Function OI_Wizard_Actions(Action, CalcColName, FSList, Handle, Name, FMC, Record, Status, OrigRecord, Param1, Param2, Param3, Param4, Param5, Param6, Param7, Param8, Param9, Param10)
/***********************************************************************************************************************

    This program is proprietary and is not to be used by or disclosed to others, nor is it to be copied without written
    permission from SRP Computer Solutions, Inc.

    Name        :   OI_Wizard_Actions

    Description :   Handles calculated columns and MFS calls for the current table.

    Notes       :   This function uses @ID, @RECORD, and @DICT to make sure {ColumnName} references work correctly.
                    If called from outside of a calculated column these will need to be set and restored.

    Parameters  :
        Action          [in] -- Name of the action to be taken
        CalcColName     [in] -- Name of the calculated column that needs to be processed. Normally this should only be
                                populated when the CalcField action is being used.
        FSList          [in] -- The list of MFSs and the BFS name for the current file or volume. This is an @SVM
                                delimited array, with the current MFS name as the first value in the array, and the BFS
                                name as the last value. Normally set by a calling MFS.
        Handle          [in] -- The file handle of the file or media map being accessed. Note, this does contain the
                                entire handle structure that the Basic+ Open statement would provide. Normally set by a
                                calling MFS.
        Name            [in] -- The name (key) of the record or file being accessed. Normally set by a calling MFS.
        FMC             [in] -- Various functions. Normally set by a calling MFS.
        Record          [in] -- The entire record (for record-oriented functions) or a newly-created handle (for
                                "get handle" functions). Normally set by a calling MFS.
        Status      [in/out] -- Indicator of the success or failure of an action. Normally set by the calling MFS but
                                for some actions can be set by the action handler to indicate failure.
        OrigRecord      [in] -- Original content of the record being processed by the current action. This is
                                automatically being assigned by the WRITE_RECORD and DELETE_RECORD actions within
                                BASE_MFS.
        Param1-10   [in/out] -- Additional request parameter holders
        ActionFlow     [out] -- Used to control the action chain (see the ACTION_SETUP insert for more information.)
                                Can also be used to return a special value, such as the results of the CalcField
                                method.

    History     :   (Date, Initials, Notes)
        08/03/18    dmb     Original programmer.

***********************************************************************************************************************/
#pragma precomp SRP_PreCompiler

$Insert LOGICAL
$Insert FILE.SYSTEM.EQUATES
$Insert ACTION_SETUP
$Insert OI_WIZARD_EQUATES
$Insert TIME_INSERTS

Declare function    UCase, Utility_DotNet, Database_Services, Error_Services, Datetime

If KeyID then GoSub Initialize_System_Variables

Begin Case

    Case Action _EQC 'CalculateColumn'      ;   GoSub CalculateColumn
    Case Action _EQC 'READ_RECORD_PRE'      ;   GoSub READ_RECORD_PRE
    Case Action _EQC 'READ_RECORD'          ;   GoSub READ_RECORD
    Case Action _EQC 'READONLY_RECORD_PRE'  ;   GoSub READONLY_RECORD_PRE
    Case Action _EQC 'READONLY_RECORD'      ;   GoSub READONLY_RECORD
    Case Action _EQC 'WRITE_RECORD_PRE'     ;   GoSub WRITE_RECORD_PRE
    Case Action _EQC 'WRITE_RECORD'         ;   GoSub WRITE_RECORD
    Case Action _EQC 'DELETE_RECORD_PRE'    ;   GoSub DELETE_RECORD_PRE
    Case Action _EQC 'DELETE_RECORD'        ;   GoSub DELETE_RECORD
    Case Otherwise$                         ;   Status = 'Invalid Action'

End Case

If KeyID then GoSub Restore_System_Variables

Return ActionFlow OR ACTION_CONTINUE$


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Calculated Columns 
//
// The typical structure of a calculated column will look like this:
//
// Declare function Database_Services
//
// @ANS = Database_Services('CalculatedColumn')
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

CalculateColumn:

    // Make sure the ActionFlow return variable is cleared in case nothing is calculated.
    ActionFlow = ''

    Begin Case
        Case CalcColName EQ 'EMPLOYEE_NAME'                     ; GoSub EMPLOYEE_NAME
        Case CalcColName EQ 'EXPIRY'                            ; GoSub EXPIRY
        Case CalcColName EQ 'EXPIRY_UTC'                        ; GoSub EXPIRY_UTC
        Case CalcColName EQ 'LAST_MODIFIED'                     ; GoSub LAST_MODIFIED
        Case CalcColName EQ 'VALID'                             ; GoSub VALID
    End Case

return


EMPLOYEE_NAME:

    EmployeeID  = {EMPLOYEE_ID}
    EmployeeRow = Database_Services('ReadDataRow', 'LSL_USERS', EmployeeID)
    If Error_Services('NoError') then
        EmployeeName    = Trim(EmployeeRow<1> : ' ' : EmployeeRow<2>)
    end else
        EmployeeName    = ''
    end

    ActionFlow  = EmployeeName

return


LAST_MODIFIED:

    // Create an HTTP-date formatted Date/Time stamp for this resource.
    LastDate    = {UPDATED_DATES}[-1, 'B' : @VM]
    LastTime    = {UPDATED_TIMES}[-1, 'B' : @VM]
    If LastDate EQ '' then
        // No updates have occured so use the Create Date/Time.
        LastDate    = {CREATED_DATE}
        LastTime    = {CREATED_TIME}
    end
    lastDateTime    = Iconv(Oconv(LastDate, 'D4/') : ' ' : Oconv(LastTime, 'MTS'), 'DTS')
    lastDateTime    = Utility_DotNet('TIMEZONE', lastDateTime, -1)
    ActionFlow      = lastDateTime

return


VALID:
    
    // Check if session is still valid
    // Default to false
    Valid = False$
    If Not({TERMINATED}) then
        LastDate = {UPDATED_DATES}[-1, 'B' : @VM]
        LastTime = {UPDATED_TIMES}[-1, 'B' : @VM]
        If LastDate EQ '' then
            // No updates have occured so use the Create Date/Time.
            LastDate    = {CREATED_DATE}
            LastTime    = {CREATED_TIME}
        end
        LastDateTime = Iconv(Oconv(LastDate, 'D4/') : ' ' : Oconv(LastTime, 'MTS'), 'DTS')
        SessionAge   = (Datetime() - LastDateTime) * SECONDS_IN_DAY$
		MaxAge       = HOUR_IN_SECONDS$ * 12
		If SessionAge LT MaxAge then Valid = True$ 
    end
    ActionFlow = Valid
    
return


EXPIRY:
    
    Expiry = ''
    If Not({TERMINATED}) then
        LastDate = {UPDATED_DATES}[-1, 'B' : @VM]
        LastTime = {UPDATED_TIMES}[-1, 'B' : @VM]
        If LastDate EQ '' then
            // No updates have occured so use the Create Date/Time.
            LastDate    = {CREATED_DATE}
            LastTime    = {CREATED_TIME}
        end
        lastDateTime = Iconv(Oconv(LastDate, 'D4/') : ' ' : Oconv(LastTime, 'MTS'), 'DTS')
        // Set expiry to last updated datetime (i.e. last time the session was updated/validated) 
        // plus 12 hours (0.5 of a day).
        Expiry      = lastDateTime + 0.5
    end
    ActionFlow = Expiry
    
return


EXPIRY_UTC:
    
    ActionFlow = Utility_DotNet('TIMEZONE', {EXPIRY}, -1)
    
return


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// MFS Actions
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

READ_RECORD_PRE:
    // In order to stop a record from being read in this action these lines of code must be used:
    //
    //    OrigFileError   = 100 : @FM : KeyID
    //    Status          = 0
    //    Record          = ''
    //    ActionFlow      = ACTION_STOP$
return


READ_RECORD:
    // In order to stop a record from being read in this action these lines of code must be used:
    //
    //    OrigFileError   = 100 : @FM : KeyID
    //    Status          = 0
    //    Record          = ''
return


READONLY_RECORD_PRE:
    // In order to stop a record from being read in this action these lines of code must be used:
    //
    //    OrigFileError   = 100 : @FM : KeyID
    //    Status          = 0
    //    Record          = ''
    //    ActionFlow      = ACTION_STOP$
return


READONLY_RECORD:
    // In order to stop a record from being read in this action these lines of code must be used:
    //
    //    OrigFileError   = 100 : @FM : KeyID
    //    Status          = 0
    //    Record          = ''
return


WRITE_RECORD_PRE:
return


WRITE_RECORD:
return


DELETE_RECORD_PRE:
return


DELETE_RECORD:
return


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Internal GoSubs
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Initialize_System_Variables:

    // Save these for restoration later
    SaveDict        = @DICT
    SaveID          = @ID
    SaveRecord      = @RECORD
    OrigFileError   = @FILE.ERROR

    // Now make sure @DICT, ID, and @RECORD are populated
    CurrentDictName = ''
    If @DICT then
        DictHandle = @DICT<1, 2>
        Locate DictHandle in @TABLES(5) Using @FM Setting fPos then
            CurrentDictName = Field(@TABLES(0), @FM, fPos, 1)
        end
    end

    If CurrentDictName NE DictName then
         Open DictName to @DICT else Status = 'Unable to initialize @DICT'
    end    

    @ID = KeyID
    If Record else
        // Record might not have been passed in. Read the record from the database table just to make sure.
        @FILE.ERROR     = ''
        Open TableName to hTable then
            FullFSList  = hTable[1, 'F' : @VM]
            BFS         = FullFSList[-1, 'B' : @SVM]
            LastHandle  = hTable[-1, 'B' : \0D\]
            FileHandle  = \0D\ : LastHandle[1, @VM]

            Call @BFS(READO.RECORD, BFS, FileHandle, KeyID, FMC, Record, ReadOStatus)
        end
    end
    @RECORD = Record

return


Restore_System_Variables:

    Transfer SaveDict   to @DICT
    Transfer SaveID     to @ID
    Transfer SaveRecord to @RECORD
    @FILE.ERROR = OrigFileError

return

