package main

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

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

// TestMediaBulkOperations tests bulk media operations
func TestMediaBulkOperations(t *testing.T) {
	t.Run("BulkDeleteBooks_WithoutAuth", func(t *testing.T) {
		ts, _, _ := setupTestServer(t)
		defer ts.Close()

		req := map[string]interface{}{
			"book_ids": []string{uuid.New().String()},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-delete", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusUnauthorized, resp.StatusCode)
	})

	t.Run("BulkDeleteBooks_EmptyBookIDs", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		req := map[string]interface{}{
			"book_ids": []string{},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-delete", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusBadRequest, resp.StatusCode)
	})

	t.Run("BulkDeleteBooks_InvalidBookIDs", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		req := map[string]interface{}{
			"book_ids": []string{"invalid-uuid", "another-invalid"},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-delete", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusOK, resp.StatusCode)

		var result map[string]interface{}
		json.NewDecoder(resp.Body).Decode(&result)

		assert.Contains(t, result, "results")
		assert.Contains(t, result, "total")
		assert.Contains(t, result, "deleted")
		assert.Contains(t, result, "failed")
	})

	t.Run("BulkDeleteBooks_WithValidBooks", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		// Create test books
		bookID1 := createTestEbookID(t, ts, token)
		bookID2 := createTestEbookID(t, ts, token)
		bookID3 := uuid.New().String()

		req := map[string]interface{}{
			"book_ids": []string{bookID1, bookID2, bookID3},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-delete", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusOK, resp.StatusCode)

		var result map[string]interface{}
		json.NewDecoder(resp.Body).Decode(&result)

		assert.Contains(t, result, "results")
		assert.Equal(t, 3, result["total"])
		assert.True(t, result["deleted"].(float64) >= 2) // At least the valid ones
	})

	t.Run("BulkDeleteBooks_InvalidRequestBody", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		// Send invalid JSON
		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-delete", bytes.NewBuffer([]byte("invalid json")))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusBadRequest, resp.StatusCode)
	})

	t.Run("BulkUpdateBooks_WithoutAuth", func(t *testing.T) {
		ts, _, _ := setupTestServer(t)
		defer ts.Close()

		req := map[string]interface{}{
			"book_ids": []string{uuid.New().String()},
			"updates": map[string]interface{}{
				"tags": []string{"test"},
			},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-update", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusUnauthorized, resp.StatusCode)
	})

	t.Run("BulkUpdateBooks_EmptyBookIDs", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		req := map[string]interface{}{
			"book_ids": []string{},
			"updates": map[string]interface{}{
				"tags": []string{"test"},
			},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-update", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusBadRequest, resp.StatusCode)
	})

	t.Run("BulkUpdateBooks_InvalidBookIDs", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		req := map[string]interface{}{
			"book_ids": []string{"invalid-uuid"},
			"updates": map[string]interface{}{
				"tags": []string{"fiction", "test"},
			},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-update", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusOK, resp.StatusCode)

		var result map[string]interface{}
		json.NewDecoder(resp.Body).Decode(&result)

		assert.Contains(t, result, "results")
		assert.Contains(t, result, "total")
		assert.Contains(t, result, "updated")
		assert.Contains(t, result, "failed")
	})

	t.Run("BulkUpdateBooks_UpdateTags", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		// Create test books
		bookID1 := createTestEbookID(t, ts, token)
		bookID2 := createTestEbookID(t, ts, token)

		req := map[string]interface{}{
			"book_ids": []string{bookID1, bookID2},
			"updates": map[string]interface{}{
				"tags": []string{"fiction", "science-fiction", "test"},
			},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-update", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusOK, resp.StatusCode)

		var result map[string]interface{}
		json.NewDecoder(resp.Body).Decode(&result)

		assert.Contains(t, result, "results")
		assert.Equal(t, 2, result["total"])
		assert.True(t, result["updated"].(float64) > 0)
	})

	t.Run("BulkUpdateBooks_UpdateReadingStatus", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		// Create test books
		bookID1 := createTestEbookID(t, ts, token)

		req := map[string]interface{}{
			"book_ids": []string{bookID1},
			"updates": map[string]interface{}{
				"reading_status": "reading",
			},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-update", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusOK, resp.StatusCode)

		var result map[string]interface{}
		json.NewDecoder(resp.Body).Decode(&result)

		assert.Contains(t, result, "results")
	})

	t.Run("BulkUpdateBooks_UpdateMultipleFields", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		// Create test books
		bookID1 := createTestEbookID(t, ts, token)

		req := map[string]interface{}{
			"book_ids": []string{bookID1},
			"updates": map[string]interface{}{
				"tags":           []string{"test", "bulk-update"},
				"reading_status": "to-read",
				"rating":         4,
			},
		}
		body, _ := json.Marshal(req)

		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-update", bytes.NewBuffer(body))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusOK, resp.StatusCode)

		var result map[string]interface{}
		json.NewDecoder(resp.Body).Decode(&result)

		assert.Contains(t, result, "results")
	})

	t.Run("BulkUpdateBooks_InvalidRequestBody", func(t *testing.T) {
		ts, db, _ := setupTestServer(t)
		defer ts.Close()

		token := loginTestUser(t, ts, db)

		// Send invalid JSON
		httpReq, _ := http.NewRequest("POST", ts.URL+"/api/books/bulk-update", bytes.NewBuffer([]byte("invalid json")))
		httpReq.Header.Set("Content-Type", "application/json")
		httpReq.Header.Set("Authorization", "Bearer "+token)

		client := &http.Client{}
		resp, err := client.Do(httpReq)
		require.NoError(t, err)
		defer resp.Body.Close()

		assert.Equal(t, http.StatusBadRequest, resp.StatusCode)
	})
}