import os
import json
import requests
import glob
import exifread

from PIL import Image
from PIL.ExifTags import TAGS
from PIL.PngImagePlugin import PngImageFile, PngInfo

def confirm():
    confirmMsg = input("[y]es or [n]o ")
    if confirmMsg == 'y' or confirmMsg == 'yes':
        return True 
    elif confirmMsg == 'n' or confirmMsg == 'no':
        return False
    else:
        print("\n Invalid Option. Please Enter a Valid Option.")
        return confirm()
    return False

def load_config(file_path):
    with open(file_path, "r") as config_file:
        config_data = json.load(config_file)
        return config_data

def getTags(file_path):
    try:
        file = open(file_path,'r')
        fileContent = file.read()
        file.close
    except:
        fileContent = ''
    return fileContent

def getImages(dir):
    result = glob.glob(dir + '/*.jpg')
    return result

def getItemDescription(filename):
    img = Image.open(filename)
    exif_data = img._getexif()
    imageDescription = ""

    if exif_data:
        for tag, value in exif_data.items():
            tag_name = TAGS.get(tag, tag)
            if str(tag_name) == "ImageDescription":
                imageDescription = str(value)
                break
            else:
                imageDescription = "This image has no description. Please let me know so that I can update it."
    else:
        raise ValueError("No EXIF data found.")
    
    return imageDescription

def getPostText(filename):
    postText = ""
    tags = getTags("tags.txt")
    date = ""
    cam = ""
    title = ""

    img = Image.open(filename)
    exif_data = img._getexif()

    if exif_data:
        for tag, value in exif_data.items():
            tag_name = TAGS.get(tag, tag)
            if tag_name == "DateTimeOriginal":
                dateTime = value
                year = dateTime[:4]
                month = dateTime[5:7]
                date = "🗓  " + year + "-" + month
            if tag_name == "Make": 
                cam += "📸 " + value
            if cam != "" and tag_name == "Model":
                cam += " " + value
            if tag_name == "Object Name":
                print(value)
                title = value
    else:
        raise ValueError("No EXIF data found.")
    
    if date != "":
        postText = date
    if cam != "":
        if postText != "":
            postText += " || "
        postText += cam
    if title != "":
        postText += "\n\r\n\r" + title
    elif title == "":
            print(f"No post Text found. Do you want to add a post text for file " + os.path.basename(filename) + "?")
            if confirm():
                ownPostText = input("Post text:")
                ownPostText.encode('utf-8')
                postText += "\n\r\n\r" + ownPostText
    postText += "\n\r\n\r" + tags

    return postText

def mediaUpload(access_token, url, file, itemDescription):
    api_url = url + "/api/v1/media"
    
    headers = {
        "Authorization": f"Bearer {access_token}"
    }

    try:
        with open(file, "rb") as imageFile:
            f = {
                "file": (file, imageFile)
            }

            data = {
                "description": itemDescription.encode('utf-8')
            }
            
            response = requests.post(api_url, headers=headers, files=f, data=data)
            response.raise_for_status()

            try:
                data = response.json()
                return(data)
            except json.decoder.JSONDecodeError:
                print("API response contains non-valid JSON data:")
                print(response.text)
    except requests.exceptions.RequestException as e:
        print(f"An error occurred during the API call: {e}")

def createNewPost(access_token, url, ImageID, ImageDescription):
    api_url = url + "/api/v1/statuses"
    ImageIDs = ImageID.split(",")
    ImageIDsInt = list(map(int, ImageIDs))
    headers = {
        "Authorization": f"Bearer {access_token}"
    }

    data = {
        "status": ImageDescription,
        "media_ids": ImageIDsInt
    }

    try:
        response = requests.post(api_url, headers=headers, json=data)
        try:
            responsedata = response.json()
            return(responsedata)
        except json.decoder.JSONDecodeError:
            print("API response contains non-valid JSON data:")
            print(response.text)
    except requests.exceptions.RequestException as e:
        print(f"An error occurred during the API call: {e}")

def sendImages(Token, url, imagedir, uploadType, deleteFile):
    files = getImages(imagedir)
    if not files:
        raise ValueError("No file found.")
    postText = ""
    newFileID = ""
    itemDescription = ""
    postText = ""

    for f in files:
        itemDescription = getItemDescription(f)
        newFile = mediaUpload(Token, url, f, itemDescription)
        if uploadType == 0:
            postText = getPostText(f)
            newFileID = newFile.get("id")
            print(f"----------------------------------------")
            print(f"Post Summary: ")
            print(f"ImageID: " + newFileID)
            print(f"Image Description: " + newFile.get("description"))
            print(f"Post Text: " + postText)
            print(f"----------------------------------------")
            print(f"Do you want to Publish this?")
            if confirm():
                createNewPost(Token, url, newFileID, postText)
            else:
                deleteFile = False
                print(f"File upload aborted.")
        else:
            if postText == "":
                postText = getPostText(f)
            if newFileID != "":
                newFileID = newFileID + "," + newFile.get("id")
            else:
                newFileID = newFile.get("id")
    if uploadType == 1:
        createNewPost(Token, url, newFileID, postText)

    if deleteFile:
        for f in files:
            if os.path.exists(f):
                os.remove(f)

    return True

if __name__ == "__main__":
    config_file_path = "config.json"
    config = load_config(config_file_path)

    url = config.get("server_url")
    accessToken = config.get("access_token")
    imagedir = config.get("image_path")
    uploadType = config.get("upload_type")
    deleteFile = config.get("delete_file")
    
    try:
        sendImages(accessToken, url, imagedir, uploadType, deleteFile)
    except ValueError as e:
        print(f"Error while uploading the image: {e}")