feat: soporte Google Gemini en IA controller + UI

resources/views/ai_config.html

@@ -89,7 +89,8 @@
                                         'bg-green-100 text-green-700': item.provider === 'openai',
                                         'bg-orange-100 text-orange-700': item.provider === 'anthropic',
                                         'bg-blue-100 text-blue-700': item.provider === 'ollama',
-                                        'bg-gray-100 text-gray-700': !['qwen','openai','anthropic','ollama'].includes(item.provider)
+                                        'bg-yellow-100 text-yellow-700': item.provider === 'gemini',
+                                        'bg-gray-100 text-gray-700': !['qwen','openai','anthropic','ollama','gemini'].includes(item.provider)
                                     }" x-text="item.provider"></span>
                             </td>
                             <td class="py-2 px-3 text-gray-500 font-mono text-xs" x-text="item.model_name || '—'"></td>
@@ -143,17 +144,18 @@
                             <select x-model="form.provider" required
                                 class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-1 focus:ring-[#8eb02f]">
                                 <option value="">Seleccionar...</option>
-                                <option value="qwen">Qwen (Alibaba)</option>
+                                 <option value="qwen">Qwen (Alibaba)</option>
                                 <option value="openai">OpenAI</option>
                                 <option value="anthropic">Anthropic</option>
                                 <option value="groq">Groq</option>
                                 <option value="ollama">Ollama (local)</option>
+                                <option value="gemini">Google Gemini</option>
                                 <option value="otro">Otro</option>
                             </select>
                         </div>
                         <div>
                             <label class="block text-xs font-medium text-gray-600 mb-1">Modelo</label>
-                            <input x-model="form.model_name" type="text" placeholder="Ej: qwen2.5-72b-instruct"
+                            <input x-model="form.model_name" type="text" placeholder="Ej: gemini-2.0-flash"
                                 class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-1 focus:ring-[#8eb02f]" />
                         </div>
                     </div>
@@ -170,15 +172,19 @@
 
                     <div>
                         <label class="block text-xs font-medium text-gray-600 mb-1">Base URL
-                            <span x-show="form.provider !== 'ollama'" class="text-gray-400">(opcional — dejar vacío para usar el default del provider)</span>
+                            <span x-show="form.provider !== 'ollama' && form.provider !== 'gemini'" class="text-gray-400">(opcional — dejar vacío para usar el default del provider)</span>
                             <span x-show="form.provider === 'ollama'" class="text-blue-500">* requerido — incluir /v1 al final</span>
+                            <span x-show="form.provider === 'gemini'" class="text-gray-400">(fijo — no necesita)</span>
                         </label>
                         <input x-model="form.base_url" type="url"
-                            :placeholder="form.provider === 'ollama' ? 'http://10.0.1.15:11434/v1' : 'https://dashscope.aliyuncs.com/compatible-mode/v1'"
+                            :placeholder="form.provider === 'ollama' ? 'http://10.0.1.15:11434/v1' : form.provider === 'gemini' ? 'https://generativelanguage.googleapis.com' : 'https://dashscope.aliyuncs.com/compatible-mode/v1'"
                             class="w-full border border-gray-300 rounded-lg px-3 py-2 text-sm focus:outline-none focus:ring-1 focus:ring-[#8eb02f]" />
                         <p x-show="form.provider === 'ollama'" x-cloak class="text-[10px] text-blue-500 mt-1">
                             Interna (red Coolify): <code>http://10.0.1.15:11434/v1</code> — Pública: <code>https://ollama.u-s.app/v1</code>
                         </p>
+                        <p x-show="form.provider === 'gemini'" x-cloak class="text-[10px] text-yellow-600 mt-1">
+                            Usa <code>https://generativelanguage.googleapis.com/v1beta/models/{model}:streamGenerateContent?alt=sse</code>. Solo necesitas el API Key.
+                        </p>
                     </div>
 
                     <div>

rest/controllers/api/ia_controller.go

@@ -49,6 +49,27 @@ type openaiChatResp struct {
 	Choices []openaiChatChoice `json:"choices"`
 }
 
+type geminiPart struct {
+	Text string `json:"text"`
+}
+
+type geminiContent struct {
+	Parts []geminiPart `json:"parts"`
+}
+
+type geminiReq struct {
+	Contents []geminiContent `json:"contents"`
+}
+
+type geminiCandidate struct {
+	Content      geminiContent `json:"content"`
+	FinishReason *string       `json:"finishReason"`
+}
+
+type geminiResp struct {
+	Candidates []geminiCandidate `json:"candidates"`
+}
+
 func GeneraTextoStream(c *fiber.Ctx) error {
 	var data DataIa
 	if err := c.BodyParser(&data); err != nil {
@@ -77,9 +98,19 @@ func GeneraTextoStream(c *fiber.Ctx) error {
 	var endpoint string
 	var bodyReader io.Reader
 	useOpenAI := provider != "ollama" || hasV1
+	useGemini := provider == "gemini"
 
-	// OpenAI-compatible (openai, anthropic, qwen, o llameo con /v1)
+	if useGemini {
-	if !useOpenAI {
+		model := data.Model
+		endpoint = fmt.Sprintf("https://generativelanguage.googleapis.com/v1beta/models/%s:streamGenerateContent?alt=sse&key=%s", model, config.ApiKey)
+		gReq := geminiReq{
+			Contents: []geminiContent{
+				{Parts: []geminiPart{{Text: data.Prompt}}},
+			},
+		}
+		jsonData, _ := json.Marshal(gReq)
+		bodyReader = bytes.NewBuffer(jsonData)
+	} else if !useOpenAI {
 		// Native Ollama API
 		endpoint = baseURL + "/api/generate"
 		jsonData, _ := json.Marshal(data)
@@ -108,7 +139,9 @@ func GeneraTextoStream(c *fiber.Ctx) error {
 	req.Header.Set("Content-Type", "application/json")
 
 	// Auth
-	if provider == "ollama" && config.ApiKey != "" && config.ApiKey != "ollama" {
+	if useGemini {
+		// API key ya va en la URL
+	} else if provider == "ollama" && config.ApiKey != "" && config.ApiKey != "ollama" {
 		req.SetBasicAuth("ollama", config.ApiKey)
 	} else if config.ApiKey != "" {
 		req.Header.Set("Authorization", "Bearer "+config.ApiKey)
@@ -138,15 +171,38 @@ func GeneraTextoStream(c *fiber.Ctx) error {
 
 	c.Context().SetBodyStreamWriter(func(w *bufio.Writer) {
 		defer resp.Body.Close()
-		dec := json.NewDecoder(resp.Body)
+		scanner := bufio.NewScanner(resp.Body)
-		for {
+		scanner.Buffer(make([]byte, 0, 64*1024), 1024*1024)
-			if useOpenAI {
+		for scanner.Scan() {
+			line := scanner.Text()
+			if line == "" {
+				continue
+			}
+			if useGemini {
+				if !strings.HasPrefix(line, "data: ") {
+					continue
+				}
+				var msg geminiResp
+				if err := json.Unmarshal([]byte(line[6:]), &msg); err != nil {
+					continue
+				}
+				if len(msg.Candidates) > 0 && len(msg.Candidates[0].Content.Parts) > 0 {
+					text := msg.Candidates[0].Content.Parts[0].Text
+					if text != "" {
+						fmt.Fprint(w, text)
+						w.Flush()
+					}
+					if msg.Candidates[0].FinishReason != nil {
+						break
+					}
+				}
+			} else if useOpenAI {
 				var msg openaiChatResp
-				if err := dec.Decode(&msg); err != nil {
+				if err := json.Unmarshal([]byte(line), &msg); err != nil {
 					if err != io.EOF {
 						log.Printf("[IA] Error decodificando respuesta OpenAI: %v", err)
 					}
-					break
+					continue
 				}
 				if len(msg.Choices) == 0 {
 					continue
@@ -161,11 +217,8 @@ func GeneraTextoStream(c *fiber.Ctx) error {
 				}
 			} else {
 				var msg respuestaOllama
-				if err := dec.Decode(&msg); err != nil {
+				if err := json.Unmarshal([]byte(line), &msg); err != nil {
-					if err != io.EOF {
+					continue
-						log.Printf("[IA] Error decodificando respuesta Ollama: %v", err)
-					}
-					break
 				}
 				if msg.Error != "" {
 					log.Printf("[IA] Ollama error: %s", msg.Error)