// Unit and integration tests for q38max
// Created by Luxferre in 2026, released into the public domain

package main

import (
  "encoding/json"
  "net/http"
  "net/http/httptest"
  "strings"
  "testing"
  "time"
)

func TestChatMessageGetContentString(t *testing.T) {
  msg1 := ChatMessage{Role: "user", Content: "Hello world"}
  if msg1.GetContentString() != "Hello world" {
    t.Fatalf("expected 'Hello world', got %q", msg1.GetContentString())
  }

  msg2 := ChatMessage{
    Role: "user",
    Content: []interface{}{
      map[string]interface{}{"type": "text", "text": "Part 1 "},
      map[string]interface{}{"type": "text", "text": "Part 2"},
    },
  }
  if msg2.GetContentString() != "Part 1 Part 2" {
    t.Fatalf("expected 'Part 1 Part 2', got %q", msg2.GetContentString())
  }
}

func TestExtractThinkingContent(t *testing.T) {
  raw := "<think>\nAnalyzing the user's request...\n</think>\nHere is the answer."
  thinking, clean := ExtractThinkingContent(raw)
  if thinking != "Analyzing the user's request..." {
    t.Fatalf("unexpected thinking extraction: %q", thinking)
  }
  if clean != "Here is the answer." {
    t.Fatalf("unexpected clean text: %q", clean)
  }
}

func TestDetectToolCalls(t *testing.T) {
  xmlInput := "Let me check the weather.\n<tool_call>{\"name\": \"get_weather\", \"arguments\": {\"location\": \"Tokyo\"}}</tool_call>"
  calls, rem := DetectToolCalls(xmlInput)
  if len(calls) != 1 {
    t.Fatalf("expected 1 tool call, got %d", len(calls))
  }
  if calls[0].Function.Name != "get_weather" {
    t.Fatalf("expected function name 'get_weather', got %q", calls[0].Function.Name)
  }
  if !strings.Contains(calls[0].Function.Arguments, "Tokyo") {
    t.Fatalf("expected argument with Tokyo, got %q", calls[0].Function.Arguments)
  }
  if strings.TrimSpace(rem) != "Let me check the weather." {
    t.Fatalf("unexpected remaining text: %q", rem)
  }
}

func TestPrepareConversation(t *testing.T) {
  req := ChatCompletionRequest{
    Model: "qwen-3.8-max",
    Messages: []ChatMessage{
      {Role: "system", Content: "You are a helpful assistant."},
      {Role: "user", Content: "Tell me a joke."},
      {Role: "assistant", Content: "Why did the chicken cross the road?"},
      {Role: "user", Content: "Why?"},
    },
    ReasoningEffort: "medium",
  }

  history, question, thinkingMode := PrepareConversation(req)
  if thinkingMode != "true" {
    t.Fatalf("expected thinkingMode 'true', got %q", thinkingMode)
  }
  if len(history) != 2 {
    t.Fatalf("expected 2 history items, got %d", len(history))
  }
  if question != "Why?" {
    t.Fatalf("expected question 'Why?', got %q", question)
  }
  if !strings.Contains(history[0]["content"].(string), "You are a helpful assistant.") {
    t.Fatalf("expected system prompt inside first turn, got %v", history[0]["content"])
  }
}

func TestModelsHandler(t *testing.T) {
  gw := NewQ38Gateway("https://mock.hf.space", "/dummy/path.jpg", "qwen-3.8-max", 5*time.Second)

  req := httptest.NewRequest("GET", "/v1/models", nil)
  w := httptest.NewRecorder()

  gw.HandleModels(w, req)

  if w.Code != http.StatusOK {
    t.Fatalf("expected 200 OK, got %d", w.Code)
  }

  var res ModelsResponse
  if err := json.NewDecoder(w.Body).Decode(&res); err != nil {
    t.Fatalf("failed to decode response: %v", err)
  }

  if len(res.Data) == 0 {
    t.Fatalf("expected at least 1 model in response")
  }

  found := false
  for _, m := range res.Data {
    if m.ID == "qwen-3.8-max" {
      found = true
      break
    }
  }
  if !found {
    t.Fatalf("qwen-3.8-max not found in models list")
  }
}