// modules/helpdesk/helpdesk.message.service.ts
import { FastifyInstance } from 'fastify'

export async function addMessage(
    server: FastifyInstance,
    {
        tenant_id,
        conversation_id,
        author_user_id = null,
        direction = 'incoming',
        payload,
        raw_meta = null,
        external_message_id = null,
    }: {
        tenant_id: number
        conversation_id: string
        author_user_id?: string | null
        direction?: 'incoming' | 'outgoing' | 'internal' | 'system'
        payload: any
        raw_meta?: any
        external_message_id?: string
    }
) {
    if (!payload?.text) throw new Error('Message payload requires text content')

    const { data: message, error } = await server.supabase
        .from('helpdesk_messages')
        .insert({
            tenant_id,
            conversation_id,
            author_user_id,
            direction,
            payload,
            raw_meta,
            created_at: new Date().toISOString(),
        })
        .select()
        .single()

    if (error) throw error

    // Letzte Nachricht aktualisieren
    await server.supabase
        .from('helpdesk_conversations')
        .update({ last_message_at: new Date().toISOString() })
        .eq('id', conversation_id)

    return message
}

export async function getMessages(server: FastifyInstance, conversation_id: string) {
    const { data, error } = await server.supabase
        .from('helpdesk_messages')
        .select('*')
        .eq('conversation_id', conversation_id)
        .order('created_at', { ascending: true })

    if (error) throw error
    return data
}