//! DTO-Aggregat für den PDF-Lieferreport.
//!
//! Bündelt **alle** Informationen zu einer Lieferung inkl. der beiden
//! Audit-Trails (`scan_audit`, `delivery_credit_audit`). Wird vom
//! `DeliveryReportRepository` (DB) befüllt; die Bild-Bytes (Unterschriften,
//! Anhänge) hängt der Use Case nachträglich aus dem lokalen Speicher an,
//! damit der Renderer rein (ohne IO) bleibt.

use chrono::{DateTime, NaiveDate, Utc};

#[derive(Debug, Clone)]
pub struct DeliveryReportData {
    pub generated_at: DateTime<Utc>,
    // Kopf
    pub belegart_id: i64,
    /// Belegart-Kurzcode (z. B. „VL5"), falls vom Sync befüllt.
    pub belegart_code: Option<String>,
    /// Belegart-Klartext (z. B. „Lieferschein EH").
    pub belegart_name: Option<String>,
    pub belegnummer: String,
    pub state: String,
    pub tour_date: NaiveDate,
    pub driver_personalnummer: i64,
    pub driver_name: String,
    pub car_plate: Option<String>,
    pub payment_method: Option<String>,
    // Kunde + Adresse
    pub customer_number: i64,
    pub customer_name: String,
    pub address: String,
    pub desired_time: Option<String>,
    pub special_agreements: Option<String>,
    pub prepaid_amount: f64,
    pub current_credit_cents: i64,
    pub contacts: Vec<ReportContact>,
    pub items: Vec<ReportItem>,
    pub services: Vec<ReportService>,
    pub notes: Vec<ReportNote>,
    pub completion: Option<ReportCompletion>,
    pub scan_audit: Vec<ReportScanAudit>,
    pub credit_audit: Vec<ReportCreditAudit>,
    pub attachments: Vec<ReportAttachment>,
    // Bild-Bytes (vom Use Case aus dem lokalen Speicher nachgeladen):
    pub customer_signature_png: Option<Vec<u8>>,
    pub driver_signature_png: Option<Vec<u8>>,
}

#[derive(Debug, Clone)]
pub struct ReportContact {
    pub name: String,
    pub detail: Option<String>,
}

#[derive(Debug, Clone)]
pub struct ReportItem {
    pub belegzeilen_nr: i32,
    pub komponenten_artikel_nr: Option<String>,
    pub parent_artikel_nr: Option<String>,
    pub article_number: String,
    pub name: String,
    pub required_quantity: i32,
    pub credited_quantity: i32,
    pub scanned_quantity: i32,
    pub scan_status: String,
    pub unit_price: f64,
    pub warehouse_code: Option<String>,
    pub warehouse_name: Option<String>,
}

impl ReportItem {
    pub fn is_component(&self) -> bool {
        self.komponenten_artikel_nr.is_some()
    }
    /// Tatsächlich ausgeliefert = Soll − Gutschrift.
    pub fn delivered(&self) -> i32 {
        (self.required_quantity - self.credited_quantity).max(0)
    }
}

#[derive(Debug, Clone)]
pub struct ReportService {
    pub name: String,
    pub bool_value: Option<bool>,
    pub numeric_value: Option<i32>,
}

#[derive(Debug, Clone)]
pub struct ReportNote {
    pub created_at: DateTime<Utc>,
    pub author_personalnummer: i64,
    pub text: Option<String>,
    pub image_attachment: Option<String>,
    pub is_amount_credit_note: bool,
}

#[derive(Debug, Clone)]
pub struct ReportCompletion {
    pub completed_at: DateTime<Utc>,
    pub completed_by_personalnummer: i64,
    pub receipt_confirmed: bool,
    pub notes_acknowledged: bool,
    pub customer_signature_path: String,
    pub driver_signature_path: String,
    /// Fahrer hat das Inkasso (Bar/EC) bestätigt.
    pub payment_collected: bool,
    /// Snapshot des kassierten offenen Betrags in Cent (None = kein Inkasso).
    pub collected_amount_cents: Option<i64>,
}

#[derive(Debug, Clone)]
pub struct ReportScanAudit {
    pub server_recorded_at: DateTime<Utc>,
    pub client_scanned_at: DateTime<Utc>,
    pub action: String,
    pub delta: i32,
    pub resulting_quantity: i32,
    pub resulting_status: String,
    pub reason: Option<String>,
    pub manual: bool,
    pub credit_delta: Option<i32>,
    pub actor_personalnummer: i64,
    pub belegzeilen_nr: i32,
    pub komponenten_artikel_nr: Option<String>,
    pub article_name: Option<String>,
}

#[derive(Debug, Clone)]
pub struct ReportCreditAudit {
    pub recorded_at: DateTime<Utc>,
    pub action: String,
    pub amount_cents: i64,
    pub reason: Option<String>,
    pub author_personalnummer: i64,
}

#[derive(Debug, Clone)]
pub struct ReportAttachment {
    pub filename: Option<String>,
    /// Speicher-Referenz (lokaler relativer Pfad) — zum Nachladen der Bytes.
    pub reference: String,
    pub mime_type: String,
    pub size_bytes: i64,
    pub width: Option<i32>,
    pub height: Option<i32>,
    pub uploaded_at: DateTime<Utc>,
    pub uploaded_by: i64,
    /// Vom Use Case aus dem lokalen Speicher nachgeladen (fürs Einbetten).
    pub bytes: Option<Vec<u8>>,
}