	"بسمة",
}

var defaultEnglishRobotNicknames = []string{
	"Alex",
	"Jordan",
	"Taylor",
	"Morgan",
	"Riley",
	"Nova",
	"Phoenix",
	"Hunter",
	"Luna",
	"Mia",
	"Noah",
	"Liam",
	"Ava",
	"Emma",
	"Oliver",
	"Elijah",
	"James",
	"William",
	"Benjamin",
	"Lucas",
	"Mason",
	"Ethan",
	"Logan",
	"Jackson",
	"Levi",
	"Sebastian",
	"Mateo",
	"Jack",
	"Owen",
	"Theodore",
	"Aiden",
	"Samuel",
	"Joseph",
	"John",
	"David",
	"Wyatt",
	"Matthew",
	"Luke",
	"Asher",
	"Carter",
	"Julian",
	"Grayson",
	"Leo",
	"Jayden",
	"Gabriel",
	"Isaac",
	"Lincoln",
	"Anthony",
	"Hudson",
	"Dylan",
	"Ezra",
	"Thomas",
	"Charles",
	"Christopher",
	"Jaxon",
	"Maverick",
	"Josiah",
	"Isaiah",
	"Andrew",
	"Elias",
	"Joshua",
	"Nathan",
	"Caleb",
	"Ryan",
	"Adrian",
	"Miles",
	"Eli",
	"Nolan",
	"Christian",
	"Aaron",
	"Cameron",
	"Ezekiel",
	"Colton",
	"Luca",
	"Landon",
	"Hannah",
	"Sofia",
	"Isabella",
	"Amelia",
	"Olivia",
	"Charlotte",
	"Harper",
	"Evelyn",
	"Abigail",
	"Ella",
	"Scarlett",
	"Grace",
	"Chloe",
	"Victoria",
	"Aria",
	"Penelope",
	"Layla",
	"Zoey",
	"Nora",
	"Lily",
	"Ellie",
	"Violet",
	"Aurora",
	"Stella",
	"Hazel",
}

func normalizeRobotNicknameLanguage(value string) string {
	// 后台只开放英语和阿拉伯语两类昵称池；未知值回退英语，避免历史请求继续落到英阿混合池。
	switch strings.ToLower(strings.TrimSpace(value)) {
	case "ar", "arabic", "arab":
		return robotNicknameLanguageArabic
	case "en", "english":
		return robotNicknameLanguageEnglish
	default:
		return robotNicknameLanguageEnglish
	}
}

func robotAccountLanguage(nicknameLanguage string) string {
	// 用户资料里的 language 跟昵称池保持一致，后续客户端或运营筛选机器人时不用再反推昵称字符集。
	if normalizeRobotNicknameLanguage(nicknameLanguage) == robotNicknameLanguageArabic {
		return "ar"
	}
	return "en"
}

func robotNickname(index int, nicknameLanguage string) string {
	// 机器人昵称只从单一语言池取值，不能再拼随机 hex，否则会出现数字、下划线和英阿混排。
	language := normalizeRobotNicknameLanguage(nicknameLanguage)
	if language == robotNicknameLanguageArabic {
		return robotNicknameFromPool(index, defaultArabicRobotNicknames, "لاعب", language)
	}
	return robotNicknameFromPool(index, defaultEnglishRobotNicknames, "Player", language)
}

func robotNicknameFromPool(index int, pool []string, fallback string, language string) string {
	// 前 100 个直接使用预设名；超过预设数量时用同语言两个预设名拼接，保证批量 200 个仍然不带数字后缀。
	if index < 0 {
		index = 0
	}
	if len(pool) == 0 {
		return fallback
	}
	base := sanitizeRobotNickname(pool[index%len(pool)], language)
	if base == "" {
		base = fallback
	}
	if index < len(pool) {
		return base
	}
	next := sanitizeRobotNickname(pool[(index%len(pool)+1)%len(pool)], language)
	if next == "" || next == base {
		next = sanitizeRobotNickname(pool[(index+index/len(pool)+2)%len(pool)], language)
	}
	if next == "" || next == base {
		return base
	}
	return base + next
}

func sanitizeRobotNickname(value string, language string) string {
	// 预设里可能有旧的分隔符或非目标语言字符；写库前统一剔除，保证“英语纯英语、阿拉伯语纯阿拉伯语”。
	var builder strings.Builder
	for _, item := range strings.TrimSpace(value) {
		switch language {
		case robotNicknameLanguageArabic:
			if unicode.Is(unicode.Arabic, item) {
				builder.WriteRune(item)
			}
		default:
			if (item >= 'A' && item <= 'Z') || (item >= 'a' && item <= 'z') {
				builder.WriteRune(item)
			}
		}
	}
	return builder.String()
}

func robotGender(index int, requested string) string {
	requested = strings.TrimSpace(requested)
	if requested != "" {
		return requested
	}
	if index%2 == 0 {
		return "male"
	}
	return "female"
}

func robotAvatarSource(index int, requested []string) string {
	if source := pickString(requested, index); source != "" {
		return source
	}
	if len(defaultRobotAvatarSources) == 0 {
		return ""
	}
	return defaultRobotAvatarSources[index%len(defaultRobotAvatarSources)]
}