from fastapi import FastAPI, Request
from pydantic import BaseModel
import requests
import logging
from datetime import datetime

# Configure logging
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')

app = FastAPI()

# ClickUp API URL for creating a task
CLICKUP_URL_BASE = "https://api.clickup.com/api/v2"

# WhatsApp API URL
WHATSAPP_URL = "https://7105.api.greenapi.com/waInstance7105265861/sendMessage/f1e39ce29d1f4040a20f0718547a384ae2e0afb3d9884727ad"

# Your access token
ACCESS_TOKEN = "2144425825_36f2249dc27c5aca075ac5442b1bbcdf01c3a29b9e41b86bda46a6cf651acd0f"

# Google Apps Script Data handler
web_app_url = "https://script.google.com/macros/s/AKfycbx9-oUXV896jM0HbQSz4h61Crf_UYHM8LJMbxXux4PHwf38zqjaJjIJe9O4UyT1u6s/exec"

# Headers for ClickUp authorization
headers = {
    "Authorization": ACCESS_TOKEN,
    "Content-Type": "application/json"
}

# Headers for WhatsApp API
whatsapp_headers = {
    "Content-Type": "application/json"
}

class TaskData(BaseModel):
    task_name: str
    task_type: str  # "Reel" or "Design"
    campaign_name: str
    platforms: list[str]
    assignees: list[int]  # List of user IDs
    due_date: int  # Unix timestamp in milliseconds

@app.post("/singletask")
async def create_task(request: Request):
    data = await request.json()
    logging.info(f"Received task data: {data}")

    # Extract and assign to variables
    team = data.get('team', '')
    task_type = data.get('taskType', '')
    task_title = data.get('taskTitle', '')
    assignees = data.get('assignees', '')
    platforms = data.get('platforms', [])
    deadline = data.get('deadline', '')
    goal = data.get('goal', '')
    description = data.get('description', '')
    creative_type = data.get('creativeType', '')
    ad_content = data.get('adContent', '')
    posting_content = data.get('postingContent', '')
    attachment_link = data.get('attachmentLink', '')
    start_date = data.get('startDate', '')
    end_date = data.get('endDate', '')

    # Print extracted values for debugging
    print(f"Team: {team}")
    print(f"Task Type: {task_type}")
    print(f"Task Title: {task_title}")
    print(f"Assignees: {assignees}")
    print(f"Platforms: {platforms}")
    print(f"Deadline: {deadline}")
    print(f"Goal: {goal}")
    print(f"Description: {description}")
    print(f"Creative Type: {creative_type}")
    print(f"Ad Content: {ad_content}")
    print(f"Posting Content: {posting_content}")
    print(f"Attachment Link: {attachment_link}")
    print(f"Start Date: {start_date}")
    print(f"End Date: {end_date}")

    params = {
        "mode": "extended",
        "taskType": task_type,
        "company": team,
        "assignees": ','.join(assignees)
    }

    response = requests.get(web_app_url, params=params)
    try:
        response_data = response.json()
    except ValueError:
        print("ERROR: Failed to decode JSON from web app response")
        return {"error": "Invalid response from Google Apps Script"}

    print(f"Web App Response: {response_data}")

    list_id = response_data.get("listId")
    print(f"List ID: {list_id}")

    assignee_ids = response_data.get("assigneeIds", [])
    print(f"Assignee IDs: {assignee_ids}")

    assignee_numbers = response_data.get("assigneeNumbers", [])
    manager_numbers = response_data.get("managerNumbers", [])

    print(f"Assignee Numbers: {assignee_numbers}")
    print(f"Manager Numbers: {manager_numbers}")
    
    # Create ClickUp task according to task type
    description_text = ""
    task_type_lower = task_type.lower()
    
    # Template and field setup
    template_ids = {
        "content": "t-8698wwx4z",
        "creative": "t-8698wwx4z",
        "ads": "t-8698wwx4z"
    }
    custom_field_id = "64b6898b-eaee-4dd1-b819-a5b142226f69"
    team_id = "9012303718"
    
    # Shared description builder
    if task_type_lower == "content":
        status = "backlog"
        description_text = goal.strip()
        if platforms:
            description_text += "\n\nPlatforms: " + ", ".join(platforms)
    
    elif task_type_lower == "creative":
        status = "to do"
        description_text = creative_type.strip()
        if platforms:
            description_text += "\n\nPlatforms: " + ", ".join(platforms)
    
    elif task_type_lower == "ads":
        status = "ready"
        parts = []
        if ad_content:
            parts.append(ad_content.strip())
        if attachment_link:
            parts.append(f"Attachment: {attachment_link.strip()}")
        if platforms:
            parts.append("Platforms: " + ", ".join(platforms))
        description_text = "\n\n".join(parts)
    
    if task_type_lower in template_ids:
        # Create from template
        template_id = template_ids[task_type_lower]
        template_url = f"{CLICKUP_URL_BASE}/list/{list_id}/taskTemplate/{template_id}"
        template_payload = {
            "name": task_title
        }
    
        response = requests.post(template_url, headers=headers, json=template_payload)
        print("Template Creation Status:", response.status_code)
        print(f"Template Creation response {response.json()}")
    
        if response.ok:
            new_task = response.json()
            new_task_id = new_task.get("id")
            space_id = new_task.get("task", {}).get("space", {}).get("id")

            print("✅ Task created from template:", new_task_id)
            print(f"Space id is {space_id}")

            # ➕ Prepare the update payload to add the assignee and duedate to the created task from template
            update_payload = {
                "assignees": {
                    "add": [int(uid) for uid in assignee_ids],
                    "rem": []  # optionally remove others if needed
                },
                "status": status
            }
            
            # ➕ Add due date if provided
            if deadline:
                try:
                    due_timestamp = int(datetime.strptime(deadline, "%Y-%m-%d").timestamp() * 1000)
                    update_payload["due_date"] = due_timestamp
                    print(f"📅 Due Date (timestamp): {due_timestamp}")
                except ValueError:
                    print("❌ Invalid deadline format. Skipping due_date.")

            print(f"Update payload is {update_payload}\n")
            # 🔁 Update the task with assignees and due date
            update_url = f"{CLICKUP_URL_BASE}/task/{new_task_id}"
            update_response = requests.put(update_url, headers=headers, json=update_payload)
            print("🔧 Update Status:", update_response.status_code)
            print("🧾 Update Response:", update_response.text)
    
            # Update custom field (used as description)
            update_field_url = f"{CLICKUP_URL_BASE}/task/{new_task_id}/field/{custom_field_id}?custom_task_ids=true&team_id={team_id}"
            field_payload = {"value": description_text}
            field_update = requests.post(update_field_url, headers=headers, json=field_payload)
    
            print("📥 Field Update Status:", field_update.status_code)
            print("📥 Field Update Response:", field_update.text)
    
            # ✅ Notify each assignee (same logic used in standard tasks)
            for assignee_id in assignee_ids:
                params = {
                    "mode": "notify-assigned",
                    "assigneeId": assignee_id,
                    "spaceId": space_id
                }
            
                response = requests.get(web_app_url, params=params)
                print(f"Assignee to notify {response.json()}")
                if response.ok:
                    phone = response.json().get("phone")
                    if phone and phone != "not-found":
                        chat_id = f"{phone}@c.us"
                        task_url = f"https://app.clickup.com/t/{new_task_id}"
                        task_name = task_title
                        if deadline:
                            due_str = datetime.utcfromtimestamp(due_timestamp / 1000).strftime('%Y-%m-%d')
                            msg = (
                                f"📌 *تم تعيين مهمة جديدة لك!*\n\n"
                                f"📝 *اسم المهمة:* {task_name}\n"
                                f"📅 *تاريخ التسليم:* {due_str}\n"
                                f"🔗 *رابط المهمة:* {task_url}"
                            )
                        else:
                            msg = (
                                f"📌 *تم تعيين مهمة جديدة لك!*\n\n"
                                f"📝 *اسم المهمة:* {task_name}\n"
                                f"🔗 *رابط المهمة:* {task_url}"
                            )
                        send_whatsapp_notification(chat_id, msg)
                else:
                    logging.warning(f"❌ Couldn't fetch phone number for assignee {assignee_id}")
            
            # ✅ Then return the response

            return {
                "status": "Template-based task created",
                "task_id": new_task_id
            }
        else:
            print("❌ Failed to create task from template")
            return {"error": "Template task creation failed"}
        
    # If not using template, fallback to normal creation
    elif task_type_lower in ["strategy", "posting", "ads report"]:
        if task_type_lower == "strategy":
            status = "to do"
            description_text = description
    
        elif task_type_lower == "posting":
            status = "ready for posting"
            parts = []
            if posting_content:
                parts.append(posting_content.strip())
            if platforms:
                parts.append("Platforms: " + ", ".join(platforms))
            if attachment_link:
                parts.append(f"Attachment: {attachment_link.strip()}")
            description_text = "\n\n".join(parts)
    
        elif task_type_lower == "ads report":
            status = "ready"
            platforms_text = ", ".join(platforms) if platforms else ""
            description_text = f"Prepare an ads report for {platforms_text}"
            if start_date and end_date:
                description_text += f" from {start_date} to {end_date}"
    
        payload = {
            "name": task_title,
            "description": description_text,
            "assignees": [int(uid) for uid in assignee_ids],
            "status": status
        }

    # Handle due date
    if deadline:
        try:
            due_timestamp = int(datetime.strptime(deadline, "%Y-%m-%d").timestamp() * 1000)
            payload["due_date"] = due_timestamp
            print(f"Due Date (timestamp): {due_timestamp}")
        except ValueError:
            print("Invalid deadline format. Skipping due_date.")

    print(f"Task payload is {payload}\n")
    create_url = f"{CLICKUP_URL_BASE}/list/{list_id}/task"
    clickup_response = requests.post(create_url, headers=headers, json=payload)
    clickup_data = clickup_response.json()
    print(f"ClickUp Response: {clickup_response.status_code}, {clickup_data}")

    
    # After task creation and response
    new_task_id = clickup_data.get("id")
    space_id = clickup_data.get("space", {}).get("id")
    assignee_ids = [str(uid) for uid in assignee_ids]  # already known
    
    # Notify each assignee
    for assignee_id in assignee_ids:
        params = {
            "mode": "notify-assigned",
            "assigneeId": assignee_id,
            "spaceId": space_id
        }
    
        response = requests.get(web_app_url, params=params)
        print(f"Assingnee to notify {response.json()}")
        if response.ok:
            phone = response.json().get("phone")
            if phone and phone != "not-found":
                chat_id = f"{phone}@c.us"
                task_url = f"https://app.clickup.com/t/{new_task_id}"
                task_name = payload["name"]
                due_date = payload.get("due_date")
                if due_date:
                    due_str = datetime.utcfromtimestamp(due_date / 1000).strftime('%Y-%m-%d')
                    msg = (
                        f"📌 *تم تعيين مهمة جديدة لك!*\n\n"
                        f"📝 *اسم المهمة:* {task_name}\n"
                        f"📅 *تاريخ التسليم:* {due_str}\n"
                        f"🔗 *رابط المهمة:* {task_url}"
                    )
                else:
                    msg = (
                        f"📌 *تم تعيين مهمة جديدة لك!*\n\n"
                        f"📝 *اسم المهمة:* {task_name}\n"
                        f"🔗 *رابط المهمة:* {task_url}"
                    )
                send_whatsapp_notification(chat_id, msg)
            return {"status": "Standard task created", "clickup": clickup_data}
            
        else:
            logging.warning(f"❌ Couldn't fetch phone number for assignee {assignee_id}")
    
    else:
        return {"error": f"Unsupported task type: {task_type}"}
        
    

# Function to get task name by task ID
def get_task_name(task_id):
    """Fetch task details from ClickUp API using task_id."""
    url = f"https://api.clickup.com/api/v2/task/{task_id}"
    headers = {
        "Authorization": ACCESS_TOKEN
    }
    
    # Make the API request to ClickUp
    response = requests.get(url, headers=headers)

    # Check if the request was successful (status code 200)
    if response.status_code == 200:
        # Parse and return the task details
        
        task_name = response.json()["name"]
        return task_name
    else:
        task_name = "Task name wasn't not found"
        return task_name

def get_task_details(task_id):
    url = f"https://api.clickup.com/api/v2/task/{task_id}"
    headers = {"Authorization": ACCESS_TOKEN}
    
    response = requests.get(url, headers=headers)
    
    if response.status_code == 200:
        task_data = response.json()
    else:
        print(f"Error: {response.status_code}, {response.text}")
        task_data = "invalid data"

    return task_data

def send_whatsapp_notification(chat_id: str, message: str):
    payload = {
        "chatId": chat_id,
        "message": message
    }
    try:
        response = requests.post(WHATSAPP_URL, json=payload, headers=whatsapp_headers)
        response.raise_for_status()
        logging.info(f"WhatsApp sent to {chat_id} - {response.status_code}: {response.text}")
    except requests.RequestException as e:
        logging.error(f"WhatsApp send failed for {chat_id}: {e}")

@app.post("/updates")
async def task_update(request: Request):
    data = await request.json()
    logging.info(f"Received task update from ClickUp: {data}")

    event_type = data.get("event")
    task_id = data.get("task_id", "Unknown ID")
    
    # Get task details
    task_name = get_task_name(task_id)
    task_link = f"https://app.clickup.com/t/{task_id}"

    if event_type == "taskUpdated":
        history_items = data.get("history_items", [])

        for item in history_items:
            if item.get("field") == "status":
                after_status = item.get("after", {}).get("status")
                action_timestamp = item.get("date", 0)

                if not after_status:
                    logging.warning(f"Task {task_id} update ignored: No status change detected.")
                    continue  

                action_date_human = datetime.utcfromtimestamp(int(action_timestamp) / 1000).strftime('%Y-%m-%d %H:%M:%S') if action_timestamp else "Unknown Date"

                logging.info(f"Task: {task_name}, New Status: {after_status}, Action Date: {action_date_human}")

                if after_status.lower() == "ready for review":
                    # Step 1: Get task details
                    task_details = get_task_details(task_id)
                    print(f"Task details: {task_details}")
    
                    task_name = task_details.get("name", "Unnamed Task")
                    task_url = task_details.get("url", "")
                    space_id = task_details.get("space", {}).get("id")
                    assignees = task_details.get("assignees", [])
                    assignee_ids = [str(assignee['id']) for assignee in assignees]
                    assignee_id_to_name = {str(assignee['id']): assignee['username'] for assignee in assignees}
                    assignee_names_str = "، ".join(assignee_id_to_name.values())

                    print(f"Assignees: {assignee_ids}")
                    # Step 2: Call WebApp for notify-roles
                    params = {
                        "mode": "notify-roles",
                        "assigneeId": assignee_ids[0],  # Assume main assignee
                        "spaceId": space_id
                    }
                    response = requests.get(web_app_url, params=params)
    
                    if response.ok:
                        notify_map = response.json()
                        print("✅ Notify Map:", notify_map)
    
                        # 1️⃣ Notify the user (confirmation)
                        user_dict = notify_map.get("users", {})
                        for user_id, number in user_dict.items():
                            chat_id = f"{number}@c.us"
                            user_message = (
                                f"✅ *تم نقل المهمة للمراجعة بنجاح!*\n\n"
                                f"📌 *المهمة:* {task_name}\n"
                                f"📅 *التاريخ:* {action_date_human}\n"
                                f"🔗 *رابط المهمة:* {task_url}\n\n"
                                f"شكراً لك على استكمال المهمة."
                            )
                            send_whatsapp_notification(chat_id, user_message)
    
                        # 2️⃣ Notify the team roles
                        notify_users = notify_map.get("notifyUsers", [])
                        for user in notify_users:
                            name = user.get("name", "عضو الفريق")
                            number = user.get("phone")
                            if number:
                                chat_id = f"{number}@c.us"
                                notify_message = (
                                    f"📣 *تنبيه للفريق:*\n\n"
                                    f"📌 *{assignee_names_str}* قام بنقل المهمة التالية للمراجعة:\n"
                                    f"*{task_name}*\n"
                                    f"🔗 {task_url}\n\n"
                                    f"يرجى مراجعة المهمة وإضافة ملاحظاتك."
                                )
                                send_whatsapp_notification(chat_id, notify_message)
    
                        # 3️⃣ Notify the managers
                        managers = notify_map.get("managers", [])
                        for manager in managers:
                            manager_name = manager.get("name", "مدير")
                            number = manager.get("phone")
                            if number:
                                chat_id = f"{number}@c.us"
                                manager_message = (
                                    f"👤 *إشعار للمدير:*\n\n"
                                    f"📌 *{assignee_names_str}* قام بنقل المهمة للمراجعة:\n"
                                    f"*{task_name}*\n"
                                    f"🔗 {task_url}\n\n"
                                    f"يمكنك إلقاء نظرة وإضافة ملاحظات إن وجدت."
                                )
                                send_whatsapp_notification(chat_id, manager_message)
                    else:
                        logging.error(f"❌ Failed to fetch notify-roles data: {response.status_code}")
                        print("Raw response:", response.text)

    elif event_type == "taskTagUpdated":
        history_items = data.get("history_items", [])
        if history_items:
            for history_item in history_items:
                if "after" in history_item:
                    for tag in history_item["after"]:
                        tag_name = tag.get("name")
                        if tag_name and tag_name.lower() == "missed due date":

                            # Step 1: Prepare data
                            task_details = get_task_details(task_id)
                            print(f"Task details: {task_details}")
                            
                            # ✅ Extract assignee **IDs**
                            assignee_ids = [str(assignee['id']) for assignee in task_details.get('assignees', [])]
                            print("Assignee IDs:", assignee_ids)
                            
                            # ✅ Extract space ID
                            space_id = task_details.get("space", {}).get("id")
                            
                            # Step 2: Prepare the request to Apps Script Web App
                            
                            params = {
                                "mode": "notify",
                                "spaceId": space_id,
                            }
                            
                            # Append assignees[] multiple times for each ID
                            for assignee_id in assignee_ids:
                                params.setdefault("assignees", []).append(assignee_id)

                            # ✅ Get task name
                            task_name = task_details.get("name", "Unnamed Task")
                            
                            # ✅ Create a mapping of assignee ID to name
                            assignee_id_to_name = {
                                str(assignee.get("id")): assignee.get("username")
                                for assignee in task_details.get("assignees", [])
                            }
                            
                            # ✅ Print the values
                            print("📝 Task Name:", task_name)

                            task_url = task_details.get("url", "")
                            print("🔗 Task URL:", task_url)
                            
                            # Get due date
                            due_date_timestamp = task_details.get("due_date")
                            due_date = datetime.utcfromtimestamp(int(due_date_timestamp) / 1000).strftime('%Y-%m-%d') if due_date_timestamp else "Unknown Due Date"
                            
                            # Step 3: Make the request
                            response = requests.get(web_app_url, params=params)
                            
                            # Step 4: Handle the response
                            if response.ok:
                                notify_map = response.json()
                                print("✅ Notify Map:", notify_map)
                            
                                # ✅ Extract user and manager numbers
                                user_dict = notify_map.get("users", {})
                                manager_entries = notify_map.get("managers", [])
                            
                                # ✅ Get unique user numbers
                                user_numbers = list(user_dict.values())
                            
                                # ✅ Get assignee names from user_dict keys (user IDs)
                                user_names = [
                                    assignee_id_to_name.get(user_id, f"User {user_id}")
                                    for user_id in user_dict.keys()
                                ]
                                assignee_name_str = "، ".join(user_names)
                            
                                print("📞 User Numbers:", user_numbers)
                                print("👥 Assignee Name(s) for Manager Message:", assignee_name_str)
                            
                                # ✅ Arabic WhatsApp messages
                                user_message = (
                                    f"⚠️ *تنبيه بتأخر المهمة!*\n\n"
                                    f"📌 *المهمة:* {task_name}\n"
                                    f"📅 *تاريخ التسليم:* {due_date}\n"
                                    f"🔗 *رابط المهمة:* {task_url}\n\n"
                                    f"يرجى اتخاذ الإجراء اللازم فوراً."
                                )
                            
                                for num in user_numbers:
                                    chat_id = f"{num}@c.us"
                                    send_whatsapp_notification(chat_id, user_message)
                            
                                for manager in manager_entries:
                                    manager_name = manager.get("name", "مدير غير معروف")
                                    manager_number = manager.get("number")
                                    if manager_number:
                                        chat_id = f"{manager_number}@c.us"
                                        personalized_message = (
                                            f"📣 *تنبيه مهم:*\n\n"
                                            f"📌 مرحباً {manager_name}\n"
                                            f"📌 *الموظف:* {assignee_name_str}\n"
                                            f"❌ *تأخر في مهمة:* {task_name}\n"
                                            f"📅 *تاريخ التسليم:* {due_date}\n"
                                            f"🔗 *رابط المهمة:* {task_url}\n\n"
                                            f"يرجى المتابعة مع الفريق."
                                        )
                                        send_whatsapp_notification(chat_id, personalized_message)

                            else:
                                print("❌ Failed to fetch notify data:", response.status_code)
                                print("Raw response:", response.text)
                                
                            logging.info(f"Missed Due Date Tag Added for Task: {task_name}, Due Date: {due_date}")

    return {"status": "Update received"}