prices.md

# Prices

This section manages the prices for each fluid in the ecolyo application.

## Rules

- The next price to create is automatically pre-selected by default
- Only the 2 last prices plus the one to create are editable, the others are just searchable
- Each fluid has its own date frequency :
    - Electricity : one new price every 6 month (February and August)
    - Water : one new price every year
    - Gas : one new price every month
- When user creates a new price, the previous price's endDate is set to the new startDate minus 1 minute, so every prices keeps following in time.