@qr-platform/qr-code.js/lib/chunks/scan-validator-worker-nTaVszLU.js

QRCode.js is a professional JavaScript/TypeScript library for creating customized QR codes, offering a blend of simplicity and sophistication. With versatile styling options—dot shapes, colors, gradients, embedded images, borders, and text—it enables you

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e=this.inst._ImageScanner_get_results(this.ptr);return D.createSymbolsFromPtr(e,this.inst.HEAPU8.buffer)}scan(e){return this.checkAlive(),this.inst._ImageScanner_scan(this.ptr,e.getPointer())}}const P=()=>t(void 0,0,void 0,(function*(){const t=yield T.create();return t.setConfig(e.ZBarSymbolType.ZBAR_NONE,e.ZBarConfigType.ZBAR_CFG_BINARY,1),t}));let F;const x=(e,r)=>t(void 0,0,void 0,(function*(){void 0===r&&(r=F||(yield P()),F=r);const t=r.scan(e);if(t<0)throw Error("Scan Failed");return 0===t?[]:e.getSymbols()})),G=(e,r,n,a)=>t(void 0,0,void 0,(function*(){const t=yield O.createFromRGBABuffer(r,n,e),i=yield x(t,a);return t.destroy(),i}));return e.ZBarImage=O,e.ZBarScanner=T,e.ZBarSymbol=D,e.getDefaultScanner=P,e.getInstance=B,e.scanGrayBuffer=(e,r,n,a)=>t(void 0,0,void 0,(function*(){const t=yield O.createFromGrayBuffer(r,n,e),i=yield x(t,a);return t.destroy(),i})),e.scanImageData=(e,r)=>t(void 0,0,void 0,(function*(){return yield G(e.data.buffer,e.width,e.height,r)})),e.scanRGBABuffer=G,e.setModuleArgs=E,Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),e}({});a&&a.setModuleArgs&&a.setModuleArgs({instantiateWasm:n});let i=!1;const s=e=>{i&&console.debug("[QR Validator]",e)},o=new class{constructor(e={}){this.maxRetries=e.maxRetries??5,this.retryInterval=e.retryInterval??100,this.debug=e.debug??!1}log(e){this.debug&&console.log(`[QRValidatorZbarNode] ${e}`)}async validate(e,t=!1){try{if(!a.scanImageData)throw new Error("zbar-wasm library not found. Please ensure @undecaf/zbar-wasm is installed and loaded correctly.");return this.validateWithRetry(e,t)}catch(e){return this.log(`Validation error: ${e instanceof Error?e.message:String(e)}`),{isValid:!1,message:e instanceof Error?e.message:String(e),errorCode:"VALIDATION_ERROR",attempts:1,validator:"ZBar"}}}sleep(e){return new Promise((t=>setTimeout(t,e)))}async processImageResvg(t,r){try{const n=new e(t,{fitTo:{mode:"zoom",value:2}}).render(),a=n.width,i=n.height,s=n.pixels,o=Buffer.from(s);if(r)for(let e=0;e<o.length;e+=4)o[e]=255-o[e],o[e+1]=255-o[e+1],o[e+2]=255-o[e+2];return{imageData:{data:new Uint8ClampedArray(o),width:a,height:i},metadata:{width:a,height:i}}}catch(e){throw this.log(`Image processing error: ${e instanceof Error?e.message:String(e)}`),e}}async validateWithRetry(e,t){let r=0,n=null;const a=e;let i=!1;do{r++;try{const e=this.processImageResvg,{imageData:s}=await e(a,t);if(this.log(`Processed image ${s.width}x${s.height} pixels`),this.debug&&await this.saveDebugImage(s,`debug/qr-attempt-${r}-${i?"inverted":"normal"}`),n=await this.decodeQR(s),this.log(`Barcode scan attempt ${r}: ${n.success?"Success":"Failed"}`),n.success)return n.attempts=r,{isValid:!0,data:n.data,format:n.format,attempts:r,isInverted:t}}catch(e){this.log(`Attempt ${r} failed: ${e instanceof Error?e.message:String(e)}`),n={success:!1,error:e instanceof Error?e.message:String(e),errorCode:"PROCESSING_ERROR"}}!t||i?r<this.maxRetries&&await this.sleep(this.retryInterval):(i=!0,this.log("Switching to inverted image for next attempt"))}while(r<this.maxRetries);return{isValid:!1,attempts:r,message:`No barcode detected after ${r} attempts`,validator:"ZBar",errorCode:"DECODER_ERROR"}}async validateImageData(e){let t=0,r=null;do{t++;try{if(this.log(`Attempting to decode ImageData ${e.width}x${e.height} pixels (Attempt ${t})`),this.debug&&await this.saveDebugImage(e,`debug/qr-imagedata-attempt-${t}`),r=await this.decodeQR(e),this.log(`ImageData scan attempt ${t}: ${r.success?"Success":"Failed"}`),r.success)return r.attempts=t,{isValid:!0,data:r.data,format:r.format,attempts:t,isInverted:!1}}catch(e){this.log(`Attempt ${t} failed: ${e instanceof Error?e.message:String(e)}`),r={success:!1,error:e instanceof Error?e.message:String(e),errorCode:"PROCESSING_ERROR"}}t<this.maxRetries&&await this.sleep(this.retryInterval)}while(t<this.maxRetries);return{isValid:!1,attempts:t,message:`No barcode detected from ImageData after ${t} attempts`,errorCode:"DECODER_ERROR",validator:"ZBar"}}async saveDebugImage(e,r){try{const n=new t(e.width,e.height,e.data,{kind:"RGBA"}),a=`${r}-${Date.now()}`;await n.save(`${a}.png`,{format:"png"}),this.log(`Debug image saved to: ${a}`)}catch(e){this.log(`Failed to save debug image: ${e instanceof Error?e.message:String(e)}`)}}async decodeQR(e){try{let t;try{t=await a.scanImageData(e)}catch(e){this.log(`Error decoding QR code: ${e}`)}if(t&&t.length>0){const e=t[0],r=e.decode();return this.log(`Detected: ${e.typeName} - ${r}`),{success:!0,data:r,format:e.typeName||"UNKNOWN",confidence:.9,count:t.length,allSymbols:t.map((e=>({data:e.decode(),type:e.typeName,points:e.points})))}}return{success:!1,error:"No barcode detected",errorCode:"NO_BARCODE_DETECTED"}}catch(e){return this.log("Decoder error:"),console.error(e instanceof Error?e.message:String(e)),{success:!1,error:`Decoder error: ${e instanceof Error?e.message:String(e)}`,errorCode:"DECODER_ERROR"}}}}({maxRetries:3,debug:!1,retryInterval:300}),c={validateZbar:async(e,t=!1)=>{i=t||i,i&&console.time("scan-validator");const r=[{name:"Normal SVG",execute:async()=>{if(!e)throw new Error("No svg source");const t=await o.validate(e,!1);if(!t.isValid||!t.data)throw new Error("No text found in normal QR code");return{isValid:!0,isInverted:!1,data:t.data,message:t.message||"Decoded successfully.",attempts:t.attempts,validator:"ZBar"}}},{name:"Inverted SVG",execute:async()=>{if(!e)throw new Error("No svg source for inverted attempt");const t=await o.validate(e,!0);if(!t.isValid||!t.data)throw new Error("No text found in inverted QR code");return{isValid:!0,isInverted:!0,data:t.data,message:t.message||"Decoded successfully (inverted).",attempts:t.attempts,validator:"ZBar"}}}];for(const e of r)try{s(`Trying ${e.name} decode...`);const t=await e.execute();return i&&console.timeEnd("scan-validator"),t}catch(t){s(`${e.name} decode failed:`),s(t)}return i&&console.timeEnd("scan-validator"),{isValid:!1,message:"Failed to decode QR code after all attempts."}},validateZbarImageData:async(e,t=!1)=>{i=t||i,i&&console.time("scan-validator-imagedata");try{const t=await o.validateImageData(e);return i&&console.timeEnd("scan-validator-imagedata"),{isValid:t.isValid,isInverted:t.isInverted??!1,data:t.data,message:t.message||(t.isValid?"Decoded successfully from ImageData.":"Validation failed."),attempts:t.attempts,validator:"ZBar"}}catch(e){return s(`Error during Zbar ImageData validation: ${e}`),i&&console.timeEnd("scan-validator-imagedata"),{isValid:!1,isInverted:!1,message:e instanceof Error?e.message:"Unknown error during Zbar ImageData validation"}}}};export{c as qrValidatorZbar};