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- saved email to email.list

# allow mass emailing to students
#  Copyright (C) 1992-2000 Michigan State University
#
#  The CAPA system is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License as
#  published by the Free Software Foundation; either version 2 of the
#  License, or (at your option) any later version.
#
#  The CAPA system is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#  General Public License for more details.
#
#  You should have received a copy of the GNU General Public
#  License along with the CAPA system; see the file COPYING.  If not,
#  write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
#  Boston, MA 02111-1307, USA.
#
#  As a special exception, you have permission to link this program
#  with the TtH/TtM library and distribute executables, as long as you
#  follow the requirements of the GNU GPL in regard to all of the
#  software in the executable aside from TtH/TtM.

#Created 2000 by Guy Albertelli
proc runGroupEmail { capaConfigFile } {
    global gUniqueNumber gFile gWindowMenu gCT
    set num [incr gUniqueNumber]
    set gFile($num) [file dirname $capaConfigFile]
    parseCapaConfig $num $gFile($num)
    parseCapaUtilsConfig $num $gFile($num)
    
    set emailwin [toplevel .email$num]
    $gWindowMenu add command -label "Sending Email $gFile($num)" \
	-command "capaRaise \"$emailwin\""
    wm title $emailwin [file dirname $capaConfigFile]
    
    set fileFrame [frame $emailwin.file]
    set sentFrame [frame $emailwin.sent]
    set buttonFrame [frame $emailwin.button]
    pack $fileFrame $sentFrame $buttonFrame -side top -anchor w

    label $fileFrame.label -text "Mail Template:"
    entry $fileFrame.file -textvariable gCT($num.template)
    button $fileFrame.select -text "Browse" \
	-command "set gCT($num.template) \[tk_getOpenFile\]"
    pack $fileFrame.label $fileFrame.file $fileFrame.select -side left
    
    label $sentFrame.text -text "Send To:"
    set classFrame [frame $sentFrame.class]
    set sectionFrame [frame $sentFrame.section]
    set studentFrame [frame $sentFrame.student]
    #unpacked
    set scriptFrame [frame $sentFrame.script]
    pack $sentFrame.text $classFrame $sectionFrame $studentFrame -side top -anchor w
    
    #class
    radiobutton $classFrame.class -text "Whole Class" \
	-variable gCT($num.emailtype) -value "Class"
    pack $classFrame.class

    #sections
    set gCT($num.emailsections) "None"
    set top [frame $sectionFrame.top]
    set bottom [frame $sectionFrame.bottom]
    pack $top $bottom -side top -anchor w

    radiobutton $top.button -text "Sections" \
	-variable gCT($num.emailtype) -value "Sections"
    button $top.select -text "Select Section" -command "emailSelectSections $num"
    message $bottom.sections -textvariable gCT($num.emailsections) \
	-relief groove -width 350
    frame $bottom.spacer -width 20

    pack $top.button $top.select -side left -anchor w
    pack $bottom.spacer $bottom.sections -anchor w -side left
    
    #student
    radiobutton $studentFrame.specific -text "Students from file:" \
	    -value "Specific" -variable gCT($num.emailtype)
    entry $studentFrame.file -textvariable gCT($num.studentlist)
    button $studentFrame.select -text "Browse" \
	-command "set gCT($num.studentlist) \[tk_getOpenFile\]"
    pack $studentFrame.specific $studentFrame.file $studentFrame.select -side left

    #script
    radiobutton $scriptFrame.label -text "Script Selection:" -value "Script" \
	-variable gCT($num.emailtype)
    entry $scriptFrame.file -textvariable gCT($num.emailscript)
    button $scriptFrame.select -text "Browse" \
	-command "set gCT($num.emailscript) \[tk_getOpenFile\]"
    pack $scriptFrame.label $scriptFrame.file $scriptFrame.select -side left

    button $buttonFrame.send -text "Send" -command "emailSend $num"
    frame $buttonFrame.spacer -width 100
    button $buttonFrame.cancel -text "Close" -command "emailClose $num"
    pack $buttonFrame.send $buttonFrame.spacer $buttonFrame.cancel -side left
    Centre_Dialog $emailwin default
}

proc emailClose { num } {
    global gFile
    destroy .email$num
    removeWindowEntry "Sending Email $gFile($num)"
}

proc emailSelectSections { num } {
    global gCT gFile
    set pwd [pwd]; cd $gFile($num)
    set gCT($num.emailsections) [string trim [pickSections [getExistingSections] "Select Sections to send an email to:"]]
    cd $pwd
    if { $gCT($num.emailsections) != "" } { 
	set gCT($num.emailtype) Sections 
    } else {
	set gCT($num.emailsections) "None"
    }
}

proc emailSend { num } {
    global gCT gFile

    if { [catch {set fileId [open $gCT($num.template) r]}]} {
	displayMessage "Unable to open $gCT($num.template)"
	return
    }
    set gCT($num.message) [read $fileId [file size $gCT($num.template)]]
    close $fileId

    if { "Cancel" == [emailConfirm $num]} { return }
    emailGetStudents $num

    set max [llength $gCT($num.studentlist)]
    set i 0
    displayStatus "Sending Messages" both $num
    foreach student $gCT($num.studentlist) {
	incr i
#	foreach {email firstname lastname stunum} $student {break}
	set subject ""
	set message [emailMessage $num $student subject]
	emailSendMessage $num $student $message $subject
	updateStatusBar [expr $i/double($max)] $num
    }
    removeStatus $num
}

proc emailConfirm { num } {
    global gCT
    set msg "The message in $gCT($num.template) will be sent to"
    switch $gCT($num.emailtype) {
	Class { append msg " the whole class." }
	Sections { append msg " the sections $gCT($num.emailsections)." }
	Specific { append msg " to the student numbers in $gCT($num.studentlist)." }
	Script { 
	    append msg " to the students generated by the script $gCT($num.emailscript)."
	}
    }
    append msg "\n\n Continue?"
    if { "Yes" == [makeSure $msg]} {
	return "Yes"
    } 
    return "Cancel"
}

proc emailGetStudents { num } {
    global gCT gFile

    switch $gCT($num.emailtype) {
	Class { emailGetClass $num }
  	Sections { emailGetSections $num }
	Specific { emailGetSpecific $num }
	Script { }
    }
}

proc emailGetClass { num } {
    global gCT gFile
    set classlid [open [file join $gFile($num) classl] r]

    set aline [gets $classlid]
    while { ![eof $classlid] } {
	set email [string trim [string range $aline 60 99]]
	set firstname [string trim [lindex [lindex [split [string range $aline 24 59] ","] 1] 0]]
	set lastname [string trim [lindex [split [string range $aline 24 59] ","] 0]]
	set stunum [string trim [string range $aline 14 22]]
	lappend gCT($num.studentlist) [list $email $firstname $lastname $stunum]
	set aline [gets $classlid]
    }
}

proc emailGetSections { num } {
    global gCT  gFile
    set classlid [open [file join $gFile($num) classl] r]

    set aline [gets $classlid]
    while { ![eof $classlid] } {
	set section [string trimleft [string trim [string range $aline 10 12]] "0"]
	if { [lsearch $gCT($num.emailsections) $section] == -1 } {
	    set aline [gets $classlid]
	    continue
	}
	set email [string trim [string range $aline 60 99]]
	set firstname [string trim [lindex [lindex [split [string range $aline 24 59] ","] 1] 0]]
	set lastname [string trim [lindex [split [string range $aline 24 59] ","] 0]]
	set stunum [string trim [string range $aline 14 22]]
	set section [string trimleft [string trim [string range $aline 10 12] ] 0]
	lappend gCT($num.studentlist) [list $email $firstname $lastname $stunum $section]
	set aline [gets $classlid]
    }
}

proc emailGetSpecific { num } {
    global gCT gFile
    
    set fileId [open $gCT($num.studentlist)]
    set temp [split [read $fileId] "\n"]
    set allids ""
    foreach element $temp { if { $element != "" } { lappend allids $element } }
    close $fileId
#    puts $allids
    set gCT($num.studentlist) ""
    set classlid [open [file join $gFile($num) classl] r]
    set aline [gets $classlid]
    while { ![eof $classlid] } {
	set stunum [string trim [string range $aline 14 22]]
	if { [lsearch $allids $stunum] !=-1 } {
	    set section [string trimleft [string trim [string range $aline 10 12]] "0"]
	    set email [string trim [string range $aline 60 99]]
	    set firstname [string trim [lindex [lindex [split [string range $aline 24 59] ","] 1] 0]]
	    set lastname [string trim [lindex [split [string range $aline 24 59] ","] 0]]
	    set section [string trimleft [string trim [string range $aline 10 12] ] 0]
	    lappend gCT($num.studentlist) [list $email $firstname $lastname $stunum $section]
	}
	set aline [gets $classlid]
    }
}

proc emailMessage { num student subjectVar } {
    global gCT gFile gCapaConfig
    upvar $subjectVar subject
    set message $gCT($num.message)

    regsub -all -- \\\$email $message [lindex $student 0] message
    regsub -all -- \\\$first_name $message [lindex $student 1] message
    regsub -all -- \\\$last_name $message [lindex $student 2] message
    regsub -all -- \\\$student_number $message [lindex $student 3] message
    set stunum [lindex $student 3]
    set section [lindex $student 4]
    while { [regexp {\$capaid\(([0-9all\.,]*)\)} $message match set] } {
	set capaid [getCapaID $set $stunum $section $gFile($num)]
	regsub -all -- \\\$capaid\\\($set\\\) $message $capaid message
    }
    while { [regexp {\$homework_score\(([0-9all\.,]*)\)} $message match set] } {
	if { [catch {set setmax [set max $gCapaConfig($num.homework_count)]}]} { 
	    set max 99;set setmax 99
	}
	set scores [getScores $set $stunum $section $gFile($num) $max setmax]
	regsub -all -- \\\$homework_score\\\($set\\\) $message $scores message
	if { $set == "all" } { 
	    set all(homework.score) $scores
	    set all(setmax.homework.score) $setmax
	}
    }
    while { [regexp {\$homework_total\(([0-9all\.,]*)\)} $message match set] } {
	if { [catch {set setmax [set max $gCapaConfig($num.homework_count)]}]} { 
	    set max 99;set setmax 99
	}
	set scores [getTotals $set $stunum $section $gFile($num) $max setmax]
	regsub -all -- \\\$homework_total\\\($set\\\) $message $scores message
	if { $set == "all" } { 
	    set all(homework.total) $scores 
	    set all(setmax.homework.total) $setmax
	}
    }
    foreach {path limit} {quiz quiz_count supp none others none correction \
			      final_exam_set_number exam final_exam_set_number} {
	if {[catch {set gCapaConfig($num.[set path]_path)}]} {
	    continue
	} else {
	    if { ![file exists $gCapaConfig($num.[set path]_path)] } { continue }
	}
	if { [catch {set setmax [set max $gCapaConfig($num.$limit)]}]} { 
	    set max 99 ; set setmax 99
	}
	foreach {type call} {score getScores total getTotals} {
	    set exp {\$};append exp $path;append exp _$type
	    append exp {\(([0-9all\.,]*)\)}
	    while { [regexp $exp $message match set]} {
		set scores [$call $set $stunum $section \
				$gCapaConfig($num.[set path]_path) $max setmax]
		set replacexp {\$};append replacexp $path;append replacexp _$type
		append replacexp {\(};append replacexp $set;append replacexp {\)}
		regsub -all -- $replacexp $message $scores message
		if { $set == "all" } { 
		    set all($path.$type) $scores 
		    set all(setmax.$path.$type) $setmax
		}
	    }
	}
    }
    if { [regexp {\$grade} $message match] } {
	#homework
	foreach {type func} {score getScores total getTotals} {
	    if { [catch {set all(homework.$type)}]} {
		if { [catch {set setmax [set max $gCapaConfig($num.homework_count)]}]} { 
		    set max 99;set setmax 99
		}
		set all(homework.$type) [$func "all" $stunum $section $gFile($num) \
					     $max setmax]
#		set all(setmax.homework.$type) $setmax
	    }
	}
	#quizzes
	foreach {type func} {score getScores total getTotals} {
	    if { [catch {set all(quiz.$type)}]} {
		if { [catch {set setmax [set max $gCapaConfig($num.quiz_count)]}]} { 
		    set max 99;set setmax 99
		}
		set all(quiz.$type) [$func "all" $stunum $section  \
					 $gCapaConfig($num.quiz_path) $max setmax]
#		set all(setmax.quiz.$type) $setmax
	    }
	}
	#exams and final
	if { [catch {set setmax [set max $gCapaConfig($num.final_exam_set_number)]}]} { 
	    set max 99;set setmax 99
	}
	set finalset $setmax
	set lastexam [expr $finalset - 1]
	set totalexam 0
	for { set i 1 } { $i <= $lastexam } { incr i } {
	    set exams [getScores $i $stunum $section $gCapaConfig($num.exam_path)]
	    set examt [getTotals $i $stunum $section $gCapaConfig($num.exam_path)]
	    set corrs [getScores $i $stunum $section $gCapaConfig($num.exam_path)]
	    set corrt [getTotals $i $stunum $section $gCapaConfig($num.exam_path)]
	    if { [catch {set exam [expr $exams/double($examt)]}] } { set exam 0 }
	    if { [catch {set corr [expr $corrs/double($corrt)]}] } { set corr 0 }
	    if { $corr > $exam } {
		set totalexam [expr $totalexam + \
				   [expr $exam + $gCapaConfig($num.correction_weight) \
					* ($corr - $exam)]]
	    } else {
		set totalexam [expr $totalexam + $exam]
	    }
	}
	if { [catch {set totalexam [expr $totalexam / ($i-1)]}] } { set totalexam 0 }
	set finals [getScores $finalset $stunum $section $gCapaConfig($num.exam_path)]
	set finalt [getTotals $finalset $stunum $section $gCapaConfig($num.exam_path)]
	if { [catch {set final [expr $finals/double($finalt)]}]} {set final 0}
	if { [catch {set homework [expr $all(homework.score)/double($all(homework.total))]}] } { set homework 0 }
	if { [catch {set quiz [expr $all(quiz.score)/double($all(quiz.total))]}] } { set quiz 0 }
	set grade [expr $gCapaConfig($num.homework_weight)*$homework +\
		       $gCapaConfig($num.quiz_weight)*$quiz +\
		       $gCapaConfig($num.exam_weight)*$totalexam +\
		       $gCapaConfig($num.final_weight)*$final]
	set grade [format "%2.1f" [expr $grade * 100 ]]
	regsub -all -- \\\$grade $message $grade message
    }
    regexp "^Subject:(\[^\n]*)" $message garbage subject
    regsub "^Subject:(\[^\n]*)" $message {} message
    return $message
}

proc emailSendMessage { num student message subject } {
    global gCT gCapaConfig
    exec echo $message | $gCapaConfig($num.mail_command) -s $subject [lindex $student 0]
}