o hy2@s2UdZddlmZmZddlmZddlmZmZm Z ddl m Z m Z ddl Z ddlmZddlmZe je jd d e eZdae eed <ed efd dZedddedZejedgddgdgdGdddeZGdddeZGdddeZGdddeZej ddgd d!d"Z!ej"d#ed$gd%d&efd'd(Z#ej d)ed*gd%d+d,Z$ej d-d*gd d.d/Z%ej"d0d*gd d1e&fd2d3Z'ej(d4d*gd d1e&fd5d6Z)e*e+d7d8Z,ed9krddl-Z-e.d:e.d;e.d<e.d=e.d>e.d?e.d@e.dAe-j/dBdCdDdEdFdGdSdS)Hz PROFESSIONAL IMAGE GENERATION API ================================== FastAPI server with preloaded SDXL and SD15 models for instant generation )FastAPI HTTPException)CORSMiddleware) BaseModelField validator)ListOptionalN)asynccontextmanager)LocalImageGeneratorz4%(asctime)s - %(name)s - %(levelname)s - %(message)s)levelformat generatorappc CstdtdztddgdatdWnty4}ztd|td|d }~wwd Vtd trBbd Sd S) z Lifespan context manager for model preloading on startup. Both SDXL and SD15 will be loaded into VRAM during initialization. u%🚀 Starting Image Generation API...u#📦 Preloading models into VRAM...sdxlsd15)preload_modelsu.✅ Models preloaded successfully - API ready!u$❌ Failed to initialize generator: zModel initialization failed: Nu🛑 Shutting down API...)loggerinfor r Exceptionerror RuntimeError)rerE/var/www/eduai.edurigo.com/generate_image/staging/image_generation.pylifespans    r!Professional Image Generation APIuN🚀 GPU-based Self-Hosted Image Generator with Preloaded Models (SDXL + SD15)6.0.0)title descriptionversionr*T) allow_originsallow_credentials allow_methods allow_headersc@seZdZUdZeddddddZeed<edd d d Zeed <ed ddd Z eed<edddddZ e ed<edddddZ e ed<edddddZ e ed<edddZedddZed d d!Zd"S)# ImageRequestz#Request model for image generation..z Text prompt for image generationiz(a beautiful mountain landscape at sunset)r min_length max_lengthexamplepromptzVisual style or theme realistic)rr*categoryrz#Model to use: sdxl, sd15, realisticr model_nameizImage width in pixelsi)rgelewidthzImage height in pixelsheightzNumber of images to generate image_countcCs"gd}||vrtd||S)z-Validate model name against available models.rrr,zmodel_name must be one of:  ValueError)clsvalueallowed_modelsrrrvalidate_model_namessz ImageRequest.validate_model_namecCs(d|kr dkstdtd|S)z0Validate image count is within acceptable range.r4r'z#image_count must be between 1 and 3r7)r9r:rrrvalidate_image_count{s z!ImageRequest.validate_image_countcCs*gd}||vrtd|d|S)z'Validate category against known styles.r,3d cartoonisticcomicanime cinematicfantasy cyberpunkzUnknown category 'z ', defaulting to realistic style)lowerrwarning)r9r:allowed_categoriesrrrvalidate_categorys zImageRequest.validate_categoryN)__name__ __module__ __qualname____doc__rr+str__annotations__r-r.r2intr3r5rr<r=rIrrrrr&LsV   r&c@s:eZdZUdZedddZeed<edddZeed<dS) ImageDatazSingle image data..zUnique image identifierrnamezBase64 encoded image database64N) rJrKrLrMrrSrNrOrTrrrrrQs rQc@sNeZdZUdZedddZeed<edddZeed<edddZ e ed <d S) ImageResponsez/Response model for successful image generation..zResponse statusrRstatuszHuman-readable messagemessagezGenerated image datadataN) rJrKrLrMrrVrNrOrWrXdictrrrrrUs rUc@s"eZdZUdZeed<eed<dS)HealthResponsez Response model for health check.rVrXN)rJrKrLrMrNrOrYrrrrrZs  rZ/Info)tagsc s dddddgdddd d d S) z)API root endpoint with basic information.rr operationalrr/generate-image/health/modelsz/docs)generatehealthmodelsdocs)servicer rVpreloaded_models endpointsrrrrrrootsrir_ Generation)response_modelr]requestc s*tdur tdddtd|jd|jd|jd|jd td |jdd d zDtj |j|j |j|j|j|jd }|sItd ddtdt |dddt |d|j ||j|jd|j|j ddWSt y}ztdt|td dt|dd}~ww)a Generate one or more images using preloaded GPU models. This endpoint uses models that are already loaded in VRAM, providing near-instant generation without loading delays. Args: request: ImageRequest containing generation parameters Returns: ImageResponse with generated base64 encoded images Raises: HTTPException: If generation fails or models not available Nz5Generator not initialized. Please restart the server. status_codedetailu📥 New request: z | xz image(s)z Prompt: Pz...)r+r-r.r2r3r5z1Image generation failed. No images were produced.u✅ Successfully generated successzSuccessfully generated z image(s) using )images model_used dimensionsr-)rVrWrXu❌ Generation error: zError generating image: )rrrrr.r2r3r5r+generate_multiple_imagesr-lenupperrrrN)rlrurrrrgenerate_imagesN,   r{r`Systemc sntdur tdddz t}d|dWSty6}ztdt|tdd t|dd}~ww) ab Comprehensive health check of GPU, models, and system status. Returns detailed information about: - GPU availability and VRAM usage - Preloaded models status - PyTorch and CUDA versions Returns: HealthResponse with system health information Raises: HTTPException: If health check fails NrmGenerator not initializedrnrtrVrXu❌ Health check failed: rszHealth check failed: )rr check_healthrrrrN) health_statusrrrr health_checks& rracs:tdur tddddgdttjgddd S) z List all available and currently loaded models. Returns: Dictionary containing available and loaded models Nrmr}rnrtr6r>)available_modelsrgsupported_categoriesr~)rrlist pipelineskeysrrrr list_modelss rz/models/load/{model_name}r.c stdur tdddgd}||vrtdd|dz!t|}|r4dd |d ttjd WStd d |ddtyT}z td dt|dd}~ww)a  Load an additional model into VRAM on-demand. Args: model_name: Name of model to load (sdxl, sd15, realistic) Returns: Success message if model loaded Raises: HTTPException: If model loading fails Nrmr}rnr6izInvalid model name. Allowed: rtModel 'z' loaded successfully)rVrWrgrszFailed to load model ''zError loading model: )rrload_additional_modelrrrrrN)r.r;rtrrrr load_model,s<     rz/models/unload/{model_name}c stdur tdddz!t|}|r#dd|dttjdWStd d|d dtyC}z td d t|dd}~ww) z Unload a model from VRAM to free memory. Args: model_name: Name of model to unload Returns: Success message if model unloaded Raises: HTTPException: If model unloading fails Nrmr}rnrtrz' unloaded successfully)rVrWremaining_modelsiz' not currently loadedrszError unloading model: )rr unload_modelrrrrrN)r.rtrrrrrZs0     rcsdt|ddS)zHandle validation errors.rvalidation_error)rVrWtype)rN)rlexcrrrvalue_error_handlers r__main__zG ======================================================================u/🚀 STARTING PROFESSIONAL IMAGE GENERATION APIzF======================================================================u6📦 Models will be preloaded on startup (SDXL + SD15)u<⏱️ First startup may take 1-2 minutes for model loadingu4🌐 API will be available at: http://localhost:8000u1📖 Documentation at: http://localhost:8000/docszG====================================================================== zmain:appz0.0.0.0i@Fr)hostportreload log_level)0rMfastapirrfastapi.middleware.corsrpydanticrrrtypingrr logging contextlibr local_image_generatorr basicConfigINFO getLoggerrJrrrOrradd_middlewarer&rQrUrZgetripostr{rrrNrdeleterexception_handlerr8ruvicornprintrunrrrrs     A > " -)