package nettext.file;

import nettext.document.Document;
import nettext.document.DocumentSection;
import java.io.BufferedReader;

/**
 * This class is the ASCII-format Document Reader
 * which is used by DocumentReader to read-in ASCII Documents
 *
 * Parsing Format:
 *   "\n\n" is a new section
 *
 */
public class ASCIIDocumentReader extends DocumentReader {

  /**
   * This stores the Document to be read.
   */
  private Document document;

  /**
   * Current Document Section being doing stuff to.
   */
  private DocumentSection docSection;

    /**
     * Read in a Document
     * @return success in reading the Document
     */
    public Document readDocument() {
        document = new Document();
        BufferedReader br;
        docSection = null;
        String sCurrSect = "";
        String sCurrSectName = "";
        String sCurrText;
        int iSectionOrder = 0;

        br = new BufferedReader(this.getInFileReader());

        try {
            sCurrText = br.readLine();
            if (sCurrText == null) {
                return null;
            }
        } catch (java.io.IOException ioe) {
            //readLine failed, returning blank document
            return null;
        }

        document.setDocumentName(sCurrText);

        try {
            while ((sCurrText = br.readLine()) != null) {
                // Checking current line for "..."
                if (sCurrText.startsWith("...")) {
                    //Creating a new section
                    if (docSection == null) {
                        docSection =
                            new DocumentSection(document.getDocumentId());
                        sCurrSectName = sCurrText.substring(3);
                        continue;
                    } else { //Adding section and resetting section info
                        docSection.setSectionOrder(iSectionOrder);
                        docSection.setSectionName(sCurrSectName);
                        docSection.setSectionContents(sCurrSect);
                        docSection.updateTimeStamp();
                        docSection.setUserName("Server");
                        document.addSection(docSection, iSectionOrder++);

                        //Done adding section, creating new docsec
                        docSection =
                            new DocumentSection(document.getDocumentId());
                        sCurrSectName = sCurrText.substring(3);
                        sCurrSect = "";
                        continue;

                    }
                }

                sCurrSect += sCurrText;
            }
            // No more lines but we need to add current section
            if (docSection != null) {
                docSection.setSectionOrder(iSectionOrder);
                docSection.setSectionName(sCurrSectName);
                docSection.setSectionContents(sCurrSect);
                docSection.updateTimeStamp();
                docSection.setUserName("Server");
                document.addSection(docSection, iSectionOrder++);
            }
        } catch (java.io.IOException ioe) {
            //readLine failed, returning what we have of the document
            document.setDocumentLoaded(true);
            return document;
        }
        document.setDocumentLoaded(true);
        return document;
    }

}