<?php

namespace App\Actions\Notifications;

use App\Enums\NotificationEventType;
use Carbon\CarbonImmutable;

final readonly class TicketAssigneeChangedPayload implements NotificationEventPayload
{
    public function __construct(
        public int $projectId,
        public string $projectKey,
        public string $projectName,
        public int $ticketId,
        public string $ticketKey,
        public string $ticketTitle,
        public string $ticketUrl,
        public ?int $actorId,
        public ?string $actorName,
        public ?int $fromStatusId,
        public ?string $fromStatusLabel,
        public int $toStatusId,
        public string $toStatusLabel,
        public CarbonImmutable $occurredAt,
        public ?int $fromAssigneeId,
        public ?string $fromAssigneeName,
        public ?int $toAssigneeId,
        public ?string $toAssigneeName,
    ) {}

    public function projectId(): int
    {
        return $this->projectId;
    }

    /**
     * @return array<string, scalar|null>
     */
    public function deliveryMetadata(): array
    {
        return [
            'project_key' => $this->projectKey,
            'ticket_key' => $this->ticketKey,
        ];
    }

    /**
     * @return array<string, string>
     */
    public function discordTemplateVariables(): array
    {
        return [
            '$url' => $this->ticketUrl,
            '$ticket_key' => $this->ticketKey,
            '$ticket_title' => $this->ticketTitle,
            '$project_name' => $this->projectName,
            '$status_from' => $this->fromStatusLabel ?? '',
            '$status_to' => $this->toStatusLabel,
            '$actor_name' => $this->actorName ?? '',
            '$assignee_from' => $this->fromAssigneeName ?? '',
            '$assignee_to' => $this->toAssigneeName ?? '',
        ];
    }

    /**
     * @return array{
     *     event_type: string,
     *     project: array{id: int, key: string, name: string},
     *     ticket: array{id: int, key: string, title: string},
     *     actor: array{id: int, name: string}|null,
     *     assignee: array{
     *         from: array{id: int, name: string}|null,
     *         to: array{id: int, name: string}|null
     *     },
     *     from: array{id: int, label: string}|null,
     *     to: array{id: int, label: string},
     *     ticket_url: string,
     *     occurred_at: string
     * }
     */
    public function toArray(): array
    {
        return [
            'event_type' => NotificationEventType::TicketAssigneeChanged->value,
            'project' => [
                'id' => $this->projectId,
                'key' => $this->projectKey,
                'name' => $this->projectName,
            ],
            'ticket' => [
                'id' => $this->ticketId,
                'key' => $this->ticketKey,
                'title' => $this->ticketTitle,
            ],
            'actor' => $this->actorId === null || $this->actorName === null
                ? null
                : [
                    'id' => $this->actorId,
                    'name' => $this->actorName,
                ],
            'assignee' => [
                'from' => $this->fromAssigneeId === null || $this->fromAssigneeName === null
                    ? null
                    : [
                        'id' => $this->fromAssigneeId,
                        'name' => $this->fromAssigneeName,
                    ],
                'to' => $this->toAssigneeId === null || $this->toAssigneeName === null
                    ? null
                    : [
                        'id' => $this->toAssigneeId,
                        'name' => $this->toAssigneeName,
                    ],
            ],
            'from' => $this->fromStatusId === null || $this->fromStatusLabel === null
                ? null
                : [
                    'id' => $this->fromStatusId,
                    'label' => $this->fromStatusLabel,
                ],
            'to' => [
                'id' => $this->toStatusId,
                'label' => $this->toStatusLabel,
            ],
            'ticket_url' => $this->ticketUrl,
            'occurred_at' => $this->occurredAt->toISOString(),
        ];
    }
}