504 lines
20 KiB
Python
504 lines
20 KiB
Python
#!/usr/bin/python3
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import sys
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import json
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import math
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from courses import mockCourses, activeCourses
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from mockStudents import generateMockStudents, getSampleStudents
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from generateCourses import getSampleCourses
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'''
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Block 1-4 is first semester while
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block 5-8 is second semester
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'''
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'''
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schedule example:
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schedule: {
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"block1": "className",
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"block2": "className",
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"block3": "className",
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"block4": "className"
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"block5": "className",
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"block6": "className",
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"block7": "className",
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"block8": "className"
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}
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'''
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'''
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running example:
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running: {
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"block1": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}},
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"block2": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}},
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"block3": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}},
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"block4": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}},
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"block5": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}},
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"block6": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}},
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"block7": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}},
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"block8": {classCode:{"className":name,"students":[student Name]},classCode:{"className":name,"students":[student Name]}}
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}
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'''
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# Error 1: No classes in schedule can fit this student
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# Error 2: No more room in schedule for another class
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# 400 by default
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studentsNum = 340
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err1, err2, = 0,0
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minReq, median, classCap, blockClassLimit = 18, 24, 30, 12
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mockStudents = []
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running = {
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"block1": {},
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"block2": {},
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"block3": {},
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"block4": {},
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"block5": {},
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"block6": {},
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"block7": {},
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"block8": {}
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}
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# Currently V1 has an average of 9.4% success rate, with an avverage of 90.6% error rate
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def generateScheduleV1():
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global err1, err2
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# Collect data and calculate schedules
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for student in mockStudents:
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# Tally class request
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for request in student["requests"]:
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mockCourses[request]["totalrequests"] += 1
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mockCourses[request]["studentindexes"].append(mockStudents.index(student))
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# Add course to active list if enough requests
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if mockCourses[request]["totalrequests"] > minReq and mockCourses[request]["code"] not in activeCourses: activeCourses[mockCourses[request]["code"]] = mockCourses[request]
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for student in mockStudents:
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alternateOffset = len(student["requests"])-8
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alternateIndex = 8
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for i in range(len(student["requests"])-alternateOffset): # Subtract x classes as they are alternatives
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currentCourse = student["requests"][i]
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generate = True
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while generate:
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# If class is allowed to run
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if currentCourse in activeCourses:
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blockIndex = 1
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courseNum = 1
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getFreeBlock = True
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while getFreeBlock:
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block = f"block{blockIndex}"
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cname = f"{mockCourses[currentCourse]['name']}-{courseNum}"
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if cname in running[block]:
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if student["schedule"][block] == "": # Add student to class
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if len(running[block][cname]["students"]) < classCap:
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running[block][cname]["students"].append(student["name"])
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student["schedule"][block] = cname
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getFreeBlock = False
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else: # Find next available class or create new one
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if blockIndex == 8: # No available classes
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if len(student["requests"]) == 8:
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# This student never had any alternatives
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# How to solve?
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# print(f"\nError 1: No more available classes for student {student['name']}")
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generate = False
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else:
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if alternateIndex <= (len(student["requests"]) - 1):
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currentCourse = student["requests"][alternateIndex]
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alternateIndex += 1
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else: # No more alterantive
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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getFreeBlock = False
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else:
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if (mockCourses[currentCourse]["teachers"] - courseNum) > 0:
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courseNum += 1
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else:
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blockIndex += 1
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courseNum = 1
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else:
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if blockIndex == 8: # No available classes
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if len(student["requests"]) == 8:
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# This student never had any alternatives
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# How to solve?
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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else:
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if alternateIndex <= (len(student["requests"]) - 1):
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currentCourse = student["requests"][alternateIndex]
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alternateIndex += 1
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else: # No more alternatives
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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getFreeBlock = False
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else:
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blockIndex += 1
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courseNum = 1
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else:
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if blockIndex == 8:
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# Class does not exists
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# Create new class in first available slot
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blockNum = 1
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while True:
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newBlock = f"block{blockNum}"
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if cname not in running[newBlock] and len(running[newBlock]) < blockClassLimit:
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if student["schedule"][newBlock] == "": # Add student to class
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running[newBlock][cname] = {
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"name": mockCourses[currentCourse]["name"],
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"students": [student["name"]]
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}
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student["schedule"][newBlock] = cname
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break
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else:
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if blockNum == 8:
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# All student classes have been filled
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break
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else:
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blockNum += 1
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courseNum = 1
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else:
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if blockNum == 8:
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# No room in school for more classes
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# print(f"\nError 2: No more room in school for another class")
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err2 += 1
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break
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else:
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if (mockCourses[currentCourse]["teachers"] - courseNum) > 0:
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courseNum += 1
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else:
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blockNum += 1
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courseNum = 1
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break
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else:
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blockIndex += 1
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courseNum = 1
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break
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elif currentCourse not in activeCourses:
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if len(student["requests"]) == 8:
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# This student never had any alternatives
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# How to solve?
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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else:
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if alternateIndex <= (len(student["requests"]) - 1):
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currentCourse = student["requests"][alternateIndex]
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alternateIndex += 1
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else: # Out of alternatives
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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# Currently V2 has an average of 0.35% success rate, with an avverage of 99.65% error rate
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def generateScheduleV2():
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global err1, err2
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# Collect data and calculate schedules
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for student in mockStudents:
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# Tally class request
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for request in student["requests"]:
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mockCourses[request]["totalrequests"] += 1
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mockCourses[request]["studentindexes"].append(mockStudents.index(student))
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# Add course to active list if enough requests
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if mockCourses[request]["totalrequests"] > minReq and mockCourses[request]["code"] not in activeCourses: activeCourses[mockCourses[request]["code"]] = mockCourses[request]
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# calculate # of times to run class
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for i in range(len(activeCourses)):
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index = list(activeCourses)[i]
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classRunCount = math.floor(activeCourses[index]["totalrequests"] / classCap)
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# If there is minReq+ requests left, 1 more class could be run
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if (activeCourses[index]["totalrequests"] % classCap) > minReq: classRunCount += 1
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activeCourses[index]["classRunCount"] = classRunCount
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newBlockIndex = 1
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newCourseNum = 1
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while classRunCount > 0:
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block = f"block{newBlockIndex}"
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cname = f"{activeCourses[index]['name']}-{newCourseNum}"
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if cname not in running[block] and len(running[block]) < blockClassLimit:
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# Generate class and sub 1 from classRunCount
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running[block][cname] = {
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"name": activeCourses[index]["name"],
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"students": []
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}
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classRunCount -= 1
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else:
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if newBlockIndex == 8:
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if (activeCourses[index]["teachers"] - newCourseNum) > 0:
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newCourseNum += 1
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newBlockIndex = 1
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else:
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# No room in school for more classes
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# print(f"\nError 2: No more room in school for another class")
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err2 += 1
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classRunCount = 0
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else: newBlockIndex += 1
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for student in mockStudents:
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alternateOffset = len(student["requests"])-8
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alternateIndex = 8
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for i in range(len(student["requests"])-alternateOffset): # Subtract x classes as they are alternatives
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currentCourse = student["requests"][i]
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generate = True
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courseNum = 1
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while generate:
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# If class is allowed to run
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if currentCourse in activeCourses:
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blockIndex = 1
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getFreeBlock = True
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cname = f"{mockCourses[currentCourse]['name']}-{courseNum}"
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while getFreeBlock:
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block = f"block{blockIndex}"
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if cname in running[block]:
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if student["schedule"][block] == "": # Add student to class
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if len(running[block][cname]["students"]) < classCap:
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running[block][cname]["students"].append(student["name"])
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student["schedule"][block] = cname
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getFreeBlock = False
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else: # Find next available class or create new one
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if blockIndex == 8: # No available classes
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if (activeCourses[index]["teachers"] - newCourseNum) > 0:
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newCourseNum += 1
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newBlockIndex = 1
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else:
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# No room in school for more classes
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# print(f"\nError 2: No more room in school for another class")
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err2 += 1
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classRunCount = 0
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if len(student["requests"]) == 8:
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# This student never had any alternatives
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# How to solve?
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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else:
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if alternateIndex <= (len(student["requests"]) - 1):
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currentCourse = student["requests"][alternateIndex]
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alternateIndex += 1
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else: # No more alterantive
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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getFreeBlock = False
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else: blockIndex += 1
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else:
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if blockIndex == 8: # No available classes
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if len(student["requests"]) == 8:
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# This student never had any alternatives
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# How to solve?
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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else:
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if alternateIndex <= (len(student["requests"]) - 1):
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currentCourse = student["requests"][alternateIndex]
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alternateIndex += 1
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else: # No more alternatives
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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getFreeBlock = False
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else:
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if (mockCourses[currentCourse]["teachers"] - courseNum) > 0:
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courseNum += 1
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else:
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blockIndex += 1
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courseNum = 1
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else:
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if blockIndex == 8:
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# Class does not exists
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# Resort to alternative
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if alternateIndex <= (len(student["requests"]) - 1):
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currentCourse = student["requests"][alternateIndex]
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alternateIndex += 1
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else: # Out of alternatives
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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break
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else:
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if (mockCourses[currentCourse]["teachers"] - courseNum) > 0:
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courseNum += 1
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else:
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blockIndex += 1
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courseNum = 1
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break
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elif currentCourse not in activeCourses:
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if len(student["requests"]) == 8:
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# This student never had any alternatives
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# How to solve?
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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else:
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if alternateIndex <= (len(student["requests"]) - 1):
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currentCourse = student["requests"][alternateIndex]
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alternateIndex += 1
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else: # Out of alternatives
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# print(f"\nError 1: No more available classes for student {student['name']}")
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err1 += 1
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generate = False
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# V3 differs a lot by V1/2 as it does not focus on fitting the classes
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# into the time table first.
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# It starts by trying to get all classes full and give all students a full class list.
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# Then it starts to attempt to fit all classes into a timetable, making corretions along
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# the way. Corrections being moving a students class
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def generateScheduleV3(students, courses):
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# Step 1 - Calculate which classes can run
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global err1, err2
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for student in students:
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# Tally class request
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for request in student["requests"]:
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if not bool([i for i in ["XAT--12A-S", "XAT--12B-S"] if (i in request["CrsNo"])]): # Filters any requested study blocks (flex: no class block)
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code = request["CrsNo"]
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courses[code]["Requests"] += 1
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# Add course to active list if enough requests
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if courses[code]["Requests"] > minReq and courses[code]["CrsNo"] not in activeCourses:
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activeCourses[code] = courses[code]
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# Step 2 - Generate class list without timetable
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selectedCourses = {}
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emptyClasses = {} # List of all classes with how many students should be entered during generation
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# calculate # of times to run class
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for i in range(len(activeCourses)):
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index = list(activeCourses)[i]
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if index not in emptyClasses: emptyClasses[index] = {}
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classRunCount = math.floor(activeCourses[index]["Requests"] / median)
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remaining = activeCourses[index]["Requests"] % median
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# Put # of classRunCount classes in emptyClasses
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for j in classRunCount:
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emptyClasses[index][f"{activeCourses[index]['Description']}-{j}"] = {
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"CrsNo": index,
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"Description": activeCourses[index]["Description"],
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"expectedLen": median # Number of students expected in this class / may be altered
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}
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SomeCondition = True # Just so I don't get an error
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# If remaining fit in open slots in existing classes
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# equally disperse remaining into existing classes
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if remaining <= classRunCount * (classCap - median):
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for j in classRunCount:
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# TODO: Equally disperse remaining into existing classes
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pass
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# Else if we can't fit remaining in,
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# and there is more than 12, equally drain expectedLen from each classRunCount
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# to fill another class, add 1 to classRunCount
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elif remaining > classRunCount * (classCap - median) and SomeCondition:
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pass
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# else fold students into another class (alternate?)
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#=================================================================
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classNum = classRunCount
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for student in students:
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for request in (request for request in student["requests"] if not request["alt"]):
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currentCourse = request["CrsNo"]
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if currentCourse == activeCourses[index]["CrsNo"]:
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cname = f"{activeCourses[index]['Description']}-{classNum-(classRunCount-1)}"
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if cname in selectedCourses:
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if student["Pupil #"] not in selectedCourses[cname]["students"]:
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if len(selectedCourses[cname]["students"]) < classCap:
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# Class exists and there is room
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selectedCourses[cname]["students"].append(student["Pupil #"])
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elif len(selectedCourses[cname]["students"]) == classCap:
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classRunCount -= 1
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elif cname not in selectedCourses:
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selectedCourses[cname] = {
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"students": [student["Pupil #"]],
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"CrsNo": currentCourse,
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"Description": courses[currentCourse]["Description"]
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}
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# for course in selectedCourses:
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# print("Class: ", selectedCourses[course]["Description"])
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# print("Students: ", len(selectedCourses[course]["students"]), "\n")
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# print("==============================")
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# print("Total: ", len(selectedCourses))
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with open("classes.json", "w") as outfile:
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json.dump(selectedCourses, outfile, indent=2)
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# Step 3 - Attempt to fit classes into timetable
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# Step 4 - Evaluate, move classes or students to fix
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return []
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if __name__ == '__main__':
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if len(sys.argv) == 1:
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print("Missing argument")
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exit()
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if sys.argv[1].upper() == 'V1':
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if len(sys.argv) == 3:
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try:
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studentsNum = int(sys.argv[2])
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except:
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print("Error parsing number of students")
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exit()
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print("Processing...")
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mockStudents = generateMockStudents(studentsNum)
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generateScheduleV1()
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elif sys.argv[1].upper() == 'V2':
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if len(sys.argv) == 3:
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try:
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studentsNum = int(sys.argv[2])
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except:
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print("Error parsing number of students")
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exit()
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print("Processing...")
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mockStudents = generateMockStudents(studentsNum)
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generateScheduleV2()
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elif sys.argv[1].upper() == 'V3':
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print("Processing...")
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sampleStudents = getSampleStudents(True)
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samplemockCourses = getSampleCourses(True)
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coursesList = generateScheduleV3(sampleStudents, samplemockCourses)
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else:
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print("Invalid argument")
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exit()
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# print("\n")
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# print(f"Error 1: x{err1}")
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# print(f"Error 2: x{err2}")
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# print("\n")
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### Displays the number of students in each class
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# for block in running:
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# print(f"\nBlock: {block}")
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# print("=====================")
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# for cl in running[block]:
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# name = running[block][cl]["name"]
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# students = len(running[block][cl]["students"])
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# print(f"Class: {name} | Students: {students}")
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# Count errors in students schedules
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# errors = 0
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# for i in range(len(mockStudents)):
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# count = 0
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# for course in mockStudents[i]["schedule"]:
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# if mockStudents[i]["schedule"][course]=="": count+=1
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# if count > 0: errors += 1
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# print(f"{errors}/{studentsNum} student(s) have a issue with their schedule")
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# with open("schedule.json", "w") as outfile:
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# json.dump(running, outfile, indent=2)
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# with open("students.json", "w") as outfile:
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# json.dump(mockStudents, outfile, indent=2)
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print("Done")
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