//-----------------------------------------------------------------------------
//	ib_fs_err_cb.js
//-----------------------------------------------------------------------------
//
//      FSErr
//
//      JS Class to perform flight search control checks and display
//      possibly the errors.
//
//      Methods
//
//      fsc_check( theForm, noPartyCheck )
//          performs a flight search control check
//          params:
//          theForm         the document form as you get it through
//                          document.forms[ "formname" ] or as it is bound to
//                          the 'this' on form submit.
//          noPartyCheck    boolean value, determines, whether or not to check
//                          the party.
//                          true    no party check will be done
//                          false   party check is performed
//
//      fsc_check_party( theForm )
//          perform party check
//
//
//      Synopsis
//
//      var specification = {
//          LBP:        ibe.LBP,
//          divivId:    'errordivId',
//          divWidth:    200,               // optional
//          hideIds:    [ "id1", "id2" ]    // optional
//      };
//
//      var specification_minimal = {
//          LBP:        ibe.LBP,
//          divivId:    'errordivId'
//      }
//
//      var errObject = new FSErr( specification_minimal );
//
//      ... and later ...
//
//      errObject.fsc_check( document.forms.formname, false );
//
//      or as an attribute to the submit button's html tag
//      onSubmit="errObject.fsc_check( this, false )";
//
//-----------------------------------------------------------------------------
//      rg      Wed Jul 23 2008
//-----------------------------------------------------------------------------

function FSErr( cfg ) {
    this.ourDivId           = cfg.divId || null;
    this.ourDiv             = xGetElementById( this.ourDivId );
    if ( !this.ourDivId || !this.ourDiv ) {
        var txt = this.ourDivId ? this.ourDivId : "no Id passed";
        alert( "Could not get ourDiv by Id " + txt );
        return null;
    }
    this.ourDivWidth        = cfg.divWidth || 0;
    this.idsToHideOnError   = cfg.hideIds  || [];

    this.LBP                = cfg.LBP;
    if ( !this.LBP ) {
        alert( "No LBP object passed --- cannot create an FSErr object!" );
        return null;
    }
    this.origin_node        = this.LBP.getOrigNode( );
    this.destination_node   = this.LBP.getDestNode( );

    this.errList            = [];       // gathers FSErr.errors before displaying
    this.errFocus           = null;     // form field to get focus


    this.hideIds =
        function( ) { xHideAllOf( this.idsToHideOnError ); };

    this.buildParagraph =
        function( txt, i ) {
            var para  = document.createElement( "p" );
            var txtEl = document.createTextNode( txt );
            para.appendChild( txtEl );
            para.className = ( i == 0 ) ? "first" : "sub";
            this.errList.push( para );
        };

    this.addErrList =
        function( txt, errFld ) {
            var paras = txt.split( FSErr.ERR_SEP );
            for ( var i = 0; i < paras.length; i++ ) {
                this.buildParagraph( paras[ i ], i );
            }
            if ( ! this.errFocus ) {
                this.errFocus = errFld;
            }
        };

    this.showErrList =
        function( ) {
            var para,
                i,
                innerDiv;

            while( this.ourDiv.hasChildNodes() ) {
                this.ourDiv.removeChild( this.ourDiv.firstChild );
            }

            if ( this.ourDivWidth != 0 ) {
                xWidth( this.ourDiv, this.ourDivWidth );
            }

            innerDiv = document.createElement( "div" );
            innerDiv.className = "innerDiv";
            this.ourDiv.appendChild( innerDiv );

            for ( i = 0; i < this.errList.length; i++ ) {
                innerDiv.appendChild( this.errList[ i ] );
            }

            this.errList = [];
            if ( this.errFocus ) {
		try {
                    if ( this.errFocus.focus ) {
			this.errFocus.focus( );
                    }
		}
		    catch( e ) {
		}
                this.errFocus = null;
            }
        };

    this.fsc_check =
        function( theForm, restricted ) {

            var chkParty = restricted ? true : false;
            var loc_mode = this.LBP.getLocMode( );
            this.errList = [];

            if ( !this.origin_node.value ) {
                this.addErrList( FSErr.errors[ "BAD_ORIG" ], this.origin_node );
            }
            var tlc1 = this.origin_node.value;
            var loc1 = tlc1 ? this.LBP.loc( tlc1 ) : null;

            if ( !this.destination_node.value ) {
                this.addErrList( FSErr.errors[ "BAD_DEST" ], this.destination_node );
            }
            var tlc2 = this.destination_node.value;
            var loc2 = tlc2 ? this.LBP.loc( tlc2 ) : null;

	    /*
            var my1 = theForm.outwardMonthYear.options[ theForm.outwardMonthYear.selectedIndex ].value;
            var d1  = theForm.outwardDay.options[ theForm.outwardDay.selectedIndex ].value;
            var my2 = theForm.returnMonthYear.options[ theForm.returnMonthYear.selectedIndex ].value;
            var d2  = theForm.returnDay.options[ theForm.returnDay.selectedIndex ].value;
	    */

	    try {
                var my1 = theForm.outwardMonthYear.value;
                var d1  = theForm.outwardDay.value;
                var my2 = theForm.returnMonthYear.value;
                var d2  = theForm.returnDay.value;

                if ( this.errList.length == 0 && loc_in_both_times ) {
                    if ( ! loc_in_both_times( my1, d1, loc1, my2, d2, loc_mode ) ) {
                        this.addErrList( loc1.repr(), this.origin_node );
                    }
                    if ( tlc2 !== "RSW" && tlc2 !== "HAV" ) {
                        if ( ! loc_in_both_times( my1, d1, loc2, my2, d2, loc_mode ) ) {
                           this.addErrList( loc2.repr(), this.destination_node );
                        }
                    }
                }

                if ( loc_origBeforeToday( my1, d1 ) )
                    this.addErrList( FSErr.errors[ "BAD_DATE_ORIG" ], theForm.outwardDay );
                if ( loc_destBeforeToday( loc_mode, my2, d2 ) )
                    this.addErrList( FSErr.errors[ "BAD_DATE_DEST" ], theForm.returnDay );
                if ( !loc_inSequence( my1, d1, my2, d2, loc_mode ) )
                    this.addErrList( FSErr.errors[ "DATE_SEQ" ], theForm.outwardDay );

	    }
	    catch( e ) {
		// alert( "fsc_check --- error: " + e );
	    }

            if ( chkParty ) {
                if ( theForm.partyAdults ) {
                    var ad = parseInt( theForm.partyAdults.value );
                    var ch = parseInt( theForm.partyChildren.value );
                    var bb = parseInt( theForm.partyInfants.value );

                    if ( ad + ch + bb < 1 || ad + ch + bb > 6 || ad < bb || ad * 2 < ch ) {
                        this.addErrList( FSErr.errors[ "BAD_PARTY" ], theForm.partyAdults );
                    }
                }
            }

            if ( this.errList.length > 0 ) {
                this.showErrList( );
                return false;
            } else {
                return true;
            }
        };


    this.fsc_check_party =
        function( theForm ) {

            if ( theForm.partyAdults ) {
		/*
                var ad = parseInt( theForm.partyAdults.options[ theForm.partyAdults.selectedIndex ].value );
                var ch = parseInt( theForm.partyChildren.options[ theForm.partyChildren.selectedIndex ].value );
                var bb = parseInt( theForm.partyInfants.options[ theForm.partyInfants.selectedIndex ].value );
		*/
                var ad = parseInt( theForm.partyAdults.value );
                var ch = parseInt( theForm.partyChildren.value );
                var bb = parseInt( theForm.partyInfants.value );

                if ( ad + ch + bb < 1 || ad + ch + bb > 6 || ad < bb || ad * 2 < ch ) {
                    this.addErrList( FSErr.errors[ "BAD_PARTY" ], theForm.partyAdults );
                }
            }

            if ( this.errList.length > 0 ) {
                this.showErrList( );
                return false;
            } else {
                return true;
            }
        };

    function h_getFormD8( my, day ) {	// converts form data into "YYYYMMDD"
       var m  = String( my % 12  + 1);
       while ( m.length < 2 ) m = "0" + m;
       var y  = String( (my - my % 12) / 12 + 1900 );
       while ( y.length < 4 ) y = "0" + y;
       var d = String( day );
       while ( d.length < 2 ) d = "0" + d;

       return y + m + d;
    }

    function h_DateToStr( d ) {		// converts JS Date into "YYYYMMDD"
        var yyyy = String(d.getFullYear());
        while (yyyy.length < 4) yyyy = "0" + yyyy;
        var mm = String(d.getMonth() + 1);
        while (mm.length < 2) mm = "0" + mm;
        var dd = String(d.getDate());
        while (dd.length < 2) dd = "0" + dd;
        return yyyy + mm + dd;
    }

    function loc_origBeforeToday( my, d ) {
        return h_getFormD8( my, d ) < h_DateToStr( new Date() );
    }

    function loc_destBeforeToday( loc_mode, my, d ) {
        return loc_mode == "RT" && h_getFormD8( my, d ) < h_DateToStr( new Date() );
    }

    function loc_in_both_times( my1, d1, loc, my2, d2, loc_mode ) {
        // is airport operating at the two dates of departure and arrival?
        var form1_d8     = h_getFormD8( my1, d1 );
        var form2_d8     = h_getFormD8( my2, d2 );
        var tlc_d8_min   = loc.from;
        var tlc_d8_max   = loc.until;
        return ( tlc_d8_min <= form1_d8 && form1_d8 <= tlc_d8_max &&
                 ( loc_mode == "OW" ||
                   ( tlc_d8_min <= form2_d8 && form2_d8 <= tlc_d8_max ) ) );
    }

    function loc_both_in_time( my, d, loc1, loc2 ) {
       // is a date constructed from the contents of a pair of select boxes
       // within the operation time of two locations making up a route
       var form_d8     = h_getFormD8( my, d );
       var tlc1_d8_min = loc1.from;
       var tlc1_d8_max = loc1.until;
       var tlc2_d8_min = loc2.from;
       var tlc2_d8_max = loc2.until;
       return ( tlc1_d8_min <= form_d8 && form_d8 <= tlc1_d8_max &&
                tlc2_d8_min <= form_d8 && form_d8 <= tlc2_d8_max );
    }

    function loc_inSequence( m1, d1, m2, d2, loc_mode ) {
        // form dates in sequence?
       if ( loc_mode == "RT" ) {
          if ( h_getFormD8( m1, d1 ) >  h_getFormD8( m2, d2 ) )
             return false;
       }
       return true;
    }

}

//-----------------------------------------------------------------------------
//	... our data
//-----------------------------------------------------------------------------
FSErr.ERR_SEP = "-|-";    // separate multiple lines of one error
FSErr.errors = {
    "BAD_DATE_ORIG":    "The departure date entered is in the past. Please enter another departure date.",
    "BAD_DATE_DEST":    "The return date entered is in the past. Please enter anothe return date.",
    "DATE_SEQ":         "The date of your return flight is earlier than than your outbound flight. Please correct your travel dates.",
    "BAD_ORIG":         "Please select a departure city.",
    "BAD_DEST":         "Please select a destination.",
    "BAD_PARTY":        "Please note:"  + FSErr.ERR_SEP +
                        "The total number of travelers per reservation may not exceed 6. If you would like to reserve for more than 6 people, you will need to process more than one reservation." + FSErr.ERR_SEP +
                        "You may bring only one infant on board per traveling adult.  The reason behind this restriction is the number of oxygen masks per row. This is for the safety of your children." + FSErr.ERR_SEP +
                        "Each traveling adult may bring on board a maximum of 2 children (under 2 years of age at time of departure) at a reduced fare prices. Further children pay the adult fare."
};

//-----------------------------------------------------------------------------
//	... the end of	ib_fs_err.js
//-----------------------------------------------------------------------------