import pandas as pd
import gspread
import gradio as gr
from datetime import datetime, timedelta
from oauth2client.service_account import ServiceAccountCredentials

# ------------------ AUTH ------------------
VALID_USERS = {
    "andrew@lortechnologies.com": "Pass.123",
    "donovanm@bid4cars.co.za": "Pass.123",
    "grant@bid4cars.co.za": "Pass.123",
    "phonnie@c2group.co.za": "Pass.123"
}

# ------------------ GOOGLE SHEET SETUP ------------------
scope = ["https://spreadsheets.google.com/feeds", "https://www.googleapis.com/auth/drive"]
creds = ServiceAccountCredentials.from_json_keyfile_name("deep-mile-461309-t8-0e90103411e0.json", scope)
client = gspread.authorize(creds)
sheet_url = "https://docs.google.com/spreadsheets/d/1if4KoVQvw5ZbhknfdZbzMkcTiPfsD6bz9V3a1th-bwQ"

def load_sheet(sheet_name):
    sheet = client.open_by_url(sheet_url).worksheet(sheet_name)
    df = pd.DataFrame(sheet.get_all_records())
    return df

# ------------------ WEEK HELPERS ------------------
def get_current_week_range():
    today = datetime.today()
    start = today - timedelta(days=today.weekday())
    end = start + timedelta(days=6)
    return start.date(), end.date()

# ------------------ CALLS & APPOINTMENTS REPORT ------------------
def filter_by_date_range(sheet_name, start_date, end_date):
    df = load_sheet(sheet_name)
    df['Date'] = pd.to_datetime(df['Date'], errors='coerce').dt.date
    return df[(df['Date'] >= start_date) & (df['Date'] <= end_date)]

# ------------------ APPOINTED LEADS ------------------
def appointed_leads_table():
    df = load_sheet("AllocatedLeads")
    grouped = df.groupby('Rep')['Customer Name'].apply(list).reset_index()
    return grouped

# ------------------ LIVE SHEET SEARCH ------------------
def search_table(sheet_name, field, keyword):
    df = load_sheet(sheet_name)
    if field not in df.columns:
        return pd.DataFrame(), "Field not found."
    results = df[df[field].astype(str).str.contains(keyword, case=False, na=False)]
    return results, f"Found {len(results)} results."

# ------------------ USER TARGET COMPARISON ------------------
def generate_user_metrics():
    users_df = load_sheet("Users")
    calls_df = load_sheet("Calls")
    appt_df = load_sheet("Appointments")

    calls_df['Date'] = pd.to_datetime(calls_df['Date'], errors='coerce').dt.date
    appt_df['Date'] = pd.to_datetime(appt_df['Date'], errors='coerce').dt.date

    start, end = get_current_week_range()
    week_calls = calls_df[(calls_df['Date'] >= start) & (calls_df['Date'] <= end)]
    week_appt = appt_df[(appt_df['Date'] >= start) & (appt_df['Date'] <= end)]

    call_count = week_calls.groupby("Rep Name").size().reset_index(name="Calls This Week")
    appt_count = week_appt.groupby("Rep Name").size().reset_index(name="Appointments This Week")

    merged = users_df.merge(call_count, how='left', left_on='Name', right_on='Rep Name')
    merged = merged.merge(appt_count, how='left', left_on='Name', right_on='Rep Name')
    merged = merged.fillna(0)

    return merged[['Name', 'Weekly Target', 'Calls This Week', 'Appointments This Week']]

# ------------------ GRADIO UI ------------------
with gr.Blocks() as app:
    with gr.Row():
        with gr.Column(visible=True) as login_ui:
            gr.Markdown("## Login Required")
            email = gr.Textbox(label="Email")
            password = gr.Textbox(label="Password", type="password")
            login_btn = gr.Button("Login")
            login_msg = gr.Markdown()

        with gr.Column(visible=False) as main_ui:
            gr.Markdown("## Graffiti Admin Dashboard")

            with gr.Tab("Calls Report"):
                week_start, week_end = get_current_week_range()
                calls_table = gr.Dataframe()
                week_btn = gr.Button("View This Week's Calls")
                week_btn.click(lambda: filter_by_date_range("Calls", week_start, week_end), outputs=calls_table)

            with gr.Tab("Appointments Report"):
                appt_table = gr.Dataframe()
                appt_btn = gr.Button("View This Week's Appointments")
                appt_btn.click(lambda: filter_by_date_range("Appointments", week_start, week_end), outputs=appt_table)

            with gr.Tab("Appointed Leads"):
                leads_output = gr.Dataframe()
                leads_btn = gr.Button("View Appointed Leads")
                leads_btn.click(fn=appointed_leads_table, outputs=leads_output)

            with gr.Tab("Query Live Sheets"):
                sheet_choice = gr.Dropdown(choices=["LiveQuotes", "LiveCustomer", "LiveJobBags"], label="Select Sheet")
                field_input = gr.Textbox(label="Field (column name)")
                keyword_input = gr.Textbox(label="Keyword to search")
                query_btn = gr.Button("Search")
                query_table = gr.Dataframe()
                query_info = gr.Markdown()
                query_btn.click(fn=search_table, inputs=[sheet_choice, field_input, keyword_input], outputs=[query_table, query_info])

            with gr.Tab("Rep vs Targets"):
                metric_table = gr.Dataframe()
                metric_btn = gr.Button("View Weekly Targets")
                metric_btn.click(fn=generate_user_metrics, outputs=metric_table)

    def do_login(user, pw):
        if VALID_USERS.get(user) == pw:
            return gr.update(visible=False), gr.update(visible=True), ""
        else:
            return gr.update(visible=True), gr.update(visible=False), "❌ Invalid email or password."

    login_btn.click(fn=do_login, inputs=[email, password], outputs=[login_ui, main_ui, login_msg])

app.launch(share=True)