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# Import required libraries
import streamlit as st
import json
import clipboard
from main import genetic_algorithm, polish_errors, calculate_errors, update_genetic_algorithm, calculate_diff
# Initialize session state
if 'services' not in st.session_state:
st.session_state.services = {}
if 'users' not in st.session_state:
st.session_state.users = {}
if 'solution' not in st.session_state:
st.session_state.solution = {}
# App title
st.title('Services and Users Assignment Center')
# Add sliders for population_size, num_generations, and mutation_rate
st.subheader('Genetic Algorithm Parameters')
population_size = st.slider('Population Size', min_value=500, max_value=5000, value=1500, step=100)
num_generations = st.slider('Number of Generations', min_value=1000, max_value=10000, value=2500, step=250)
mutation_rate = st.slider('Mutation Rate', min_value=0.0, max_value=1.0, value=0.05, step=0.01)
# Button to run the genetic algorithm
new_generation_run = st.button('Run new solution')
update_generation_run = st.button('Update solution')
if new_generation_run:
# Call the genetic_algorithm function and get the best_solution
best_solution = genetic_algorithm(
services=st.session_state.services,
users=st.session_state.users,
population_size=population_size,
num_generations=num_generations,
mutation_rate=mutation_rate
)
# Save the state of the current best solution
st.session_state.solution = best_solution
# Convert the best_solution to JSON
best_solution_json = json.dumps(st.session_state.solution, indent=4)
best_solution_errors = calculate_errors(st.session_state.solution, st.session_state.services,
st.session_state.users)
best_solution_errors = polish_errors(best_solution_errors)
best_solution_errors_json = json.dumps(best_solution_errors, indent=4)
# Display the output JSON in a read-only form
st.subheader('Best solution JSON')
st.text_area('Best solution',
value=best_solution_json, height=400, max_chars=None, key=None, disabled=True)
st.text_area('Unmet constraints',
value=best_solution_errors_json, height=200, max_chars=None, key=None, disabled=True)
if st.button('Copy solution to Clipboard'):
clipboard.copy(best_solution_json)
if st.button('Copy unmet constraints to Clipboard'):
clipboard.copy(best_solution_errors_json)
if update_generation_run:
# Call the genetic_algorithm function and get the best_solution
best_updated_solution = update_genetic_algorithm(
prev_solution=st.session_state.solution,
updated_services=st.session_state.services,
updated_users=st.session_state.users,
population_size=population_size,
num_generations=num_generations,
mutation_rate=mutation_rate
)
change_report = calculate_diff(best_updated_solution, st.session_state.solution)
change_report_json = json.dumps(change_report, indent=4)
# Convert the best_solution to JSON
best_updated_solution_json = json.dumps(st.session_state.solution, indent=4)
best_updated_solution_errors = calculate_errors(
st.session_state.solution, st.session_state.services, st.session_state.users
)
best_updated_solution_errors = polish_errors(best_updated_solution_errors)
best_updated_solution_errors_json = json.dumps(best_updated_solution_errors, indent=4)
# Display the output JSON in a read-only form
st.subheader('Best updated solution JSON')
st.text_area('Best updated solution',
value=best_updated_solution_json, height=600, max_chars=None, key=None, disabled=True)
st.text_area('Updated unmet constraints',
value=best_updated_solution_errors_json, height=300, max_chars=None, key=None, disabled=True)
st.text_area('Change report',
value=change_report_json, height=200, max_chars=None, key=None, disabled=True)
if st.button('Copy updated solution to Clipboard'):
clipboard.copy(best_updated_solution_json)
if st.button('Copy updated unmet constraints to Clipboard'):
clipboard.copy(best_updated_solution_errors_json)
if st.button('Save this updated solution over the last fully generated one'):
# Save the state of the current best solution
st.session_state.solution = best_updated_solution
# Sidebar for uploading previously generated JSON
with st.sidebar.expander('Previously generated solution JSON'):
uploaded_solution_json = st.text_area('Paste your previously generated JSON here',
value=json.dumps(st.session_state.get('solution', ''), indent=4))
merge_json = st.button('Upload previously generated JSON')
reset_json = st.button('Reset previously generated JSON')
if reset_json:
st.session_state.solution = {}
if merge_json and uploaded_solution_json:
try:
st.session_state.solution = json.loads(uploaded_solution_json)
st.success('JSON loaded successfully')
except json.JSONDecodeError:
st.error('Invalid JSON format')
# Sidebar for uploading previously user and service description JSON
with st.sidebar.expander('Previously generated user and service description JSON'):
previously_generated_user_service_json = {
'services': st.session_state.services,
'users': st.session_state.users
}
uploaded_user_service_json = st.text_area('Paste your user and service JSON here',
value=json.dumps(previously_generated_user_service_json, indent=4)
)
merge_json = st.button('Merge user and service description JSON')
reset_json = st.button('Reset user and service description JSON')
if reset_json:
st.session_state.services = {}
st.session_state.users = {}
if merge_json and uploaded_user_service_json:
try:
loaded_data = json.loads(uploaded_user_service_json)
st.session_state.services.update(loaded_data.get('services', {}))
st.session_state.users.update(loaded_data.get('users', {}))
st.success('JSON loaded successfully')
except json.JSONDecodeError:
st.error('Invalid JSON format')
# Update existing user or service object
with st.sidebar.expander('Update existing user or service'):
object_type = st.selectbox('Choose object type', ('Service', 'User'))
if object_type == 'Service':
service_key = st.selectbox('Select a service', list(st.session_state.services.keys()), key='update_service_key')
if service_key:
if st.button('Load Service'):
st.session_state.service_name = service_key
st.session_state.min_val = st.session_state.services[service_key]['min']
st.session_state.rec_val = st.session_state.services[service_key]['rec']
st.session_state.max_val = st.session_state.services[service_key]['max']
st.session_state.priority = st.session_state.services[service_key]['priority']
if st.button('Drop Service'):
del st.session_state.services[service_key]
elif object_type == 'User':
user_key = st.selectbox('Select a user', list(st.session_state.users.keys()), key='update_user_key')
if user_key:
if st.button('Load User'):
st.session_state.user_name = user_key
st.session_state.max_assignments = st.session_state.users[user_key]['max_assignments']
st.session_state.preferences = st.session_state.users[user_key]['preferences']
st.session_state.cannot_assign = st.session_state.users[user_key]['cannot_assign']
if st.button('Drop User'):
del st.session_state.users[user_key]
# Add a service form
with st.form(key='service_form'):
st.subheader('Add a Service')
service_name = st.text_input('Service Name', value=st.session_state.get('service_name', ''))
min_val = st.number_input('Minimum Value', value=st.session_state.get('min_val', 0))
rec_val = st.number_input('Recommended Value', value=st.session_state.get('rec_val', 0))
max_val = st.number_input('Maximum Value', value=st.session_state.get('max_val', 0))
priority = st.number_input('Priority', value=st.session_state.get('priority', 0))
submit_service = st.form_submit_button('Save Service')
# Add a user form
with st.form(key='user_form'):
st.subheader('Add a User')
user_name = st.text_input('User Name', key='user_name', value=st.session_state.get('user_name', ''))
max_assignments = st.number_input('Max Assignments', value=st.session_state.get('max_assignments', 0),
key='max_assignments')
preferences = st.multiselect('Preferences', options=list(st.session_state.services.keys()),
default=st.session_state.get('preferences', []), key='preferences')
cannot_assign = st.multiselect('Cannot Assign', options=list(st.session_state.services.keys()),
default=st.session_state.get('cannot_assign', []), key='cannot_assign')
submit_user = st.form_submit_button('Save User')
# Add the submitted service to the services dictionary
if submit_service:
st.session_state.services[service_name] = {
'min': min_val,
'rec': rec_val,
'max': max_val,
'priority': priority
}
# Add the submitted user to the users dictionary
if submit_user:
st.session_state.users[user_name] = {
'max_assignments': max_assignments,
'preferences': preferences,
'cannot_assign': cannot_assign
}
# Combine services and users dictionaries
combined_data = {
'services': st.session_state.services,
'users': st.session_state.users
}
# Convert combined_data to JSON
json_data = json.dumps(combined_data, indent=4)
# Display the generated JSON
st.subheader('Generated user and services JSON')
st.code(json_data, language='json')
# Button to copy JSON to clipboard
if st.button('Copy JSON to Clipboard'):
clipboard.copy(json_data)
st.success('JSON copied to clipboard!')
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