3 Commits

Author	SHA1	Message	Date
HanishKVC	2ac95c9d56	SimpleChat: Simple histogram/repeatMatching driven garbageTrimming, Settings UI, Streaming mode, OpenAi Compat (Model, Authorization Bearer), Save/Restore session, Auto Settings UI (#7548) ... * SimpleChat:DU:BringIn local helper js modules using importmap Use it to bring in a simple trim garbage at end logic, which is used to trim received response. Also given that importmap assumes esm / standard js modules, so also global variables arent implicitly available outside the modules. So add it has a member of document for now * SimpleChat:DU: Add trim garbage at end in loop helper * SimpleChat:DU:TrimGarbage if unable try skip char and retry * SimpleChat:DU: Try trim using histogram based info TODO: May have to add max number of uniq chars in histogram at end of learning phase. * SimpleChat:DU: Switch trim garbage hist based to maxUniq simple Instead of blindly building histogram for specified substring length, and then checking if any new char within specified min garbage length limit, NOW exit learn state when specified maxUniq chars are found. Inturn there should be no new chars with in the specified min garbage length required limit. TODO: Need to track char classes like alphabets, numerals and special/other chars. * SimpleChat:DU: Bring in maxType to the mix along with maxUniq Allow for more uniq chars, but then ensure that a given type of char ie numerals or alphabets or other types dont cross the specified maxType limit. This allows intermixed text garbage to be identified and trimmed. * SimpleChat:DU: Cleanup debug log messages * SimpleChat:UI: Move html ui base helpers into its own module * SimpleChat:DU:Avoid setting frequence/Presence penalty Some models like llama3 found to try to be over intelligent by repeating garbage still, but by tweaking the garbage a bit so that it is not exactly same. So avoid setting these penalties and let the model's default behaviour work out, as is. Also the simple minded histogram based garbage trimming from end, works to an extent, when the garbage is more predictable and repeatative. * SimpleChat:UI: Add and use a para-create-append helper Also update the config params dump to indicate that now one needs to use document to get hold of gMe global object, this is bcas of moving to module type js. Also add ui.mjs to importmap * SimpleChat:UI: Helper to create bool button and use it wrt settings * SimpleChat:UI: Add Select helper and use it wrt ChatHistoryInCtxt * SimpleChat:UI:Select: dict-name-value, value wrt default, change Take a dict/object of name-value pairs instead of just names. Inturn specify the actual value wrt default, rather than the string representing that value. Trap the needed change event rather than click wrt select. * SimpleChat:UI: Add Div wrapped label+element helpers Move settings related elements to use the new div wrapped ones. * SimpleChat:UI:Add settings button and bring in settings ui * SimpleChat:UI:Settings make boolean button text show meaning * SimpleChat: Update a bit wrt readme and notes in du * SimpleChat: GarbageTrim enable/disable, show trimmed part ifany * SimpleChat: highlight trim, garbage trimming bitmore aggressive Make it easy for end user to identified the trimmed text. Make garbage trimming logic, consider a longer repeat garbage substring. * SimpleChat: Cleanup a bit wrt Api end point related flow Consolidate many of the Api end point related basic meta data into ApiEP class. Remove the hardcoded ApiEP/Mode settings from html+js, instead use the generic select helper logic, inturn in the settings block. Move helper to generate the appropriate request json string based on ApiEP into SimpleChat class itself. * SimpleChat:Move extracting assistant response to SimpleChat class so also the trimming of garbage. * SimpleChat:DU: Bring in both trim garbage logics to try trim * SimpleChat: Cleanup readme a bit, add one more chathistory length * SimpleChat:Stream:Initial handshake skeleton Parse the got stream responses and try extract the data from it. It allows for a part read to get a single data line or multiple data line. Inturn extract the json body and inturn the delta content/message in it. * SimpleChat: Move handling oneshot mode server response Move handling of the oneshot mode server response into SimpleChat. Also add plumbing for moving multipart server response into same. * SimpleChat: Move multi part server response handling in * SimpleChat: Add MultiPart Response handling, common trimming Add logic to call into multipart/stream server response handling. Move trimming of garbage at the end into the common handle_response helper. Add new global flag to control between oneshot and multipart/stream mode of fetching response. Allow same to be controlled by user. If in multipart/stream mode, send the stream flag to the server. * SimpleChat: show streamed generative text as it becomes available Now that the extracting of streamed generated text is implemented, add logic to show the same on the screen. * SimpleChat:DU: Add NewLines helper class To work with an array of new lines. Allow adding, appending, shifting, ... * SimpleChat:DU: Make NewLines shift more robust and flexible * SimpleChat:HandleResponseMultiPart using NewLines helper Make handle_response_multipart logic better and cleaner. Now it allows for working with the situation, where the delta data line got from server in stream mode, could be split up when recving, but still the logic will handle it appropriately. ALERT: Rather except (for now) for last data line wrt a request's response. * SimpleChat: Disable console debug by default by making it dummy Parallely save a reference to the original func. * SimpleChat:MultiPart/Stream flow cleanup Dont try utf8-decode and newlines-add_append if no data to work on. If there is no more data to get (ie done is set), then let NewLines instance return line without newline at end, So that we dont miss out on any last-data-line without newline kind of scenario. Pass stream flag wrt utf-8 decode, so that if any multi-byte char is only partly present in the passed buffer, it can be accounted for along with subsequent buffer. At sametime, bcas of utf-8's characteristics there shouldnt be any unaccounted bytes at end, for valid block of utf8 data split across chunks, so not bothering calling with stream set to false at end. LATER: Look at TextDecoder's implementation, for any over intelligence, it may be doing.. If needed, one can use done flag to account wrt both cases. * SimpleChat: Move baseUrl to Me and inturn gMe This should allow easy updating of the base url at runtime by the end user. * SimpleChat:UI: Add input element helper * SimpleChat: Add support for changing the base url This ensures that if the user is running the server with a different port or wants to try connect to server on a different machine, then this can be used. * SimpleChat: Move request headers into Me and gMe Inturn allow Authorization to be sent, if not empty. * SimpleChat: Rather need to use append to insert headers * SimpleChat: Allow Authorization header to be set by end user * SimpleChat:UI+: Return div and element wrt creatediv helpers use it to set placeholder wrt Authorization header. Also fix copy-paste oversight. * SimpleChat: readme wrt authorization, maybe minimal openai testing * SimpleChat: model request field for openai/equivalent compat May help testing with openai/equivalent web services, if they require this field. * SimpleChat: readme stream-utf-8 trim-english deps, exception2error * Readme: Add a entry for simplechat in the http server section * SimpleChat:WIP:Collate internally, Stream mode Trap exceptions This can help ensure that data fetched till that point, can be made use of, rather than losing it. On some platforms, the time taken wrt generating a long response, may lead to the network connection being broken when it enters some user-no-interaction related power saving mode. * SimpleChat:theResp-origMsg: Undo a prev change to fix non trim When the response handling was moved into SimpleChat, I had changed a flow bit unnecessarily and carelessly, which resulted in the non trim flow, missing out on retaining the ai assistant response. This has been fixed now. * SimpleChat: Save message internally in handle_response itself This ensures that throwing the caught exception again for higher up logic, doesnt lose the response collated till that time. Go through theResp.assistant in catch block, just to keep simple consistency wrt backtracing just in case. Update the readme file. * SimpleChat:Cleanup: Add spacing wrt shown req-options * SimpleChat:UI: CreateDiv Divs map to GridX2 class This allows the settings ui to be cleaner structured. * SimpleChat: Show Non SettingsUI config field by default * SimpleChat: Allow for multiline system prompt Convert SystemPrompt into a textarea with 2 rows. Reduce user-input-textarea to 2 rows from 3, so that overall vertical space usage remains same. Shorten usage messages a bit, cleanup to sync with settings ui. * SimpleChat: Add basic skeleton for saving and loading chat Inturn when ever a chat message (system/user/model) is added, the chat will be saved into browser's localStorage. * SimpleChat:ODS: Add a prefix to chatid wrt ondiskstorage key * SimpleChat:ODS:WIP:TMP: Add UI to load previously saved chat This is a temporary flow * SimpleChat:ODS:Move restore/load saved chat btn setup to Me This also allows being able to set the common system prompt ui element to loaded chat's system prompt. * SimpleChat:Readme updated wrt save and restore chat session info * SimpleChat:Show chat session restore button, only if saved session * SimpleChat: AutoCreate ChatRequestOptions settings to an extent * SimpleChat: Update main README wrt usage with server	2024-06-02 02:20:18 +10:00
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