package api

import (
	"bytes"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/ez-api/ez-api/internal/model"
	"github.com/gin-gonic/gin"
)

func TestCreateProviderPreset_OpenAI_SetsBaseURL(t *testing.T) {
	h, _ := newTestHandler(t)

	r := gin.New()
	r.POST("/admin/providers/preset", h.CreateProviderPreset)

	reqBody := map[string]any{
		"preset":  "openai",
		"api_key": "k",
		"models":  []string{"gpt-4o-mini"},
	}
	b, _ := json.Marshal(reqBody)

	req := httptest.NewRequest(http.MethodPost, "/admin/providers/preset", bytes.NewReader(b))
	req.Header.Set("Content-Type", "application/json")
	rr := httptest.NewRecorder()
	r.ServeHTTP(rr, req)

	if rr.Code != http.StatusCreated {
		t.Fatalf("expected 201, got %d body=%s", rr.Code, rr.Body.String())
	}
	var got model.Provider
	if err := json.Unmarshal(rr.Body.Bytes(), &got); err != nil {
		t.Fatalf("unmarshal: %v", err)
	}
	if got.Type != "openai" {
		t.Fatalf("expected type openai, got %q", got.Type)
	}
	if got.BaseURL != "https://api.openai.com/v1" {
		t.Fatalf("expected base_url=https://api.openai.com/v1, got %q", got.BaseURL)
	}
	if got.Name == "" {
		t.Fatalf("expected generated name")
	}
}

func TestCreateProviderCustom_RequiresBaseURL(t *testing.T) {
	h, _ := newTestHandler(t)

	r := gin.New()
	r.POST("/admin/providers/custom", h.CreateProviderCustom)

	reqBody := map[string]any{
		"name":    "c1",
		"api_key": "k",
	}
	b, _ := json.Marshal(reqBody)

	req := httptest.NewRequest(http.MethodPost, "/admin/providers/custom", bytes.NewReader(b))
	req.Header.Set("Content-Type", "application/json")
	rr := httptest.NewRecorder()
	r.ServeHTTP(rr, req)

	if rr.Code != http.StatusBadRequest {
		t.Fatalf("expected 400, got %d body=%s", rr.Code, rr.Body.String())
	}
}

func TestCreateProviderGoogle_GeminiRequiresAPIKey(t *testing.T) {
	h, _ := newTestHandler(t)

	r := gin.New()
	r.POST("/admin/providers/google", h.CreateProviderGoogle)

	reqBody := map[string]any{
		"type":   "gemini",
		"models": []string{"gemini-2.0-flash"},
	}
	b, _ := json.Marshal(reqBody)

	req := httptest.NewRequest(http.MethodPost, "/admin/providers/google", bytes.NewReader(b))
	req.Header.Set("Content-Type", "application/json")
	rr := httptest.NewRecorder()
	r.ServeHTTP(rr, req)

	if rr.Code != http.StatusBadRequest {
		t.Fatalf("expected 400, got %d body=%s", rr.Code, rr.Body.String())
	}
}