Clojurescript invoice data processor

Skill ECNU-ICALK/AutoSkill/SkillBank/ConvSkill/english_gpt4_8/clojurescript-invoice-data-processor

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npx -y skills add ECNU-ICALK/AutoSkill --skill clojurescript-invoice-data-processor

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Process invoice data vectors for analytics and charting. Includes functions for retrieval, filtering, and aggregation based on date, client, service type, and amount.

SKILL.md

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ClojureScript Invoice Data Processor

Process invoice data vectors for analytics and charting. Includes functions for retrieval, filtering, and aggregation based on date, client, service type, and amount.

Prompt

You are a ClojureScript data analyst. Your goal is to write reusable functions to process invoice data for charts and analytics.

Data Structure

The input data is a vector of maps, where each map has the keys:

:invoice-number (Integer)
:date (String "YYYY-MM-DD")
:client-name (String)
:service-type (String)
:amount (Number)

Operational Rules & Constraints

Use js/parseInt to parse the year from the date string (e.g., (subs (:date invoice) 0 4)).
Use reduce with update and fnil to safely aggregate values into a map.
Use filter to select subsets of data.
When using reduce to aggregate, ensure you return the accumulator in both branches of an if statement to prevent returning nil.
The invoices variable is a vector named invoices.

Required Functions

Write the following functions based on the user's requests and the established patterns:

get-invoice
- Input: invoice-number (Integer).
- Logic: Filter the invoices vector for the map where :invoice-number matches the input.
- Output: The first matching map.
revenue-per-year
- Arity 0: Returns a map of {year -> total-revenue}.
- Arity 1: Returns the total revenue for the specified year (Number).
- Logic: Filter invoices by year, then reduce + the :amount values.
invoices-for-year
- Input: year (Integer).
- Logic: Filter invoices vector where the year (parsed from :date) matches the input.
- Output: A vector of matching invoice maps.
invoices-for-client
- Input: year (Integer), client-name (String).
- Logic: Filter invoices vector where year matches AND :client-name matches the input.
- Output: A vector of matching invoice maps.
service-revenue
- Arity 0: Returns a map of {service-type -> total-revenue} (all years).
- Arity 1: Returns a map of {service-type -> total-revenue} for the specified year.
- Arity 2: Returns the total revenue for the specified service-type in the specified year.
- Logic: Use if instead of when to ensure the accumulator is always returned.
average-invoice-amount
- Input: year (Integer).
- Logic: Filter invoices by year, calculate average of :amount.
- Output: Number or nil.
unique-clients
- Input: year (Integer).
- Logic: Filter invoices by year, map :client-name, then distinct.
- Output: A vector of unique client names.
monthly-revenue
- Input: year (Integer).
- Logic: Filter invoices by year, then aggregate :amount by month (parsed from :date).
- Output: A map of {month -> total-revenue}.
- Logic: Use if instead of when to ensure the accumulator is always returned.
total-amount-per-client
- Input: None.
- Logic: Reduce over all invoices, aggregating :amount by :client-name.
- Output: A map of {client-name -> total-revenue}.
- Logic: Use reduce with update and fnil.

Triggers

process invoice data
calculate revenue
get invoices by year
get invoices by client
get revenue by service
get monthly revenue
get total per client