<?php

namespace App\Models\Business;

use App\Abstracts\Model;
use App\Support\EsignErrorMessage;
use Illuminate\Contracts\Encryption\DecryptException;

class CourierAgreementSignature extends Model
{
    public const STATUS_PREPARED = 'prepared';
    public const STATUS_SENDING = 'sending';
    public const STATUS_SIGNING = 'signing';
    public const STATUS_COMPLETED = 'completed';
    public const STATUS_ARCHIVED = 'archived';
    public const STATUS_REVOKED = 'revoked';
    public const STATUS_EXPIRED = 'expired';
    public const STATUS_REJECTED = 'rejected';
    public const STATUS_FAILED = 'failed';
    public const STATUS_UNKNOWN = 'unknown';

    public const DOCUMENTS = [
        'account-proof' => [
            'code' => 'TPL-ACCOUNT-CERT-V2',
            'version' => '2',
            'name' => '收款账户证明',
            'file' => '收款账户证明文件.doc',
        ],
        'account-change' => [
            'code' => 'TPL-ACCOUNT-CHANGE-V1',
            'version' => '1',
            'name' => '收款账户变更',
            'file' => '收款账户变更证明.doc',
        ],
        'entity-change' => [
            'code' => 'TPL-ENTITY-CHANGE-V1',
            'version' => '1',
            'name' => '公司主体变更',
            'file' => '公司主体变更证明.docx',
        ],
        'shared-contract' => [
            'code' => 'TPL-SHARED-CONTRACT-V1',
            'version' => '1',
            'name' => '共用合同证明',
            'file' => '共用合同证明.docx',
        ],
        'cooperation-contract' => [
            'code' => 'TPL-COOPERATION-CONTRACT-V1',
            'version' => '1',
            'name' => '合作合同',
            'file' => '保丟不保损-合同发快递2024.8.doc',
        ],
        'authorization' => [
            'code' => 'TPL-AUTHORIZATION-V1',
            'version' => '1',
            'name' => '授权委托书',
            'file' => '授权委托书（快递）.docx',
        ],
        'quote-confirmation' => [
            'code' => 'TPL-QUOTE-CONFIRMATION-V1',
            'version' => '1',
            'name' => '报价确认单',
            'file' => '报价确认单（报价版本快照）.pdf',
        ],
    ];

    protected $table = 'business_courier_agreement_signatures';

    protected $fillable = [
        'company_id', 'business_no', 'idempotency_key', 'document_type', 'template_code',
        'template_version', 'source_file_name', 'status', 'courier_name', 'company_full_name',
        'organization_name', 'operator_name', 'operator_account', 'payload', 'environment',
        'expires_at', 'source_pdf_path', 'source_pdf_sha256', 'esign_file_id',
        'esign_sign_flow_id', 'remote_status', 'signed_pdf_path', 'signed_pdf_sha256',
        'certificate_path', 'certificate_sha256', 'sent_at', 'completed_at', 'archived_at',
        'last_synced_at', 'last_error', 'callback_payload_hash', 'created_by', 'updated_by',
    ];

    protected $casts = [
        'company_id' => 'integer',
        'expires_at' => 'datetime',
        'sent_at' => 'datetime',
        'completed_at' => 'datetime',
        'archived_at' => 'datetime',
        'last_synced_at' => 'datetime',
        'payload' => 'encrypted:array',
        'operator_account' => 'encrypted',
    ];

    public function partnerTypeLabel(): string
    {
        // Records created before partner types were introduced are courier tasks.
        try {
            $partnerType = $this->payload['partner_type'] ?? 'courier';
        } catch (DecryptException) {
            // Keep legacy rows with unreadable encrypted payloads renderable.
            $partnerType = 'courier';
        }

        return $partnerType === 'supplier' ? '供应商' : '快递公司';
    }

    /** Only completed archives with a readable courier snapshot belong to contract management. */
    public function archivedCourierContractPayload(): ?array
    {
        if ($this->status !== self::STATUS_ARCHIVED || $this->document_type !== 'cooperation-contract') {
            return null;
        }

        try {
            $payload = $this->payload;
        } catch (\Throwable) {
            return null;
        }

        // Before partner_type was introduced all signing tasks were courier tasks.
        return is_array($payload) && ($payload['partner_type'] ?? 'courier') === 'courier' ? $payload : null;
    }

    public function credentialDocuments(): array
    {
        try {
            return $this->payload['credential_documents'] ?? [];
        } catch (\Throwable) {
            return [];
        }
    }

    public function statusLabel(): string
    {
        return match ($this->status) {
            self::STATUS_PREPARED => '待推送',
            self::STATUS_SENDING => '推送中',
            self::STATUS_SIGNING => '待签署',
            self::STATUS_COMPLETED => '签署完成，待归档',
            self::STATUS_ARCHIVED => '已签署并归档',
            self::STATUS_REVOKED => '已撤销',
            self::STATUS_EXPIRED => '已过期',
            self::STATUS_REJECTED => '已拒签',
            self::STATUS_FAILED => '处理失败',
            self::STATUS_UNKNOWN => $this->hasDefinitiveFailure() ? '处理失败' : '状态未知，请人工核对',
            default => $this->status,
        };
    }

    public function hasDefinitiveFailure(): bool
    {
        return EsignErrorMessage::isDefinitiveFailure($this->last_error);
    }

    public function lastErrorSummary(): ?string
    {
        return EsignErrorMessage::sanitize($this->last_error);
    }

    public function canSend(): bool
    {
        return in_array($this->status, [self::STATUS_PREPARED, self::STATUS_FAILED], true)
            && blank($this->esign_sign_flow_id);
    }

    public function documentLabel(): string
    {
        foreach (\App\Support\SupplierCooperationTemplates::TEMPLATES as $template) {
            if ($this->template_code === $template['code']) {
                return $template['name'];
            }
        }
        return self::DOCUMENTS[$this->document_type]['name'] ?? $this->document_type;
    }

    /**
     * The company that initiated the request is kept in the encrypted request
     * snapshot. It is separate from organization_name, which is the E-sign
     * signing organization for the counterparty.
     */
    public function initiatorName(): string
    {
        try {
            $payloadName = trim((string) data_get($this->payload, 'signing_subject', ''));
        } catch (\Throwable) {
            // 历史记录可能由已轮换的 APP_KEY 加密。列表仍应可读，
            // 使用未加密的公司快照作为发起人回退值。
            $payloadName = '';
        }

        return $payloadName !== ''
            ? $payloadName
            : (trim((string) $this->company_full_name) ?: '—');
    }

    /**
     * Return the archive mode without allowing an unreadable historical
     * payload to turn the signing task list into a 500 response.
     */
    public function archiveMode(): string
    {
        try {
            $mode = (string) data_get($this->payload, 'archive_mode', 'auto');
        } catch (\Throwable) {
            $mode = 'auto';
        }

        return in_array($mode, ['auto', 'manual'], true) ? $mode : 'auto';
    }

    public function archiveReason(): string
    {
        try {
            return trim((string) data_get($this->payload, 'archive_reason', ''));
        } catch (\Throwable) {
            return '';
        }
    }
}