reimbursinator/back/backend/policy.py

# simple_policy.py
from datetime import date
from policy import Policy, Section

# - For the rules, should one refer to fields by 'section.fields.x'
# or by the section name eg. 'general_section.fields.x'?


#### General
#### Section 0
general_section = Section(
    title="General Info",
    html_description="",
    fields={
        "destination": {"label": "Destination City", "type": "string"}
    }
)

general_section.add_rule(
    title="Destination city check",
    rule=lambda report, section: section.field.destination == "Timbuktu",
    rule_break_text="What did the cowboy say about Tim, his wild horse?"
)

Policy.add_section(general_section)

#### Flight
#### Section 1
flight_section = Section(
    title="Flight Info",
    html_description="<p>Enter flight details here.</p>",
    fields={
        "international": {"label": "Is this an international flight?", "type": "boolean"},
        "departure_date": {"label": "Departure date", "type": "date"},
        "return_date": {"label": "Return date", "type": "date"},
        "fare": {"label": "Fare", "type": "decimal"},
    }
)

flight_section.add_rule(
    title="Airline fare pre-approval check",
    rule=lambda report, section: section.fields.fare < 500, 
    rule_break_text="Fares cannot be more than $500"
)

Policy.add_section(flight_section)

#### Lodging
#### Section 2
lodging_section = Section(
    title="Hotel Info",
    html_description="<p>Enter hotel info here.\nPer diem rates can be found at <a href='https://www.gsa.gov/travel/plan-book/per-diem-rates'></a></p>",
    fields={
        "check-in_date": {"label": "Check-in date", "type": "date"},
        "check-out_date": {"label": "Check-out date", "type": "date"},
        "rate": {"label": "Per diem nightly rate", "type": "decimal"},
        "cost": {"label": "Total Cost", "type": "decimal"}
    }
)

def nightly_rate_check(report, section):
    checkin_date = date(section.fields.checkin_date)
    checkout_date = date(section.fields.checkout_date)
    duration = checkout_date - checkin_date
    return section.fields.cost <= duration * section.fields.rate

section.add_rule(
    title="",
    rule=nightly_rate_check,
    rule_break_text="The average nightly rate cannot be more than the USGSA rate."
)

Policy.add_section(lodging_section)

#### Local Transportation
#### Section 3
transport_section = Section(
    title="Local Transportation",
    html_description="<p>How much did you spend on local transportation, in total?</p>",
    fields={
        "duration": {"label": "How many days was your trip?", "type": "decimal"},
        "cost": {"label": "Total cost", "type": "decimal"}
    }
)

transport_section.add_rule(
    title="Total cost check",
    rule=lambda report, section: section.fields.cost <= section.fields.duration * 10,
    rule_break_text="Local transportation costs must be less than $10 per day, on average."
)

Policy.add_section(transport_section)

#### Per Diem
#### Section 4
per_diem_section = Section(
    title="Per Diem",
    html_description="<p>Enter info about meals and incidentals here.\nPer diem rates can be found at <a href='https://www.gsa.gov/travel/plan-book/per-diem-rates'></a></p>",
    fields={
        "duration": {"label": "How many days was your trip?", "type": "decimal"},
        "rate": {"label": "What is the per diem rate for your destination?", "type": "decimal"},
        "cost": {"label": "Total Cost for meals and incidentals", "type": "decimal"}
    }
)

per_diem_section.add_rule(
    title="Per Diem Cost Check",
    rule=lambda report, section: section.fields.cost <= section.fields.duration * section.fields.rate,
    rule_break_text="The average cost per day for per diem expenses cannot be more than the rate specified by the USGSA."
)

Policy.add_section(per_diem_section)

'''
Section(
    title="",
    html_description="<p></p>",
    fields={
        "": {"label": "", "type": ""}
    }
)

section.add_rule(
    title="",
    rule=lambda report, section: boolean_statement,
    rule_break_text=""
)

#// or, for a rule which doesn’t apply to a specific section...
#//
#// add_general_rule(...)
'''