import tkinter as tk

from tkinter import ttk$,$ messagebox

from datetime import datetime

class WorkshopApp:

def $\_\_$init$\_\_($self$,$ root$)$:

self.root $=$ root

self.root.title$("$Craft Workshop Management System"$)$

self.teachers $=[]$

self.students $=[]$

self.courses $=[]$

self.init$\_$data$()$

self.setup$\_$ui$()$

def init$\_$data$($self$)$:

self.teachers.append$($Teacher$("$Kemal$","123-456-7890","987-654-3210",$ "Elmal$$ sk$..",$ "kemal@example.com", $50,100,"9$:$00$AM$-5$:$00$PM$",$ "Woodworking, Pottery"$))$

self.teachers.append$($Teacher$("$Ay$$e$","321-654-9870","654-321-9870",$ "ordu sk$.","$ay$$e@example.com", $60,120,"10$:$00$AM$-6$:$00$PM$",$ "Painting, Sculpting"$))$

self.students.append$($Student$("$Fatma$","222-333-4444","333-444-5555","$nar sk$.",$ "fatma@example.com"$))$

self.students.append$($Student$("$Mustafa$","444-555-6666","555-666-7777","$ar$$ sk$.",$ "mustafa@example.com"$))$

self.courses.append$($Course$("001",$ "Woodworking Basics", "Weekdays", $"1$:$00$PM$-3$:$00$PM$",150,$ self.teachers$[0],1))$

self.courses.append$($Course$("002",$ "Pottery Intermediate", "Weekends", $"10$:$00$AM$-12$:$00$PM$",180,$ self.teachers$[0],10))$

self.courses.append$($Course$("003",$ "Painting Techniques", "Weekdays", $"2$:$00$PM$-4$:$00$PM$",160,$ self.teachers$[1],10))$

self.courses.append$($Course$("004",$ "Sculpting Advanced", "Weekends", $"3$:$00$PM$-5$:$00$PM$",200,$ self.teachers$[1],10))$

def setup$\_$ui$($self$)$:

ttk$.$Button$($self$.$root, text$=$"Course Enroll", command$=$self.course$\_$enroll$).$grid$($row$=0,$ column$=0,$ padx$=10,$ pady$=10)$

ttk$.$Button$($self$.$root, text$=$"Add New Course", command$=$self.add$\_$new$\_$course$).$grid$($row$=0,$ column$=1,$ padx$=10,$ pady$=10)$

ttk$.$Button$($self$.$root, text$=$"View$/$Edit Courses", command$=$self.view$\_$courses$).$grid$($row$=0,$ column$=2,$ padx$=10,$ pady$=10)$

ttk$.$Button$($self$.$root, text$=$"View Teachers", command$=$self.view$\_$teachers$).$grid$($row$=0,$ column$=3,$ padx$=10,$ pady$=10)$

ttk$.$Button$($self$.$root, text$=$"View Students", command$=$self.view$\_$students$).$grid$($row$=0,$ column$=4,$ padx$=10,$ pady$=10)$

ttk$.$Button$($self$.$root, text$=$"Add New Teacher", command$=$self.add$\_$new$\_$teacher$).$grid$($row$=0,$ column$=5,$ padx$=10,$ pady$=10)$

def view$\_$students$($self$)$:

student$\_$window $=$ tk$.$Toplevel$($self$.$root$)$

student$\_$window.title$("$List of Students"$)$

for index, student in enumerate$($self$.$students$)$:

row $=$ index

ttk$.$Label$($student$\_$window, text$=$student.name$).$grid$($row$=$row, column$=0,$ padx$=5,$ pady$=2)$

details$\_$btn $=$ ttk$.$Button$($student$\_$window, text$=$"Details", command$=$lambda s$=$student: self.show$\_$student$\_$details$($s$))$

details$\_$btn$.$grid$($row$=$row, column$=1,$ padx$=5,$ pady$=2)$

def show$\_$student$\_$details$($self$,$ student$)$:

details$\_$window $=$ tk$.$Toplevel$($self$.$root$)$

details$\_$window.title$("$Student Details"$)$

labels $=["$Name$",$ "Home Phone", "Mobile Phone", "Address", "Email"$]$

entries $=\{\}$

for i$,$ label in enumerate$($labels$)$:

ttk$.$Label$($details$\_$window, text$=$f$"\{$label$\}$:$").$grid$($row$=$i$,$ column$=0,$ padx$=5,$ pady$=5)$

entry $=$ ttk$.$Entry$($details$\_$window$)$

entry.insert$(0,$ getattr$($student$,$ label.lower$().$replace$("","\_")))$

entry.grid$($row$=$i$,$ column$=1,$ padx$=5,$ pady$=5)$

entries$[$label$]=$ entry

tree $=$ ttk$.$Treeview$($details$\_$window, columns$=(\text{'}$Course ID$\text{'},$ 'Payment'$),$ show$=$'headings'$)$

tree.heading$(\text{'}$Course ID$\text{'},$ text$=$'Course ID$\text{'})$

tree.heading$(\text{'}$Payment$\text{'},$ text$=$'Payment'$)$

tree.grid$($row$=$len$($labels$),$ column$=0,$ columnspan$=2,$ padx$=5,$ pady$=5,$ sticky$=$'nsew'$)$

for course$\_$id$,$ payment in student.payments.items$()$:

tree.insert$(\text{'}\text{'},$ 'end', values$=($course$\_$id$,$ f$"$$$\{$payment$\}"))$

save$\_$btn $=$ ttk$.$Button$($details$\_$window, text$=$"Save", command$=$lambda: self.save$\_$student$\_$changes$($student$,$ entries$))$

save$\_$btn$.$grid$($row$=$len$($labels$)+1,$ column$=1,$ padx$=5,$ pady$=10)$

def save$\_$student$\_$changes$($self$,$ student, entries$)$:

for label, entry in entries.items$()$:

setattr$($student$,$ label.lower$().$replace$("","\_"),$ entry.get$())$

messagebox.showinfo$("$Update Successful", f$"$Updated $\{$student$.$name$\}\text{'}$s details successfully"$)$

def view$\_$teachers$($self$)$:

teacher$\_$window $=$ tk$.$Toplevel$($self$.$root$)$

teacher$\_$window.title$("$List of Teachers"$)$

for index, teacher in enumerate$($self$.$teachers$)$:

teacher$\_$info $=$ f$"\{$teacher$.$name$\}-\{$teacher$.$working$\_$hours$\}"$

ttk$.$Label$($teacher$\_$window, text$=$teacher$\_$info$).$grid$($row$=$index, column$=0,$ padx$=5,$ pady$=5)$

how to write a unit test for a save students changes