/// <summary>
/// 分页获取主题日报中的文章
/// </summary>
/// <param name="theme_id"></param>
/// <param name="last_story_id"></param>
/// <returns></returns>
public async Task<List<Story>> GetBeforeThemeStories(string theme_id, string last_story_id)
{
try
{
if (NetworkManager.Current.Network == 4)
{
List<Story> l = await FileHelper.Current.ReadObjectAsync<List<Story>>(theme_id + "_" + last_story_id + "_before_theme_stories.json");
return l;
}
else
{
string url = string.Format(ServiceURL.BeforeThemeStories, theme_id, last_story_id);
JsonObject json = await GetJson(url);
if (json != null)
{
List<Story> stories_list = new List<Story>();
var stories = json["stories"];
Story tmp;
if (stories != null)
{
JsonObject jo;
JsonArray ja = stories.GetArray();
string image_s = "";
WriteableBitmap wb = null; string image_ext = "jpg"; string[] sitem = null;
foreach (var jv in ja)
{
image_s = "";
jo = jv.GetObject();
if (jo.ContainsKey("images"))
{
image_s = jo["images"].GetArray()[0].GetString();
}
tmp = new Story { ID = jo["id"].GetNumber().ToString(), Image = image_s, Title = jo["title"].GetString() };
if (!await FileHelper.Current.CacheExist(tmp.ID + "_story_image." + image_ext) && !tmp.Image.Equals("")) //没有缓存
{
wb = await GetImage(tmp.Image); //下载图片
if (!tmp.Image.Equals(""))
{
sitem = tmp.Image.Split('.');
image_ext = sitem[sitem.Count() - 1];
}
await FileHelper.Current.SaveImageAsync(wb, tmp.ID + "_story_image." + image_ext); //保存图片
}
if (!tmp.Image.Equals(""))
{
tmp.Image = _local_path + "\\images_cache\\" + tmp.ID + "_story_image." + image_ext; //图片路径重定向
}
//tmp.Favorite = DataShareManager.Current.FavoriteList.Contains(tmp.ID) ? true : false; //是否收藏
//tmp.Readed = DataShareManager.Current.ReadedList.Contains(tmp.ID) ? true : false; //是否已读
stories_list.Add(tmp);
}
}
await FileHelper.Current.WriteObjectAsync<List<Story>>(stories_list, theme_id + "_" + last_story_id + "_before_theme_stories.json");
return stories_list;
}
else
{
return null;
}
}
}
catch
{
return null;
}
}
/// <summary>
/// 主题日报中最近文章
/// </summary>
/// <param name="theme_id"></param>
/// <returns></returns>
public async Task<LatestThemeStories> GetLatestThemeStories(string theme_id)
{
try
{
if (NetworkManager.Current.Network == 4)
{
LatestThemeStories lst = await FileHelper.Current.ReadObjectAsync<LatestThemeStories>(theme_id + "_latest_theme_stories.json");
return lst;
}
else
{
string url = string.Format(ServiceURL.ThemeStories, theme_id);
JsonObject json = await GetJson(url);
if (json != null)
{
ObservableCollection<Editor> editors_list = new ObservableCollection<Editor>();
ObservableCollection<Story> stories_list = new ObservableCollection<Story>();
string background = json["background"].GetString();
string description = json["description"].GetString();
string image = json["image"].GetString();
string image_source = json["image_source"].GetString();
string name = json["name"].GetString();
WriteableBitmap wb = null;string image_ext = "jpg";string[] sitem = null;
if (json.ContainsKey("editors"))
{
var editors = json["editors"];
if (editors != null)
{
JsonObject jo;
JsonArray ja = editors.GetArray();
foreach (var jv in ja)
{
jo = jv.GetObject();
Editor tmp = new Editor
{
Avatar = jo.ContainsKey("avatar") ? jo["avatar"].GetString() : "",
Bio = jo.ContainsKey("bio") ? jo["bio"].GetString() : "",
ID = jo["id"].GetNumber().ToString(),
Name = jo["name"].GetString(),
URL = jo.ContainsKey("url") ? jo["url"].GetString() : ""
};
if (!await FileHelper.Current.CacheExist(tmp.ID + "_editor_avatar." + image_ext)) //没有缓存
{
wb = await GetImage(tmp.Avatar); //下载图片
if (!tmp.Avatar.Equals(""))
{
sitem = tmp.Avatar.Split('.');
image_ext = sitem[sitem.Count() - 1];
}
await FileHelper.Current.SaveImageAsync(wb, tmp.ID + "_editor_avatar." + image_ext); //保存图片
}
if(!tmp.Avatar.Equals("")) //重定向路径
{
tmp.Avatar = _local_path + "\\images_cache\\" + tmp.ID + "_editor_avatar." + image_ext;
}
editors_list.Add(tmp);
}
}
}
if (json.ContainsKey("stories"))
{
var stories = json["stories"];
Story tmp;
if (stories != null)
{
JsonObject jo;
JsonArray ja = stories.GetArray();
string image_s = "";
foreach (var jv in ja)
{
image_s = "";
jo = jv.GetObject();
if (jo.ContainsKey("images"))
{
image_s = jo["images"].GetArray()[0].GetString();
}
tmp = new Story { ID = jo["id"].GetNumber().ToString(), Image = image_s, Title = jo["title"].GetString() };
if (!await FileHelper.Current.CacheExist(tmp.ID + "_story_image." + image_ext) && !tmp.Image.Equals("")) //没有缓存
{
wb = await GetImage(tmp.Image); //下载图片
if (!tmp.Image.Equals(""))
{
sitem = tmp.Image.Split('.');
image_ext = sitem[sitem.Count() - 1];
}
await FileHelper.Current.SaveImageAsync(wb, tmp.ID + "_story_image." + image_ext); //保存图片
}
if (!tmp.Image.Equals(""))
{
tmp.Image = _local_path + "\\images_cache\\" + tmp.ID + "_story_image." + image_ext; //图片路径重定向
}
//tmp.Favorite = DataShareManager.Current.FavoriteList.Contains(tmp.ID) ? true : false; //是否收藏
//tmp.Readed = DataShareManager.Current.ReadedList.Contains(tmp.ID) ? true : false; //是否已读
stories_list.Add(tmp);
}
}
}
LatestThemeStories lts = new LatestThemeStories
{
Background = background,
Description = description,
Editors = editors_list,
Image = image,
Image_Source = image_source,
Name = name,
Stories = stories_list
};
await FileHelper.Current.WriteObjectAsync<LatestThemeStories>(lts, theme_id + "_latest_theme_stories.json");
return lts;
}
else
{
return null;
}
}
}
catch
{
return null;
}
}
public void ExchangeReaded(Story story)
{
story.Readed = true;
DataShareManager.Current.UpdateReadeds(_story_id);
}
/// <summary>
/// 主页最近文章
/// </summary>
/// <returns></returns>
public async Task<LatestStories> GetLatestStories()
{
try
{
if (NetworkManager.Current.Network == 4)
{
LatestStories l = await FileHelper.Current.ReadObjectAsync<LatestStories>("latest_stories.json");
return l;
}
else
{
JsonObject json = await GetJson(ServiceURL.LatestStories);
if (json != null)
{
ObservableCollection<Story> stories_list = new ObservableCollection<Story>();
ObservableCollection<Story> top_stories_list = new ObservableCollection<Story>();
Story tmp;
var stories = json["stories"];
WriteableBitmap wb = null; string image_ext = "jpg";string[] sitem = null;
if (stories != null)
{
JsonArray ja = stories.GetArray();
JsonObject jo; string image; bool multiPic = false;
foreach (var j in ja)
{
jo = j.GetObject();
multiPic = jo.ContainsKey("multipic") && (jo["multipic"].GetBoolean());
image = jo["images"].GetArray()[0].GetString();
tmp = new Story { Date = json["date"].GetString(), ID = jo["id"].GetNumber().ToString(), Image = image, Title = jo["title"].GetString(), MultiPic = multiPic };
if (!await FileHelper.Current.CacheExist(tmp.ID + "_story_image." + image_ext)) //没有缓存
{
wb = await GetImage(tmp.Image); //下载图片
if (!tmp.Image.Equals(""))
{
sitem = tmp.Image.Split('.');
image_ext = sitem[sitem.Count() - 1];
}
await FileHelper.Current.SaveImageAsync(wb, tmp.ID + "_story_image." + image_ext); //保存图片
}
if (!tmp.Image.Equals(""))
{
tmp.Image = _local_path + "\\images_cache\\" + tmp.ID + "_story_image." + image_ext; //图片路径重定向
}
//tmp.Favorite = DataShareManager.Current.FavoriteList.Contains(tmp.ID) ? true : false; //是否收藏
//tmp.Readed = DataShareManager.Current.ReadedList.Contains(tmp.ID) ? true : false; //是否已读
stories_list.Add(tmp);
}
}
var top_stories = json["top_stories"];
if (top_stories != null)
{
JsonArray ja = top_stories.GetArray();
JsonObject jo;
foreach (var j in ja)
{
jo = j.GetObject();
tmp = new Story { Date = json["date"].GetString(), Favorite = false, ID = jo["id"].GetNumber().ToString(), Image = jo["image"].GetString(), Title = jo["title"].GetString() };
if (!await FileHelper.Current.CacheExist(tmp.ID + "_story_top_image." + image_ext)) //没有缓存
{
wb = await GetImage(tmp.Image); //下载图片
if (!tmp.Image.Equals(""))
{
sitem = tmp.Image.Split('.');
image_ext = sitem[sitem.Count() - 1];
}
await FileHelper.Current.SaveImageAsync(wb, tmp.ID + "_story_top_image." + image_ext); //保存图片
}
if (!tmp.Image.Equals(""))
{
tmp.Image = _local_path + "\\images_cache\\" + tmp.ID + "_story_top_image." + image_ext; //图片路径重定向
}
top_stories_list.Add(tmp);
}
}
LatestStories ls = new LatestStories { Date = json["date"].GetString(), Stories = stories_list, Top_Stories = top_stories_list };
await FileHelper.Current.WriteObjectAsync<LatestStories>(ls, "latest_stories.json");
return ls;
}
else
{
return null;
}
}
}
catch
{
return null;
}
}
public StoryViewModel(Story story)
{
_story_id = story.ID;
_story = story;
DataShareManager.Current.ShareDataChanged += Current_ShareDataChanged;
Update();
ExchangeReaded(story);
}