( request: ProviderRequest, providerId = 'google' )
| 169 | * Converts OpenAI-style request format to Gemini format |
| 170 | */ |
| 171 | export function convertToGeminiFormat( |
| 172 | request: ProviderRequest, |
| 173 | providerId = 'google' |
| 174 | ): { |
| 175 | contents: Content[] |
| 176 | tools: GeminiToolDef[] | undefined |
| 177 | systemInstruction: Content | undefined |
| 178 | } { |
| 179 | const contents: Content[] = [] |
| 180 | let systemInstruction: Content | undefined |
| 181 | |
| 182 | if (request.systemPrompt) { |
| 183 | systemInstruction = { parts: [{ text: request.systemPrompt }] } |
| 184 | } |
| 185 | |
| 186 | if (request.context) { |
| 187 | contents.push({ role: 'user', parts: [{ text: request.context }] }) |
| 188 | } |
| 189 | |
| 190 | if (request.messages?.length) { |
| 191 | for (const message of request.messages) { |
| 192 | if (message.role === 'system') { |
| 193 | if (!systemInstruction) { |
| 194 | systemInstruction = { parts: [{ text: message.content ?? '' }] } |
| 195 | } else if (systemInstruction.parts?.[0] && 'text' in systemInstruction.parts[0]) { |
| 196 | systemInstruction.parts[0].text = `${systemInstruction.parts[0].text}\n${message.content}` |
| 197 | } |
| 198 | } else if (message.role === 'user' || message.role === 'assistant') { |
| 199 | const geminiRole = message.role === 'user' ? 'user' : 'model' |
| 200 | const parts = buildGeminiMessageParts(message.content, message.files, providerId) as Part[] |
| 201 | |
| 202 | if (parts.length > 0) { |
| 203 | contents.push({ role: geminiRole, parts }) |
| 204 | } |
| 205 | |
| 206 | if (message.role === 'assistant' && message.tool_calls?.length) { |
| 207 | const functionCalls = message.tool_calls.map((toolCall) => ({ |
| 208 | functionCall: { |
| 209 | name: toolCall.function?.name, |
| 210 | args: JSON.parse(toolCall.function?.arguments || '{}') as Record<string, unknown>, |
| 211 | }, |
| 212 | })) |
| 213 | contents.push({ role: 'model', parts: functionCalls }) |
| 214 | } |
| 215 | } else if (message.role === 'tool') { |
| 216 | if (!message.name) { |
| 217 | logger.warn('Tool message missing function name, skipping') |
| 218 | continue |
| 219 | } |
| 220 | let responseData: Record<string, unknown> |
| 221 | try { |
| 222 | const parsed = JSON.parse(message.content ?? '{}') |
| 223 | responseData = ensureStructResponse(parsed) |
| 224 | } catch { |
| 225 | responseData = { output: message.content } |
| 226 | } |
| 227 | contents.push({ |
| 228 | role: 'user', |
no test coverage detected