/*
 * Bookmark.vala
 * 
 * Represents a bookmarked feed item.
 * Following GNOME HIG naming conventions and Vala/GObject patterns.
 */

/**
 * Bookmark - Represents a bookmarked feed item
 */
public class RSSuper.Bookmark : Object {
    public string id { get; set; }
    public string feed_item_id { get; set; }
    public string title { get; set; }
    public string? link { get; set; }
    public string? description { get; set; }
    public string? content { get; set; }
    public string created_at { get; set; }
    public string? tags { get; set; }
    
    /**
     * Default constructor
     */
    public Bookmark() {
        this.id = "";
        this.feed_item_id = "";
        this.title = "";
        this.created_at = "";
    }
    
    /**
     * Constructor with initial values
     */
    public Bookmark.with_values(string id, string feed_item_id, string title,
                                 string? link = null, string? description = null,
                                 string? content = null, string? created_at = null,
                                 string? tags = null) {
        this.id = id;
        this.feed_item_id = feed_item_id;
        this.title = title;
        this.link = link;
        this.description = description;
        this.content = content;
        this.created_at = created_at ?? DateTime.now_local().format("%Y-%m-%dT%H:%M:%S");
        this.tags = tags;
    }
    
    /**
     * Serialize to JSON string
     */
    public string to_json_string() {
        var sb = new StringBuilder();
        sb.append("{");
        sb.append("\"id\":\"");
        sb.append(this.id);
        sb.append("\",\"feedItemId\":\"");
        sb.append(this.feed_item_id);
        sb.append("\",\"title\":\"");
        sb.append(this.title);
        sb.append("\"");
        
        if (this.link != null) {
            sb.append(",\"link\":\"");
            sb.append(this.link);
            sb.append("\"");
        }
        if (this.description != null) {
            sb.append(",\"description\":\"");
            sb.append(this.description);
            sb.append("\"");
        }
        if (this.content != null) {
            sb.append(",\"content\":\"");
            sb.append(this.content);
            sb.append("\"");
        }
        if (this.created_at != null) {
            sb.append(",\"createdAt\":\"");
            sb.append(this.created_at);
            sb.append("\"");
        }
        if (this.tags != null) {
            sb.append(",\"tags\":\"");
            sb.append(this.tags);
            sb.append("\"");
        }
        
        sb.append("}");
        return sb.str;
    }
    
    /**
     * Deserialize from JSON string
     */
    public static Bookmark? from_json_string(string json_string) {
        var parser = new Json.Parser();
        try {
            if (!parser.load_from_data(json_string)) {
                return null;
            }
        } catch (Error e) {
            warning("Failed to parse JSON: %s", e.message);
            return null;
        }
        
        return from_json_node(parser.get_root());
    }
    
    /**
     * Deserialize from Json.Node
     */
    public static Bookmark? from_json_node(Json.Node node) {
        if (node.get_node_type() != Json.NodeType.OBJECT) {
            return null;
        }
        
        var obj = node.get_object();
        
        if (!obj.has_member("id") || !obj.has_member("feedItemId") || !obj.has_member("title")) {
            return null;
        }
        
        var bookmark = new Bookmark();
        bookmark.id = obj.get_string_member("id");
        bookmark.feed_item_id = obj.get_string_member("feedItemId");
        bookmark.title = obj.get_string_member("title");
        
        if (obj.has_member("link")) {
            bookmark.link = obj.get_string_member("link");
        }
        if (obj.has_member("description")) {
            bookmark.description = obj.get_string_member("description");
        }
        if (obj.has_member("content")) {
            bookmark.content = obj.get_string_member("content");
        }
        if (obj.has_member("createdAt")) {
            bookmark.created_at = obj.get_string_member("createdAt");
        }
        if (obj.has_member("tags")) {
            bookmark.tags = obj.get_string_member("tags");
        }
        
        return bookmark;
    }
    
    /**
     * Equality comparison
     */
    public bool equals(Bookmark? other) {
        if (other == null) {
            return false;
        }
        
        return this.id == other.id &&
               this.feed_item_id == other.feed_item_id &&
               this.title == other.title &&
               this.link == other.link &&
               this.description == other.description &&
               this.content == other.content &&
               this.created_at == other.created_at &&
               this.tags == other.tags;
    }
    
    /**
     * Get a human-readable summary
     */
    public string get_summary() {
        return "[%s] %s".printf(this.feed_item_id, this.title);
    }
}