Handle Roo provider pricing correctly (#8802)

src/api/providers/fetchers/roo.ts

@@ -1,6 +1,7 @@
 import { RooModelsResponseSchema } from "@roo-code/types"
 
 import type { ModelRecord } from "../../../shared/api"
+import { parseApiPrice } from "../../../shared/cost"
 
 import { DEFAULT_HEADERS } from "../constants"
 
@@ -71,10 +72,10 @@ export async function getRooModels(baseUrl: string, apiKey?: string): Promise<Mo
 				const supportsImages = tags.includes("vision")
 
 				// Parse pricing (API returns strings, convert to numbers)
-				const inputPrice = parseFloat(pricing.input)
-				const outputPrice = parseFloat(pricing.output)
-				const cacheReadPrice = pricing.input_cache_read ? parseFloat(pricing.input_cache_read) : undefined
-				const cacheWritePrice = pricing.input_cache_write ? parseFloat(pricing.input_cache_write) : undefined
+				const inputPrice = parseApiPrice(pricing.input)
+				const outputPrice = parseApiPrice(pricing.output)
+				const cacheReadPrice = pricing.input_cache_read ? parseApiPrice(pricing.input_cache_read) : undefined
+				const cacheWritePrice = pricing.input_cache_write ? parseApiPrice(pricing.input_cache_write) : undefined
 
 				models[modelId] = {
 					maxTokens,

src/api/providers/roo.ts

@@ -12,6 +12,12 @@ import { DEFAULT_HEADERS } from "./constants"
 import { BaseOpenAiCompatibleProvider } from "./base-openai-compatible-provider"
 import { getModels, flushModels, getModelsFromCache } from "../providers/fetchers/modelCache"
 
+// Extend OpenAI's CompletionUsage to include Roo specific fields
+interface RooUsage extends OpenAI.CompletionUsage {
+	cache_creation_input_tokens?: number
+	cost?: number
+}
+
 export class RooHandler extends BaseOpenAiCompatibleProvider<string> {
 	private authStateListener?: (state: { state: AuthState }) => void
 	private fetcherBaseURL: string
@@ -124,10 +130,14 @@ export class RooHandler extends BaseOpenAiCompatibleProvider<string> {
 			}
 
 			if (chunk.usage) {
+				const usage = chunk.usage as RooUsage
 				yield {
 					type: "usage",
-					inputTokens: chunk.usage.prompt_tokens || 0,
-					outputTokens: chunk.usage.completion_tokens || 0,
+					inputTokens: usage.prompt_tokens || 0,
+					outputTokens: usage.completion_tokens || 0,
+					cacheWriteTokens: usage.cache_creation_input_tokens,
+					cacheReadTokens: usage.prompt_tokens_details?.cached_tokens,
+					totalCost: usage.cost ?? 0,
 				}
 			}
 		}