feat: add total supply and annual supply change to overview #460
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This enhances the overview by showing total supply alongside the yearly supply change, giving clearer context for the inflation metric.
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Pull request overview
This PR enhances the protocol overview by adding two new metrics: the current total supply of LPT tokens and the annual supply change rate (1-year inflation/deflation). The implementation replaces the unused totalTokenSupply API endpoint with a more comprehensive supply-change endpoint that calculates supply metrics over a 365-day period.
Key changes:
- Introduces a new
/supply-changeAPI endpoint that queries historical supply data from the subgraph - Adds UI components to display total supply and annual supply change percentage in the RoundStatus component
- Removes the old
totalTokenSupplyAPI endpoint that was not being used
Reviewed changes
Copilot reviewed 5 out of 6 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| pages/api/totalTokenSupply.tsx | Removes unused API endpoint that only returned total supply |
| pages/api/supply-change.tsx | Adds new API endpoint to calculate supply metrics over 365 days, returning start/end dates, supplies, and the supply change percentage |
| lib/api/types/get-supply-change.ts | Defines TypeScript type for the supply change API response |
| hooks/useSwr.tsx | Adds useSupplyChangeData hook following existing SWR patterns |
| components/RoundStatus/index.tsx | Integrates new metrics into the UI with tooltips, removes padding adjustment, and adds display logic for both total supply and annual supply change |
| pages/treasury/create-proposal.tsx | Minor indentation fix for Text component (unrelated formatting improvement) |
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Ensure the new supply-change route correctly handles errors. Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Ensure the supplyChange check properly handles both null and undefined to avoid displaying misleading formatted values when data is unavailable. Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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This enhances the overview by showing total supply alongside the yearly supply change, giving clearer context for the inflation metric.
@ECWireless, @mehrdadmms please check with governance advisory board members @b3nnnp and @dob on whether and how we want to showcase this.