<?php

namespace App\Services;

use Google_Client;
use Google_Service_Sheets;

class GoogleSheetService
{
    /**
     * Create a new class instance.
     */
    protected $client;
    protected $service;
    protected $spreadsheetID;
    public function __construct()
    {
        $this->client = new Google_Client();
        $this->client->setApplicationName("Sibedas Google Sheets API");
        $this->client->setScopes([Google_Service_Sheets::SPREADSHEETS_READONLY]);
        $this->client->setAuthConfig(storage_path("app/teak-banner-450003-s8-ea05661d9db0.json"));
        $this->client->setAccessType("offline");

        $this->service = new Google_Service_Sheets($this->client);
        $this->spreadsheetID = env("SPREAD_SHEET_ID");

        $this->service_sheets = new Google_Service_Sheets($this->client);
    }

    public function getSheetData($range){
        $response = $this->service->spreadsheets_values->get($this->spreadsheetID, $range);
        return $response->getValues();
    }

    public function getLastRowByColumn($column = "A")
    {
        // Ambil spreadsheet
        $spreadsheet = $this->service->spreadsheets->get($this->spreadsheetID);
        $sheets = $spreadsheet->getSheets();

        if (!empty($sheets)) {
            // Ambil nama sheet pertama dengan benar
            $firstSheetTitle = $sheets[0]->getProperties()->getTitle();

            // ✅ Format range harus benar!
            $range = "{$firstSheetTitle}!{$column}:{$column}";

            // Ambil data dari kolom yang diminta
            $response = $this->service->spreadsheets_values->get($this->spreadsheetID, $range);
            $values = $response->getValues();

            // Cek nilai terakhir yang tidak kosong
            $lastRow = 0;
            if (!empty($values)) {
                foreach ($values as $index => $row) {
                    if (!empty($row[0])) { // Jika ada data, update lastRow
                        $lastRow = $index + 1;
                    }
                }
            }

            return $lastRow;
        }

        return 0;
    }
    public function getHeader()
    {
        $spreadsheet = $this->service->spreadsheets->get($this->spreadsheetID);
        $sheets = $spreadsheet->getSheets();

        // Ambil nama sheet pertama
        $firstSheetTitle = $sheets[0]->getProperties()->getTitle();

        // Ambil data dari baris pertama (header)
        $range = "{$firstSheetTitle}!1:1";
        $response = $this->service->spreadsheets_values->get($this->spreadsheetID, $range);
        $values = $response->getValues();

        // Kembalikan header (baris pertama)
        return !empty($values) ? $values[0] : [];
    }

    public function getLastColumn()
    {
        $spreadsheet = $this->service->spreadsheets->get($this->spreadsheetID);
        $sheets = $spreadsheet->getSheets();

        // Ambil nama sheet pertama
        $firstSheetTitle = $sheets[0]->getProperties()->getTitle();

        // Ambil baris pertama untuk mendapatkan jumlah kolom yang terisi
        $range = "{$firstSheetTitle}!1:1";
        $response = $this->service->spreadsheets_values->get($this->spreadsheetID, $range);
        $values = $response->getValues();

        // Hitung jumlah kolom yang memiliki nilai
        return !empty($values) ? count(array_filter($values[0], fn($value) => $value !== "")) : 0;
    }

    public function getSheetDataCollection($totalRow = 10){
        $spreadsheet = $this->service->spreadsheets->get($this->spreadsheetID);
        $sheets = $spreadsheet->getSheets();
        $firstSheetTitle = $sheets[0]->getProperties()->getTitle();

        $header = $this->getHeader();
        $header = array_map(function($columnHeader) {
            // Trim spaces first, then replace non-alphanumeric characters with underscores
            $columnHeader = trim($columnHeader);
            return strtolower(preg_replace('/[^A-Za-z0-9_]/', '_', $columnHeader));
        }, $header);
        $range = "{$firstSheetTitle}!2:{$totalRow}";

        $response = $this->service->spreadsheets_values->get($this->spreadsheetID, $range);
        $values = $response->getValues();

        $mappedData = [];
        if (!empty($values)) {
            foreach ($values as $row) {
                $rowData = [];
                foreach ($header as $index => $columnHeader) {
                    // Map header to the corresponding value from the row
                    $rowData[$columnHeader] = isset($row[$index]) ? $row[$index] : null;
                }
                $mappedData[] = $rowData;
            }
        }

        return $mappedData;
    }
}