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This is a Golang implementation of the Joy of Energy project, which provides functionality for managing meter readings, calculating energy usage, and comparing price plans.

• src/: Source code for the application
  • config/: Configuration files for price plans and test data
  • meters/: Meter-related functionality
  • pricePlans/: Price plan comparison logic
  • readings/: Reading storage and retrieval
  • usage/: Usage calculation services
• tests/: Unit tests for each module

• Go 1.21 or higher

1. Clone the repository
2. Navigate to the project directory
3. Rungo mod tidy to download dependencies
4. Run the application withgo run src/app.go

Execute all tests with:

gotest ./tests/...

• Meter Service: Manages meter creation and retrieval
• Reading Service: Stores and retrieves meter readings
• Price Plan Comparator: Calculates costs for different price plans
• Usage Service: Calculates total energy usage for a meter

The main application demonstrates:

• Creating meters
• Storing meter readings
• Calculating total usage
• Comparing price plans

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