backbone-bucket 0.2.1

//! Update Thumbnail use case
//!
//! Generated by backbone-schema. Do not edit manually.

use std::sync::Arc;

use anyhow::{Result, anyhow};
use async_trait::async_trait;
use uuid::Uuid;

use super::UseCase;
use crate::domain::entity::Thumbnail;
use crate::infrastructure::persistence::ThumbnailRepository;

/// Input for updating a Thumbnail
#[derive(Debug, Clone)]
pub struct UpdateThumbnailInput {
    pub id: Uuid,
    pub deleted_at: Option<DateTime<Utc>>,
    pub file_id: Option<Uuid>,
    pub size: Option<ThumbnailSize>,
    pub width: Option<i32>,
    pub height: Option<i32>,
    pub storage_key: Option<String>,
    pub storage_backend: Option<String>,
    pub mime_type: Option<String>,
    pub format: Option<String>,
    pub quality: Option<i32>,
    pub size_bytes: Option<i64>,
    pub generated_at: Option<DateTime<Utc>>,
    pub generation_time_ms: Option<i32>,
    pub source_version: Option<i32>,
    pub cdn_url: Option<String>,
    pub cache_expires_at: Option<DateTime<Utc>>,
    pub is_stale: Option<bool>,
}

/// Output after updating a Thumbnail
#[derive(Debug, Clone)]
pub struct UpdateThumbnailOutput {
    pub thumbnail: Thumbnail,
}

/// Use case for updating an existing Thumbnail
pub struct UpdateThumbnailUseCase {
    repository: Arc<ThumbnailRepository>,
}

impl UpdateThumbnailUseCase {
    pub fn new(repository: Arc<ThumbnailRepository>) -> Self {
        Self { repository }
    }
}

#[async_trait]
impl UseCase for UpdateThumbnailUseCase {
    type Input = UpdateThumbnailInput;
    type Output = UpdateThumbnailOutput;

    async fn execute(&self, input: Self::Input) -> Result<Self::Output> {
        // Fetch existing entity
        let mut entity = self.repository.find_by_id(input.id).await?
            .ok_or_else(|| anyhow!("Thumbnail not found"))?;

        // Apply updates
        entity.updated_at = Some(chrono::Utc::now());
        if input.deleted_at.is_some() {
            entity.deleted_at = input.deleted_at;
        }
        if let Some(val) = input.file_id {
            entity.file_id = val;
        }
        if let Some(val) = input.size {
            entity.size = val;
        }
        if let Some(val) = input.width {
            entity.width = val;
        }
        if let Some(val) = input.height {
            entity.height = val;
        }
        if let Some(val) = input.storage_key {
            entity.storage_key = val;
        }
        if let Some(val) = input.storage_backend {
            entity.storage_backend = val;
        }
        if let Some(val) = input.mime_type {
            entity.mime_type = val;
        }
        if let Some(val) = input.format {
            entity.format = val;
        }
        if let Some(val) = input.quality {
            entity.quality = val;
        }
        if let Some(val) = input.size_bytes {
            entity.size_bytes = val;
        }
        if let Some(val) = input.generated_at {
            entity.generated_at = val;
        }
        if let Some(val) = input.generation_time_ms {
            entity.generation_time_ms = val;
        }
        if let Some(val) = input.source_version {
            entity.source_version = val;
        }
        if let Some(val) = input.cdn_url {
            entity.cdn_url = val;
        }
        if let Some(val) = input.cache_expires_at {
            entity.cache_expires_at = val;
        }
        if let Some(val) = input.is_stale {
            entity.is_stale = val;
        }

        // <<< CUSTOM VALIDATION START >>>
        // Add custom validation logic here
        // <<< CUSTOM VALIDATION END >>>

        // Persist updates
        let updated = self.repository.update(entity).await?;

        Ok(UpdateThumbnailOutput { thumbnail: updated })
    }
}