2 Commits

Author	SHA1	Message	Date
HanishKVC	b9adcbbf92	SimpleChat Completion Mode flexibility and cleanup, Settings gMe, Optional sliding window (#7480) ... * SimpleChat: A placeholder system prompt, Use usage msg in code Just have a alert msg wrt needing javascript enabled in html. And have usage message from js file. Update the usage message a bit. So also enable switch session wrt setup_ui call. Add a possible system prompt as a placeholder for the system-input. * SimpleChat:CompletionMode: Allow control of Role: prefix * SimpleChat:Completion: Avoid Role: prefix; Newline only in between In completion mode * avoid inserting Role: prefix before each role's message * avoid inserting newline at the begin and end of the prompt message. However if there are multiple role messages, then insert newline when going from one role's message to the next role's message. * SimpleChat:CompletionMode: Update readme/usage, trim textarea newline Readme update wrt completion mode behavior. Usage help updated wrt completion mode behavior. When changing from input to textarea elment wrt user input, the last newline at the end of the user input wrt textarea, was forgotten to be filtered, this is fixed now. However if user wants to have a explicit newline they can using shift+enter to insert a newline, that wont be removed. The extra newline removal logic uses substring and keyup to keep things simple and avoid some previously noted bugs wrt other events in the key path as well as IME composition etal. * SimpleChat:SC: Ensure proper clearing/reseting previous logic would have cleared/reset the xchat, without doing the same wrt iLastSys, thus leading to it pointing to a now non existent role-content entry. So if a user set a system prompt and used completion mode, it would have done the half stupid clear, after the model response was got. Inturn when user tries to send a new completion query, it would inturn lead to handle_user_submit trying to add/update system prompt if any, which will fail, bcas iLastSys will be still pointing to a non existant entry. This is fixed now, by having a proper clear helper wrt SC class. * SimpleChat: Update usage note and readme a bit * SimpleChat:Completion: clear any prev chat history at begining Previously any chat history including model response to a completion query would have got cleared, after showing the same to the user, at the end of handle_user_submit, rather than at the begining. This gave the flexibility that user could switch from chat mode to completion mode and have the chat history till then sent to the ai model, as part of the completion query. However this flow also had the issue that, if user switches between different chat sessions, after getting a completion response, they can no longer see the completion query and its response that they had just got. The new flow changes the clearing of chat history wrt completion mode to the begining of handle_user_submit, so that user doesnt lose the last completion mode query and response, till a new completion mode query is sent to the model, even if they were to switch between the chat sessions. At the same time the loss of flexibility wrt converting previous chat history into being part of the completion query implicitly doesnt matter, because now the end user can enter multiline queries. * SimpleChat:Try read json early, if available For later the server flow doesnt seem to be sending back data early, atleast for the request (inc options) that is currently sent. if able to read json data early on in future, as and when ai model is generating data, then this helper needs to indirectly update the chat div with the recieved data, without waiting for the overall data to be available. * SimpleChat: Rename the half asleep mis-spelled global var * SimpleChat: Common chat request options from a global object * SimpleChat: Update title, usage and readme a bit Keep the title simple so that print file name doesnt have chars that need to be removed. Update readme wrt some of the new helpers and options. Change Usage list to a list of lists, add few items and style it to reduce the margin wrt lists. * SimpleChat:ChatRequestOptions: max_tokens As some times based on the query from the user, the ai model may get into a run away kind of generation with repeatations etal, so adding max_tokens to try and limit this run away behaviour, if possible. * SimpleChat: Reduce max_tokens to be small but still sufficient * SimpleChat: Consolidate global vars into gMe, Display to user This allows the end user to see the settings used by the logic, as well as allows users to change/update the settings if they want to by using devel-tools/console * SimpleChat:SlidingWindow: iRecentUserMsgCnt to limit context load This is disabled by default. However if enabled, then in addition to latest system message, only the last N user messages, after the latest system message and its reponses from the ai model will be sent to the ai-model, when querying for a new response. This specified N also includes the latest user query. * SimpleChat: placeholder based usage hint for user-in textarea * SimpleChat: Try make user experience better, if possible Reduce chat history context sent to the server/ai-model to be just the system-prompt, prev-user-request-and-ai-response and cur-user-request, instead of the previous full chat history. This way if there is any response with garbage/repeatation, it doesnt mess with things beyond the next question, in some ways. Increase max_tokens to 1024, so that a relatively large previous reponse doesnt eat up the space available wrt next query-response. However dont forget that the server when started should also be started with a model context size of 1k or more, to be on safe side. Add frequency and presence penalty fields set to 1.2 to the set of fields sent to server along with the user query. So that the model is partly set to try avoid repeating text in its response. * SimpleChat:Add n_predict (equiv max_tokens) for llamacpp server The /completions endpoint of examples/server doesnt take max_tokens, instead it takes the internal n_predict, for now add the same on the client side, maybe later add max_tokens to /completions endpoint handling. * SimpleChat: Note about trying to keep things simple yet flexible	2024-05-26 10:56:34 +10:00
HanishKVC	1e374365d1	SimpleChat: a simple and dumb web front end for testing /chat/completions and /completions end points and try chat (#7350) ... * SimpleChat: Add a skeletal html page Contains a div placeholder for showing chat messages till now a text-input for allowing user to enter next chat message/query to the model. a submit button to allow sending of the user entered message and chat till now to the model. * SimpleChat: A js skeleton with SimpleChat class Allows maintaining an array of chat message. Allows adding chat message (from any of the roles be it system, user, assistant, ...) Allows showing chat messages till now, in a given div element. * SimpleChat: request_json, globals, startme * SimpleChatJS: Roles Class, submitClick Define Role class with static members corresponding to the roles. Update startme to * Get hold of the ui elements. * Attach a click handler to submit button, which adds the user input to xchats array and shows the chat messages till now in chat div element. Trap DOMContentLoaded to trigger startme * SimpleChat:HTML: Bring in the js file * SimpleChat: Rather value wrt input text element * SimpleChat: Also add completions related prompt * SimpleChat: Use common helper logic wrt json data * SimpleChat: Move handling of submit request into its own func * SimpleChat: Try handshake with llm over its web service endpoint * SimpleChat:JS: Extract model response and show to user * SimpleChat:JS: Messages/Prompt, indicate working to end user * SimpleChat: Try keep input element in view * SimpleChat: Diff user/assistant msgs, Make input wider Also show a default message to user Also add some metas * SimpleChat: Move into its own sub directory to avoid confusion * SimpleChat:sh: Add simple shell script to run python3 http.server So one needs to run the llm server locally then run this script and access it using a local browser * SimpleChat:JS: Try trap enter key press wrt input text field So user can either press submit button or press enter key * SimpleChat: Allow user to select chat or completion mode * SimpleChat: Dont submit if already submitted and waiting Also make chat the default selection wrt mode * SimpleChat:JS: Handle difference in response Try read the assistance response from appropriate field in the response got. Also examples/server seems to return the response in a slightly different field, so try account for that also. * SimpleChat:JS: Force completion mode be single message by default * SimpleChat: Add a simple readme file * SimpleChat:HTML: Cleanup/structure UI a bit, Add input for system * SimpleChat:Allow system prompt to be set, if provided before user * SimpleChat: Ignore empty user input, without trimming * SimpleChat:Alert user if they provide sysprompt late or change it * SimpleChat: Move handling systemprompt into its own func * SimpleChat:HTML: Add a style for system role message * SimpleChat: Update the readme file * SimpleChat:CSS: Move style info into its own css file To keep it simple, clean and seperate so that things are not unnecessarily cluttered. * SimpleChat:CSS: Allow for chat div to be scrollable * SimpleChat:JS: Try ensure the last entry in chat is visible Needed because now only the chat div is scrollable and not the full page. In last commit the chat div size was fixed to 75% vertical height, so the full page no longer scrolls, so the old bring user-input element to view wont work, instead now the last element in the chat div should be brought into view. * SimpleChat:JS: bottom of element visible, Set focus to user input As the generated text could be multiple lines and occupy more space that the full scrollable div's vertical space, make the bottom of the last element (which can be such a generated text) in the div visible by scrolling. Ensure that the user input box has focus * SimpleChat: Update notes a bit. Try keep browser happy Avoid browser quirk mode with DOCTYPE. Help with accessibility a bit by specifying the language explicitly. Specify the char encoding explicitly, inturn utf-8 is a safe bet, even with intermixing of languages if reqd in future. Add a cache-control http-equiv meta tag, which in all probability will be ignored. Defer js loading and execution, just for fun and future, not that critical here as it stands now. * SimpleChat:HTML:Group user input+btn together; Note about multichat * SimpleChat:JS: Allow for changing system prompt anytime for future * SimpleChat:Readme: Note about handle_systemprompt begin/anytime * SimpleChat:HTML: Add viewport meta for better mobile friendliness Without this the page content may look too small. * SimpleChat:HtmlCss: Cleanup UI flow set margin wrt vmin rather than vw or vh so portrait/landscape ok. Use flex and flex-grow to put things on the same line as well as distribute available space as needed. Given two main elements/line so it remains simple. In each line have one element with grows and one sits with a basic comfortably fixed size. * SimpleChat: textarea for multiline user chat, inturn shift+enter 4 enter * SimpleChat: Make vertical layout better responsive (flex based) Also needed to make things cleaner and properly usable whether landscape or portrait, after changing to multiline textarea rather than single line user input. Avoid hardcoding the chat-till-now display area height, instead make it a flex-growable within a flex column of ui elements within a fixed vertical area. * SimpleChat: Rename simplechat.html to index.html, update readme Instead of providing a seperate shell script, update the readme wrt how to run/use this web front end. * SimpleChat: Screen fixed view and scrolling, Printing full * SimpleChat:JS:CI: Avoid space at end of jsdoc param line * SimpleChat:JS: MultiChat initial skeleton Will help maintain multiple independent chats in future * SimpleChat:JS: Move system prompt begin/anytime into SimpleChat * SimpleChat:JS:Keep MultiChatUI simple for now Worry about different chats with different servers for later. * SimpleChat:JS: Move handle submit into MultiChat, build on same Create an instance of MultiChatUI and inturn a instance of chat session, which is what the UI will inturn work on. * SimpleChat:JS: Move to dictionary of SimpleChat, instead of array * SimpleChat: Move ui elements into MultiChatUI, Update el IDs Move ui elements into MultiChatUI, so that current handleUserSubmit doesnt need to take the element arguments. Also in future, when user is allowed to switch between different chat sessions, the UI can be updated as needed by using the elements in UI already known to MultiChatUI instance. Rename the element ids' so that they follow a common convention, as well as one can identify what the element represents in a more consistant manner. * SimpleChat:MCUI:Show available chat sessions, try switch btw them Previous commits brought in / consolidated existing logic into MultiChatUI class. Now start adding logic towards multichat support * show buttons indicating available chat sessions * on sessin button click, try switch to that session * SimpleChat:MCUI: Store and use current chat session id Also allow to switch chat session optionally, wrt some of the related helpers. setup for two chat sessions by default. * SimpleChat:MCUI: Delay enabling user-input to avoid race Re-enable user-input, only after response to a user query has been updated to the chat-div. This ensures that if user tries to switch chat session, it wont be allowed till chat-request-response flow is done. * SimpleChat: Take care of system prompt Helper to get the latest system prompt and inturn use same to set the system prompt ui, when switching. Ensure that system prompt is set if and when enter key is pressed. * SimpleChat:GetSystemLatest, fix a oversight. * SimpleChat:MCUI: Allow selected chat-session btn to be highlighted Also have a general helper for setting class of children. * SimpleChat:Cleanup corners Show system prompt in chat space, when it is set by pressing enter, as a feedback to user. Alert user, if they try to switch chat session in the middle of waiting for a response from the ai model. * SimpleChat:MCUI: Ensure req-resp failure doesnt lock up things * SimpleChat:MCUI: Support for new chat sessions Also a general create button helper. * SimpleChat:MCUI: CreateSessionBtn helper, use wrt NewChat Also fix a oversight wrt using stale data wrt the list of chat sessions. * SimpleChat:MCUI: NewChat btn first before existing chat sessions * SimpleChat:MCUI:CornerCases:Skip new chat, show only if current Skip NewChat if user cancels or if one waiting for response from the ai model. Dont show a chat with newly got ai model response, if current chat session has changed, some how. Chat session shouldnt be allowed to change, if there is a pending response, but still as a additional sanity check. * SimpleChat: Update readme, title, show usage if no chat to show * SimpleChat: Cleanup the log/dialog messages a bit	2024-05-23 03:53:21 +10:00