using System;
using System.Collections.Generic;
using System.Linq;
using Newtonsoft.Json;

namespace TeamAAS.Localization
{
    /// <summary>
    /// 语言资源包 - 支持使用原文（中文/英文等）作为查找 key
    /// </summary>
    public class LanguageResourcePack
    {
        /// <summary>
        /// 语言代码（如 "zh-CN", "en-US", "ja-JP"）
        /// </summary>
        [JsonProperty("languageCode")]
        public string LanguageCode { get; set; }

        /// <summary>
        /// 语言显示名称（如 "简体中文", "English", "日本語"）
        /// </summary>
        [JsonProperty("languageName")]
        public string LanguageName { get; set; }

        /// <summary>
        /// 版本号
        /// </summary>
        [JsonProperty("version")]
        public string Version { get; set; } = "1.0.0";

        /// <summary>
        /// 作者/维护者
        /// </summary>
        [JsonProperty("author")]
        public string Author { get; set; }

        /// <summary>
        /// 翻译字典 - 使用原文作为 key
        /// 格式: { "原文": "译文" }
        /// 例如: { "相机设备": "Camera Device", "曝光时间(us)": "Exposure Time (us)" }
        /// </summary>
        [JsonProperty("translations")]
        public Dictionary<string, string> Translations { get; set; } = new Dictionary<string, string>();

        /// <summary>
        /// 根据原文获取翻译
        /// </summary>
        /// <param name="originalText">原文（如"相机设备"）</param>
        /// <param name="context">可选的上下文信息（用于调试和日志）</param>
        /// <returns>翻译后的文本，找不到则返回 null</returns>
        public string GetTranslationByOriginalText(string originalText, string context = null)
        {
            if (string.IsNullOrWhiteSpace(originalText))
                return null;

            // 直接查找原文对应的翻译
            if (Translations.TryGetValue(originalText, out var translation))
            {
                return translation;
            }

            // 尝试去除空格后查找（处理可能的格式差异）
            var trimmedText = originalText.Trim();
            if (trimmedText != originalText && Translations.TryGetValue(trimmedText, out translation))
            {
                return translation;
            }

            // 找不到翻译
            return null;
        }

        /// <summary>
        /// 批量添加翻译
        /// </summary>
        public void AddTranslations(Dictionary<string, string> translations)
        {
            if (translations == null)
                return;

            foreach (var kvp in translations)
            {
                Translations[kvp.Key] = kvp.Value;
            }
        }

        /// <summary>
        /// 添加单个翻译
        /// </summary>
        public void AddTranslation(string originalText, string translatedText)
        {
            if (!string.IsNullOrWhiteSpace(originalText) && !string.IsNullOrWhiteSpace(translatedText))
            {
                Translations[originalText] = translatedText;
            }
        }

        /// <summary>
        /// 获取所有原文列表
        /// </summary>
        public List<string> GetAllOriginalTexts()
        {
            return Translations.Keys.ToList();
        }

        /// <summary>
        /// 获取翻译统计信息
        /// </summary>
        public (int Total, int Translated) GetStatistics()
        {
            var total = Translations.Count;
            var translated = Translations.Count(kvp => !string.IsNullOrWhiteSpace(kvp.Value));
            return (total, translated);
        }
    }
}