<?php

namespace App\Controllers\Admin;

use App\Controllers\BaseController;
use App\Models\BagPriceHistoryModel;
use App\Models\BagPriceModel;
use App\Models\CodeDetailModel;
use App\Models\CodeKindModel;

class BagPrice extends BaseController
{
    private BagPriceModel $priceModel;
    private BagPriceHistoryModel $historyModel;

    public function __construct()
    {
        $this->priceModel   = model(BagPriceModel::class);
        $this->historyModel = model(BagPriceHistoryModel::class);
    }

    public function index()
    {
        helper('admin');
        $lgIdx = admin_effective_lg_idx();
        if ($lgIdx === null) {
            return redirect()->to(work_area_home_url())->with('error', '지자체를 선택해 주세요.');
        }

        $list = $this->priceModel->where('bp_lg_idx', $lgIdx)
            ->orderBy('bp_bag_code', 'ASC')
            ->orderBy('bp_start_date', 'DESC')
            ->paginate(20);

        return $this->renderWorkPage('봉투 단가 관리', 'admin/bag_price/index', [
            'list'  => $list,
            'pager' => $this->priceModel->pager,
        ]);
    }

    public function create()
    {
        helper('admin');
        $lgIdx = admin_effective_lg_idx();
        if (! $lgIdx) {
            return redirect()->to(mgmt_url('bag-prices'))->with('error', '지자체를 선택해 주세요.');
        }

        $kindModel = model(CodeKindModel::class);
        $kind      = $kindModel->where('ck_code', 'O')->first();
        $bagCodes  = [];
        if ($kind) {
            $bagCodes = model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx);
        }

        return $this->renderWorkPage('봉투 단가 등록', 'admin/bag_price/create', ['bagCodes' => $bagCodes]);
    }

    public function store()
    {
        helper('admin');
        $lgIdx = admin_effective_lg_idx();

        $rules = [
            'bp_bag_code'    => 'required|max_length[50]',
            'bp_order_price' => 'required|decimal',
            'bp_wholesale'   => 'required|decimal',
            'bp_consumer'    => 'required|decimal',
            'bp_start_date'  => 'required|valid_date[Y-m-d]',
            'bp_end_date'    => 'permit_empty|valid_date[Y-m-d]',
        ];

        if (! $this->validate($rules)) {
            return redirect()->back()->withInput()->with('errors', $this->validator->getErrors());
        }

        $bagCode   = $this->request->getPost('bp_bag_code');
        $kindModel = model(CodeKindModel::class);
        $kind      = $kindModel->where('ck_code', 'O')->first();
        $bagName   = '';
        if ($kind) {
            $detail = model(CodeDetailModel::class)->findResolvedByKindAndCode((int) $kind->ck_idx, (string) $bagCode, $lgIdx);
            $bagName = $detail ? $detail->cd_name : '';
        }

        $this->priceModel->insert([
            'bp_lg_idx'      => $lgIdx,
            'bp_bag_code'    => $bagCode,
            'bp_bag_name'    => $bagName,
            'bp_order_price' => $this->request->getPost('bp_order_price'),
            'bp_wholesale'   => $this->request->getPost('bp_wholesale'),
            'bp_consumer'    => $this->request->getPost('bp_consumer'),
            'bp_start_date'  => $this->request->getPost('bp_start_date'),
            'bp_end_date'    => $this->request->getPost('bp_end_date') ?: null,
            'bp_state'       => 1,
            'bp_regdate'     => date('Y-m-d H:i:s'),
            'bp_reg_mb_idx'  => session()->get('mb_idx'),
        ]);

        return redirect()->to(mgmt_url('bag-prices'))->with('success', '봉투 단가가 등록되었습니다.');
    }

    public function edit(int $id)
    {
        helper('admin');
        $lgIdx = admin_effective_lg_idx();
        $item  = $this->priceModel->find($id);
        if (! $item || (int) $item->bp_lg_idx !== $lgIdx) {
            return redirect()->to(mgmt_url('bag-prices'))->with('error', '단가 정보를 찾을 수 없습니다.');
        }

        $kindModel = model(CodeKindModel::class);
        $kind      = $kindModel->where('ck_code', 'O')->first();
        $bagCodes  = [];
        if ($kind) {
            $bagCodes = model(CodeDetailModel::class)->getByKind((int) $kind->ck_idx, true, $lgIdx);
        }

        return $this->renderWorkPage('봉투 단가 수정', 'admin/bag_price/edit', ['item' => $item, 'bagCodes' => $bagCodes]);
    }

    public function update(int $id)
    {
        helper('admin');
        $item = $this->priceModel->find($id);
        if (! $item || (int) $item->bp_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('bag-prices'))->with('error', '단가 정보를 찾을 수 없습니다.');
        }

        $rules = [
            'bp_order_price' => 'required|decimal',
            'bp_wholesale'   => 'required|decimal',
            'bp_consumer'    => 'required|decimal',
            'bp_start_date'  => 'required|valid_date[Y-m-d]',
            'bp_end_date'    => 'permit_empty|valid_date[Y-m-d]',
            'bp_state'       => 'required|in_list[0,1]',
        ];

        if (! $this->validate($rules)) {
            return redirect()->back()->withInput()->with('errors', $this->validator->getErrors());
        }

        $db = \Config\Database::connect();
        $db->transStart();

        $priceFields = ['bp_order_price', 'bp_wholesale', 'bp_consumer'];
        foreach ($priceFields as $field) {
            $oldVal = (string) $item->$field;
            $newVal = (string) $this->request->getPost($field);
            if ($oldVal !== $newVal) {
                $this->historyModel->insert([
                    'bph_bp_idx'     => $id,
                    'bph_field'      => $field,
                    'bph_old_value'  => $oldVal,
                    'bph_new_value'  => $newVal,
                    'bph_changed_at' => date('Y-m-d H:i:s'),
                    'bph_changed_by' => session()->get('mb_idx'),
                ]);
            }
        }

        $this->priceModel->update($id, [
            'bp_order_price' => $this->request->getPost('bp_order_price'),
            'bp_wholesale'   => $this->request->getPost('bp_wholesale'),
            'bp_consumer'    => $this->request->getPost('bp_consumer'),
            'bp_start_date'  => $this->request->getPost('bp_start_date'),
            'bp_end_date'    => $this->request->getPost('bp_end_date') ?: null,
            'bp_state'       => (int) $this->request->getPost('bp_state'),
            'bp_moddate'     => date('Y-m-d H:i:s'),
        ]);

        $db->transComplete();

        return redirect()->to(mgmt_url('bag-prices'))->with('success', '봉투 단가가 수정되었습니다.');
    }

    public function delete(int $id)
    {
        helper('admin');
        $item = $this->priceModel->find($id);
        if (! $item || (int) $item->bp_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('bag-prices'))->with('error', '단가 정보를 찾을 수 없습니다.');
        }

        $this->priceModel->delete($id);

        return redirect()->to(mgmt_url('bag-prices'))->with('success', '봉투 단가가 삭제되었습니다.');
    }

    public function history(int $bpIdx)
    {
        helper('admin');
        $item = $this->priceModel->find($bpIdx);
        if (! $item || (int) $item->bp_lg_idx !== admin_effective_lg_idx()) {
            return redirect()->to(mgmt_url('bag-prices'))->with('error', '단가 정보를 찾을 수 없습니다.');
        }

        $list = $this->historyModel->where('bph_bp_idx', $bpIdx)->orderBy('bph_changed_at', 'DESC')->findAll();

        return $this->renderWorkPage('단가 변경 이력 — ' . $item->bp_bag_name, 'admin/bag_price/history', ['item' => $item, 'list' => $list]);
    }
}