package main

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

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestUnifiedSearch(t *testing.T) {
	setup := setupDeviceTest(t)
	defer setup.Server.Close()

	libraryID := setup.CreateLibrary(t, "Test Search Library", "ebooks")
	_ = setup.CreateDevice(t, "Test Search Device", "koreader", "search-test-123")

	t.Run("Fuzzy author filter", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?library_id="+libraryID+"&author_filter=asimov", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusOK, rec.Code, "Should fuzzy match author")
	})

	t.Run("Fuzzy genre filter", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?library_id="+libraryID+"&genre_filter=scifi", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusOK, rec.Code, "Should fuzzy match genre")
	})

	t.Run("Exact match with quotes", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?library_id="+libraryID+"&q=%22Foundation%20and%20Empire%22", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusOK, rec.Code, "Should exact match quoted query")
	})

	t.Run("Combined search + filters", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?library_id="+libraryID+"&q=foundation&author_filter=asimov", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusOK, rec.Code, "Should combine search and filters")
	})

	t.Run("Field-specific search for dropdown - authors", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?library_id="+libraryID+"&authors=asimov", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusOK, rec.Code, "Should return author values")

		var response struct {
			Results []struct {
				Value string  `json:"value"`
				Count int64   `json:"count"`
				Score float64 `json:"score"`
			} `json:"results"`
			Total int `json:"total"`
		}
		err := json.Unmarshal(rec.Body.Bytes(), &response)
		require.NoError(t, err, "Should unmarshal field values response")
		assert.Greater(t, len(response.Results), 0, "Should have results")
	})

	t.Run("Year range filter (exact)", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?library_id="+libraryID+"&year_min=2000&year_max=2020", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusOK, rec.Code, "Should filter by year range")
	})

	t.Run("Boolean filter (exact)", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?library_id="+libraryID+"&has_cover=true", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusOK, rec.Code, "Should filter by has_cover")
	})

	t.Run("Missing library_id", func(t *testing.T) {
		req := httptest.NewRequest("GET", "/api/media-items/search?q=test", nil)
		req.Header.Set("Authorization", "Bearer "+setup.UserToken)
		rec := httptest.NewRecorder()
		setup.Server.Config.Handler.ServeHTTP(rec, req)

		assert.Equal(t, http.StatusBadRequest, rec.Code, "Should require library_id")
	})
}