package client

import (
	"bufio"
	"encoding/json"
	"fmt"
	"git.db.org.ai/dborg/internal/models"
	"io"
	"net/http"
	"net/url"
	"strings"
)

func (c *Client) SearchTwitterHistory(username string) (*models.XResponse, error) {
	path := fmt.Sprintf("/x/history/%s", url.PathEscape(username))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.XResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse Twitter/X response: %w", err)
	}

	return &response, nil
}

func (c *Client) GetFirstFollowers(username string) (*models.FirstFollowersResponse, error) {
	path := fmt.Sprintf("/x/first/%s", url.PathEscape(username))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.FirstFollowersResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse first followers response: %w", err)
	}

	return &response, nil
}

func (c *Client) GetNotableFollowers(username string) (*models.NotableFollowersResponse, error) {
	path := fmt.Sprintf("/x/nfl/%s", url.PathEscape(username))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.NotableFollowersResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse notable followers response: %w", err)
	}

	return &response, nil
}

func (c *Client) FetchTweetsStream(username string, callback func(result json.RawMessage) error) error {
	path := fmt.Sprintf("/x/tweets/%s", url.PathEscape(username))
	fullURL := c.config.BaseURL + path

	req, err := http.NewRequest(http.MethodGet, fullURL, nil)
	if err != nil {
		return fmt.Errorf("failed to create request: %w", err)
	}

	req.Header.Set("User-Agent", c.config.UserAgent)
	req.Header.Set("Accept", "application/x-ndjson, application/json")

	resp, err := c.httpClient.Do(req)
	if err != nil {
		return fmt.Errorf("failed to execute request: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		body, _ := io.ReadAll(resp.Body)
		return fmt.Errorf("API request failed with status %d: %s", resp.StatusCode, string(body))
	}

	scanner := bufio.NewScanner(resp.Body)
	for scanner.Scan() {
		line := scanner.Bytes()
		if len(line) == 0 {
			continue
		}

		if err := callback(json.RawMessage(line)); err != nil {
			return err
		}
	}

	if err := scanner.Err(); err != nil {
		if !strings.Contains(err.Error(), "context deadline exceeded") && !strings.Contains(err.Error(), "timeout") {
			return fmt.Errorf("stream reading error: %w", err)
		}
	}

	return nil
}

func (c *Client) FetchRepliesStream(tweetID string, limit int, callback func(result json.RawMessage) error) error {
	path := fmt.Sprintf("/x/replies/%s", url.PathEscape(tweetID))

	params := url.Values{}
	if limit > 0 {
		params.Set("limit", fmt.Sprintf("%d", limit))
	}

	fullURL := c.config.BaseURL + path
	if len(params) > 0 {
		fullURL += "?" + params.Encode()
	}

	req, err := http.NewRequest(http.MethodGet, fullURL, nil)
	if err != nil {
		return fmt.Errorf("failed to create request: %w", err)
	}

	req.Header.Set("User-Agent", c.config.UserAgent)
	req.Header.Set("Accept", "application/x-ndjson, application/json")
	req.Header.Set("X-API-Key", c.config.APIKey)

	resp, err := c.httpClient.Do(req)
	if err != nil {
		return fmt.Errorf("failed to execute request: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		body, _ := io.ReadAll(resp.Body)
		return fmt.Errorf("API request failed with status %d: %s", resp.StatusCode, string(body))
	}

	scanner := bufio.NewScanner(resp.Body)
	for scanner.Scan() {
		line := scanner.Bytes()
		if len(line) == 0 {
			continue
		}

		if err := callback(json.RawMessage(line)); err != nil {
			return err
		}
	}

	if err := scanner.Err(); err != nil {
		if !strings.Contains(err.Error(), "context deadline exceeded") && !strings.Contains(err.Error(), "timeout") {
			return fmt.Errorf("stream reading error: %w", err)
		}
	}

	return nil
}

func (c *Client) SearchTweetsStream(query string, limit int, callback func(result json.RawMessage) error) error {
	path := fmt.Sprintf("/x/search/%s", url.PathEscape(query))

	params := url.Values{}
	if limit > 0 {
		params.Set("limit", fmt.Sprintf("%d", limit))
	}

	fullURL := c.config.BaseURL + path
	if len(params) > 0 {
		fullURL += "?" + params.Encode()
	}

	req, err := http.NewRequest(http.MethodGet, fullURL, nil)
	if err != nil {
		return fmt.Errorf("failed to create request: %w", err)
	}

	req.Header.Set("User-Agent", c.config.UserAgent)
	req.Header.Set("Accept", "application/x-ndjson, application/json")
	req.Header.Set("X-API-Key", c.config.APIKey)

	resp, err := c.httpClient.Do(req)
	if err != nil {
		return fmt.Errorf("failed to execute request: %w", err)
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		body, _ := io.ReadAll(resp.Body)
		return fmt.Errorf("API request failed with status %d: %s", resp.StatusCode, string(body))
	}

	scanner := bufio.NewScanner(resp.Body)
	for scanner.Scan() {
		line := scanner.Bytes()
		if len(line) == 0 {
			continue
		}

		if err := callback(json.RawMessage(line)); err != nil {
			return err
		}
	}

	if err := scanner.Err(); err != nil {
		if !strings.Contains(err.Error(), "context deadline exceeded") && !strings.Contains(err.Error(), "timeout") {
			return fmt.Errorf("stream reading error: %w", err)
		}
	}

	return nil
}

func (c *Client) CheckDeletedTweets(handle string) (*models.XResponse, error) {
	path := fmt.Sprintf("/x/deleted-tweets/%s", url.PathEscape(handle))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.XResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse deleted tweets response: %w", err)
	}

	return &response, nil
}

func (c *Client) CheckDomainAge(domain string) (*models.XResponse, error) {
	path := fmt.Sprintf("/x/domain/%s", url.PathEscape(domain))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.XResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse domain age response: %w", err)
	}

	return &response, nil
}

func (c *Client) GetHoldersMap(address string) (*models.XResponse, error) {
	path := fmt.Sprintf("/x/holders/map/%s", url.PathEscape(address))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.XResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse holders map response: %w", err)
	}

	return &response, nil
}

func (c *Client) GetTwitterID(handle string) (*models.XResponse, error) {
	path := fmt.Sprintf("/x/id/%s", url.PathEscape(handle))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.XResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse Twitter ID response: %w", err)
	}

	return &response, nil
}

func (c *Client) ReverseImageSearch(address string) (*models.XResponse, error) {
	path := fmt.Sprintf("/x/image/%s", url.PathEscape(address))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.XResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse image search response: %w", err)
	}

	return &response, nil
}

func (c *Client) GetTwitterUserID(handle string) (*models.XResponse, error) {
	path := fmt.Sprintf("/x/user-id/%s", url.PathEscape(handle))
	data, err := c.Get(path, nil)
	if err != nil {
		return nil, err
	}

	var response models.XResponse
	if err := json.Unmarshal(data, &response); err != nil {
		return nil, fmt.Errorf("failed to parse Twitter user ID response: %w", err)
	}

	return &response, nil
}