package endpoints

import (
	"encoding/json"
	"fmt"
	"git.dragse.it/anthrove/e621-to-graph/internal/utils"
	"git.dragse.it/anthrove/e621-to-graph/pkg/e621/model"
	"log"
	"net/http"
)

// GetPost allows you to get a post by ID
func GetPost(client http.Client, requestContext model.RequestContext, ID string) (model.Post, error) {

	// Create a new HTTP GET request to fetch Tag information from the specified 'host' and 'ID'.
	r, err := http.NewRequest("GET", fmt.Sprintf("%s/posts/%s.json", requestContext.Host, ID), nil)
	if err != nil {
		// Log the error and return an empty Tag struct and the error.
		log.Println(err)
		return model.Post{}, err
	}

	r.Header.Set("User-Agent", requestContext.UserAgent)
	r.Header.Add("Accept", "application/json")
	r.SetBasicAuth(requestContext.Username, requestContext.APIKey)

	// Send the request using the provided HTTP client.
	resp, err := client.Do(r)
	if err != nil {
		// Log the error and return an empty Tag struct and the error.
		log.Println(err)
		return model.Post{}, err
	}

	// Check if the HTTP response status code indicates success (2xx range).
	if resp.StatusCode < 200 || resp.StatusCode > 300 {
		// If the status code is outside the 2xx range, return an error based on the status code.
		return model.Post{}, utils.StatusCodesToError(resp.StatusCode)
	}

	// Initialize a Tag struct to store the response data.
	var post model.PostResponse

	// Decode the JSON response into the Tag struct.
	err = json.NewDecoder(resp.Body).Decode(&post)

	if err != nil {
		// Log the error and return an empty Tag struct and the error.
		log.Println(err)
		return model.Post{}, err
	}

	// Return the Tag information and no error (nil).
	return post.Post, nil
}

// GetPosts allows you to get a list of posts
func GetPosts(client http.Client, requestContext model.RequestContext, query map[string]string) ([]model.Post, error) {

	// Create a new HTTP GET request to fetch Tag information from the specified 'host' and 'ID'.
	r, err := http.NewRequest("GET", fmt.Sprintf("%s/posts.json", requestContext.Host), nil)
	if err != nil {
		// Log the error and return an empty Tag struct and the error.
		log.Println(err)
		return nil, err
	}

	r.Header.Set("User-Agent", requestContext.UserAgent)
	r.Header.Add("Accept", "application/json")
	r.SetBasicAuth(requestContext.Username, requestContext.APIKey)

	// Append query parameters to the request URL.
	q := r.URL.Query()
	for k, v := range query {
		q.Add(k, v)
	}
	r.URL.RawQuery = q.Encode()

	// Send the request using the provided HTTP client.
	resp, err := client.Do(r)
	if err != nil {
		// Log the error and return an empty Tag struct and the error.
		log.Println(err)
		return nil, err
	}

	// Check if the HTTP response status code indicates success (2xx range).
	if resp.StatusCode < 200 || resp.StatusCode > 300 {
		// If the status code is outside the 2xx range, return an error based on the status code.
		return nil, utils.StatusCodesToError(resp.StatusCode)
	}

	// Initialize a Tag struct to store the response data.
	var posts model.PostResponse

	// Decode the JSON response into the Tag struct.
	err = json.NewDecoder(resp.Body).Decode(&posts)
	if err != nil {
		// Log the error and return an empty Tag struct and the error.
		log.Println(err)
		return nil, err
	}

	// Return the Tag information and no error (nil).
	return posts.Posts, nil
}