def cap_generate_bulletin_form(r, **attr):
    """
        Generate a PDF for a bullentin form
    """

    from s3.s3export import S3Exporter
    exporter = S3Exporter().pdf
    return exporter(r.resource,
                    request=r,
                    pdf_header = cap_bulletin_pdf_header,
                    pdf_callback = cap_bulletin_pdf_callback,
                    pdf_footer = cap_bulletin_pdf_footer,
                    pdf_header_padding = 12,
                    pdf_title="Warning Bulletin",
                    pdf_hide_comments=True,
                    **attr
                    )

# =============================================================================
def cap_bulletin_pdf_header(r):

    record = r.record
    if record:
        T = current.T
        header = DIV(TABLE(TR(TH(IMG(_src="\%s\static\\themes\SAMBRO\img\\ndrrmc.png" % current.request.application),
                                 _display="inline-block"
                                 ),
                              TH(DIV(
                                 P("<i>REPUBLIC OF THE PHILIPPINES</i>",
                                   _style= "font-family: Times New Roman, font-size: 23px",
                                   ),
                                 P(T("NATIONAL DISASTER RISK REDUCTION AND MANAGEMENT COUNCIL"),
                                   _style="display:inline-block",
                                   ),
                                 P("<br/>",
                                   _style="display:inline-block",
                                   ),
                                 P(T("National Disaster Risk Reduction and Management Center, Camp Aguinaldo, Quezon City, Philippines"),
                                   _style="display: inline-block",
                                   ),
                                 )),
                              ),
                           ),
                     )

        return header
    return None

# =============================================================================
def cap_bulletin_pdf_callback(r):

    record = r.record
    if record:
        def get_formatted_value(value):
            if isinstance(value, list):
                nvalue = []
                for value_ in value:
                    if value_:
                        nvalue.append(value_)
                if len(nvalue):
                    nvalue = ", ".join(nvalue)
                    return nvalue
                else:
                    return None
            else:
                return value

        T = current.T
        record = r.record
        resource = r.resource

        table = current.s3db.cap_alert
        fields = ["info.headline", "info.instruction"]
        # Extract the data
        data = resource.select(fields,
                               raw_data=True)
        # Single row as we are filtering for particular alert_id
        row = data["rows"][0]

        instructions = row["cap_info.instruction"]
        if not isinstance(instructions, list):
            instructions = [instructions]

        instruction = ()
        for instruction_ in instructions:
            instruction += (instruction_,)

        body = DIV(P("NDRRMC UPDATE", _style="text-decoration: underline"),
                   P("Severe Weather Bulletin No. %(id)s (%(msg_type)s) re %(event_type)s" % \
                     {"id": record.id,
                      "msg_type": record.msg_type,
                      "event_type": table.event_type_id.represent(record.event_type_id)
                      },
                     ),
                     P("Releasing Officer:"),
                     BR(),
                     BR(),
                     P("..............................................."),
                     P("Executive Director"),
                     P("DATE: %s" % table.sent.represent(record.sent)),
                     HR(),
                     P("Source: PAGASA-DOST"),
                     P("I. SITUATIONAL OVERVIEW"),
                     P("%s" % get_formatted_value(row["cap_info.headline"])),
                     TABLE(TR(TH("Location of the Center: (as of %s)" % ("10:00 am")),
                              TH("Area Description"),
                              ),
                           TR(TH("Coordinates:"),
                              TH("Polygon"),
                              ),
                           TR(TH("Strength:"),
                              TH("Description"),
                              ),
                           TR(TH("Movement:"),
                              TH("DESCRIPTION"),
                              ),
                           TR(TH("Forecast Positions/Outlook:"),
                              TH("Description"))
                           ),
                   P("II. ACTION/S TAKEN"),
                   TAG[""](instruction),
                   )

        return body
    return None

# =============================================================================
def cap_bulletin_pdf_footer(r):

    record = r.record
    if record:
        T = current.T
        footer = DIV(HR(),
                     P("Telefax: NDRRMC Opcen (+632) 911-1406; 912-2665; 912-5668; NDRRMC Secretariat (+632) 912-0441; 912-5947;"),
                     P("Office of the Administrator, Office of Civil Defense (+632) 912-2424"),
                     P("Email"))
        return footer
    return None