/* https://github.com/david-haerer/chatapi MIT License Copyright (c) 2023 David Härer Copyright (c) 2024 Ettore Di Giacinto Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ function submitKey(event) { event.preventDefault(); localStorage.setItem("key", document.getElementById("apiKey").value); document.getElementById("apiKey").blur(); } function submitSystemPrompt(event) { event.preventDefault(); localStorage.setItem("system_prompt", document.getElementById("systemPrompt").value); document.getElementById("systemPrompt").blur(); } var image = ""; function submitPrompt(event) { event.preventDefault(); const input = document.getElementById("input").value; Alpine.store("chat").add("user", input, image); document.getElementById("input").value = ""; const key = localStorage.getItem("key"); const systemPrompt = localStorage.getItem("system_prompt"); promptGPT(systemPrompt, key, input); } function readInputImage() { if (!this.files || !this.files[0]) return; const FR = new FileReader(); FR.addEventListener("load", function(evt) { image = evt.target.result; }); FR.readAsDataURL(this.files[0]); } async function promptGPT(systemPrompt, key, input) { const model = document.getElementById("chat-model").value; // Set class "loader" to the element with "loader" id //document.getElementById("loader").classList.add("loader"); // Make the "loader" visible document.getElementById("loader").style.display = "block"; document.getElementById("input").disabled = true; document.getElementById('messages').scrollIntoView(false) messages = Alpine.store("chat").messages(); // if systemPrompt isn't empty, push it at the start of messages if (systemPrompt) { messages.unshift({ role: "system", content: systemPrompt }); } // loop all messages, and check if there are images. If there are, we need to change the content field messages.forEach((message) => { if (message.image) { // The content field now becomes an array message.content = [ { "type": "text", "text": message.content } ] message.content.push( { "type": "image_url", "image_url": { "url": message.image, } } ); // remove the image field delete message.image; } }); // reset the form and the image image = ""; document.getElementById("input_image").value = null; document.getElementById("fileName").innerHTML = ""; // if (image) { // // take the last element content's and add the image // last_message = messages[messages.length - 1] // // The content field now becomes an array // last_message.content = [ // { // "type": "text", // "text": last_message.content // } // ] // last_message.content.push( // { // "type": "image_url", // "image_url": { // "url": image, // } // } // ); // // and we replace it in the messages array // messages[messages.length - 1] = last_message // // reset the form and the image // image = ""; // document.getElementById("input_image").value = null; // document.getElementById("fileName").innerHTML = ""; // } // Source: https://stackoverflow.com/a/75751803/11386095 const response = await fetch("/v1/chat/completions", { method: "POST", headers: { Authorization: `Bearer ${key}`, "Content-Type": "application/json", }, body: JSON.stringify({ model: model, messages: messages, stream: true, }), }); if (!response.ok) { Alpine.store("chat").add( "assistant", `Error: POST /v1/chat/completions ${response.status}`, ); return; } const reader = response.body ?.pipeThrough(new TextDecoderStream()) .getReader(); if (!reader) { Alpine.store("chat").add( "assistant", `Error: Failed to decode API response`, ); return; } while (true) { const { value, done } = await reader.read(); if (done) break; let dataDone = false; const arr = value.split("\n"); arr.forEach((data) => { if (data.length === 0) return; if (data.startsWith(":")) return; if (data === "data: [DONE]") { dataDone = true; return; } const token = JSON.parse(data.substring(6)).choices[0].delta.content; if (!token) { return; } hljs.highlightAll(); Alpine.store("chat").add("assistant", token); document.getElementById('messages').scrollIntoView(false) }); hljs.highlightAll(); if (dataDone) break; } // Remove class "loader" from the element with "loader" id //document.getElementById("loader").classList.remove("loader"); document.getElementById("loader").style.display = "none"; // enable input document.getElementById("input").disabled = false; // scroll to the bottom of the chat document.getElementById('messages').scrollIntoView(false) // set focus to the input document.getElementById("input").focus(); } document.getElementById("key").addEventListener("submit", submitKey); document.getElementById("system_prompt").addEventListener("submit", submitSystemPrompt); document.getElementById("prompt").addEventListener("submit", submitPrompt); document.getElementById("input").focus(); document.getElementById("input_image").addEventListener("change", readInputImage); storeKey = localStorage.getItem("key"); if (storeKey) { document.getElementById("apiKey").value = storeKey; } else { document.getElementById("apiKey").value = null; } storesystemPrompt = localStorage.getItem("system_prompt"); if (storesystemPrompt) { document.getElementById("systemPrompt").value = storesystemPrompt; } else { document.getElementById("systemPrompt").value = null; } marked.setOptions({ highlight: function (code) { return hljs.highlightAuto(code).value; }, });