Files
imphnen-backend-service/imphnen-qr/src/campaigns/application/campaign_service.rs
T
maulanasdqnandClaude Sonnet 4.6 4bba182ea3 feat: migrate imphnen-backend-qr into workspace as imphnen-qr crate
Ports the Go QR campaign overlay service to a self-contained Rust crate
nested at /v1/qr/... in the gateway.

Features:
- Auth: register, login, Google OAuth, JWT refresh (bcrypt compat with Go DB)
- Users: profile management + admin CRUD (list/role/delete)
- Campaigns: create (auto-generates QR PNG via qrcode crate), list,
  activate, delete; process-image endpoint overlays active campaign QR
  onto uploaded images (bottom-right corner, image crate)
- QR pool connects to imphnen_qr database via QR_DATABASE_URL

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-02 16:03:39 +07:00

89 lines
3.0 KiB
Rust

use async_trait::async_trait;
use image::{DynamicImage, GenericImageView, ImageFormat, imageops};
use imphnen_utils::errors::AppError;
use qrcode::QrCode;
use std::io::Cursor;
use std::sync::Arc;
use uuid::Uuid;
use crate::campaigns::domain::{
entity::{CampaignEntity, CreateCampaignInput},
repository::CampaignRepository,
service::QrCampaignService,
};
pub struct QrCampaignServiceImpl {
repo: Arc<dyn CampaignRepository>,
}
impl QrCampaignServiceImpl {
pub fn new(repo: Arc<dyn CampaignRepository>) -> Self {
Self { repo }
}
}
#[async_trait]
impl QrCampaignService for QrCampaignServiceImpl {
async fn create(&self, name: String, url: String, created_by: Uuid) -> Result<CampaignEntity, AppError> {
let qr = QrCode::new(url.as_bytes())
.map_err(|e| AppError::InternalServerError(e.to_string()))?;
let qr_img = qr.render::<image::Luma<u8>>().min_dimensions(256, 256).build();
let mut qr_bytes = Vec::new();
DynamicImage::ImageLuma8(qr_img)
.write_to(&mut Cursor::new(&mut qr_bytes), ImageFormat::Png)
.map_err(|e| AppError::InternalServerError(e.to_string()))?;
let input = CreateCampaignInput {
name,
url,
created_by,
qr_code_data: qr_bytes,
};
self.repo.create(input).await
}
async fn list_all(&self) -> Result<Vec<CampaignEntity>, AppError> {
self.repo.find_all().await
}
async fn get_active_qr_data(&self) -> Result<Option<Vec<u8>>, AppError> {
self.repo.find_active_qr_data().await
}
async fn set_active(&self, id: Uuid) -> Result<CampaignEntity, AppError> {
self.repo.set_active(id).await
}
async fn delete(&self, id: Uuid) -> Result<(), AppError> {
self.repo.delete(id).await
}
async fn process_image(&self, image_bytes: Vec<u8>) -> Result<Vec<u8>, AppError> {
let qr_data = self.repo.find_active_qr_data().await?
.ok_or_else(|| AppError::NotFoundError("No active campaign".to_string()))?;
let img = image::load_from_memory(&image_bytes)
.map_err(|_| AppError::BadRequestError("Invalid image format".to_string()))?;
let qr_img = image::load_from_memory(&qr_data)
.map_err(|_| AppError::InternalServerError("Failed to load QR data".to_string()))?;
let (w, h) = img.dimensions();
let qr_size = (std::cmp::min(w, h) / 5).max(100);
let qr_resized = qr_img.resize_exact(qr_size, qr_size, imageops::FilterType::Nearest);
let mut output = img.to_rgba8();
let x = (w - qr_size - 10) as i64;
let y = (h - qr_size - 10) as i64;
imageops::overlay(&mut output, &qr_resized.to_rgba8(), x, y);
let mut out_bytes = Vec::new();
DynamicImage::ImageRgba8(output)
.write_to(&mut Cursor::new(&mut out_bytes), ImageFormat::Png)
.map_err(|e| AppError::InternalServerError(e.to_string()))?;
Ok(out_bytes)
}
}