<?php
/**
 * 采集节点模型
 * @author 北京迅达科技-许仙 <QQ:1216560669 >
 * @time 2011-11-3 16:42
 * @version 1.0
 */
class Pick_Node_Model extends Model {	
	public $mod;
	private $_ruleInfo;
	
	public function __construct($ruleInfo) {
		parent::__construct();	
		$this->mod = load_model('Pick');
		$this->_ruleInfo = $ruleInfo;
		$this->init();
	}
	
	public function init() {
		// 获取列表页地址
		$this->listUrls = $this->mod->getListUrls($this->listmoreurl, $this->listurl, 
						$this->page_begin, $this->page_end, $this->page_step);
		if (!$this->listUrls) {
			show_msg("没有找到列表页地址, 请检查规则");	
		}
		// 获取列表页地址总数
		$this->totalListUrlsNum = count($this->listUrls);
		// 当前处理到的下标
		$this->pListPage = $this->p_list_page;
		// 当前处理的页数也就是下一个要处理的下标
		$this->nextPage = $this->pListPage + 1;
	}
	
	public function doPickList() {
		// 获取内容页标题和链接
		$this->titleUrls = $this->mod->getUrls($this->list_url_rule, $this->thisUrl(), $this->html(), $this->link_include_word, $this->link_noinclude_word, $this->list_url_join);
		// 总的记录数
		$this->totalTitleUrlsNum = count($this->titleUrls);	
		// 已经存在的记录数
		$this->haveTitleNum = 0;
		// 保存还没有采集过的记录
		foreach ($this->titleUrls as $value) {
			if ($this->mod->haveProUrl($this->id, $value['url'])) {
				$this->haveTitleNum++;
			} else {
				$data = array(
					'rule_id' => $this->id,
					'url' => addslashes($value['url']),
					'title' => addslashes($value['title']),
				);
				$this->mod->addPro($data);
			}
		}
		return true;
	}
	
	public function setNextPage() {
		$this->mod->set($this->id, array('p_list_page' => $this->nextPage));	
	}
	
	public function html() {
		if (isset($this->_html)) {
			return $this->_html; 	
		}
		$url = $this->thisUrl();
		$html = $this->mod->getHtml($url, $this->charset_type);
		if (!$html) {
			show_msg("$url: 访问列表页地址失败, 请检查地址是否正确");	
		}
		$html = $this->mod->getContent($this->list_content_rule, $html);
		if (!$html) {
			show_msg("分析列表页内容区域失败, 请检查规则");	
		}
		$this->_html = $html;
		return $this->_html;	
	}
	
	public function thisUrl() {
		return $this->listUrls[$this->pListPage];
	}
	
	public function isOver() {
		if (isset($this->listUrls[$this->pListPage])) {
			return false;
		} else {
			return true;	
		}
	}

	
	/**
	 * 获取节点信息
	 * @param mixed 
	 * @return void
	 */
	public function __get($name) {
		if (isset($this->_ruleInfo[$name])) {
			return $this->_ruleInfo[$name];
		} else {
			return null;	
		}
	}
	
}