refactor: use sticky instead of stored config per chat

Instead of storing config passed to .ask to chat window, store stuff
like model, agent and context into sticky so its clearly visible

Signed-off-by: Tomas Slusny <slusnucky@gmail.com>

Author: deathbeam

lua/CopilotChat/client.lua

@@ -14,7 +14,6 @@
 ---@class CopilotChat.Client.agent : CopilotChat.Provider.agent
 ---@field provider string
 
-local async = require('plenary.async')
 local log = require('plenary.log')
 local tiktoken = require('CopilotChat.tiktoken')
 local notify = require('CopilotChat.notify')

lua/CopilotChat/config/mappings.lua

@@ -5,7 +5,6 @@ local utils = require('CopilotChat.utils')
 ---@param chat CopilotChat.ui.Chat
 ---@return CopilotChat.ui.Diff.Diff?
 local function get_diff(chat)
-  local config = chat.config
   local block = chat:get_closest_block()
 
   -- If no block found, return nil
@@ -15,7 +14,7 @@ local function get_diff(chat)
 
   -- Initialize variables with selection if available
   local header = block.header
-  local selection = copilot.get_selection(config)
+  local selection = copilot.get_selection()
   local reference = selection and selection.content
   local start_line = selection and selection.start_line
   local end_line = selection and selection.end_line
@@ -64,35 +63,15 @@ local function get_diff(chat)
   }
 end
 
----@param winnr number
----@param bufnr number
----@param start_line number
----@param end_line number
----@param config CopilotChat.config.shared
-local function jump_to_diff(winnr, bufnr, start_line, end_line, config)
-  pcall(vim.api.nvim_buf_set_mark, bufnr, '<', start_line, 0, {})
-  pcall(vim.api.nvim_buf_set_mark, bufnr, '>', end_line, 0, {})
-  pcall(vim.api.nvim_buf_set_mark, bufnr, '[', start_line, 0, {})
-  pcall(vim.api.nvim_buf_set_mark, bufnr, ']', end_line, 0, {})
-  pcall(vim.api.nvim_win_set_cursor, winnr, { start_line, 0 })
-  copilot.update_selection(config)
-end
-
 ---@param diff CopilotChat.ui.Diff.Diff?
----@param config CopilotChat.config.shared
-local function apply_diff(diff, config)
+local function apply_diff(diff)
   if not diff or not diff.bufnr then
     return
   end
 
-  local winnr = vim.fn.win_findbuf(diff.bufnr)[1]
-  if not winnr then
-    return
-  end
-
   local lines = vim.split(diff.change, '\n', { trimempty = false })
   vim.api.nvim_buf_set_lines(diff.bufnr, diff.start_line - 1, diff.end_line, false, lines)
-  jump_to_diff(winnr, diff.bufnr, diff.start_line, diff.start_line + #lines - 1, config)
+  copilot.set_selection(diff.bufnr, diff.start_line, diff.start_line + #lines - 1)
 end
 
 ---@class CopilotChat.config.mapping
@@ -208,7 +187,7 @@ return {
     normal = '<C-y>',
     insert = '<C-y>',
     callback = function(overlay, diff, chat, source)
-      apply_diff(get_diff(chat), chat.config)
+      apply_diff(get_diff(chat))
     end,
   },
 
@@ -234,8 +213,7 @@ return {
 
       source.bufnr = diff_bufnr
       vim.api.nvim_win_set_buf(source.winnr, diff_bufnr)
-
-      jump_to_diff(source.winnr, diff_bufnr, diff.start_line, diff.end_line, chat.config)
+      copilot.set_selection(diff_bufnr, diff.start_line, diff.end_line)
     end,
   },
 
@@ -278,7 +256,7 @@ return {
   quickfix_diffs = {
     normal = 'gqd',
     callback = function(overlay, diff, chat)
-      local selection = copilot.get_selection(chat.config)
+      local selection = copilot.get_selection()
       local items = {}
 
       for _, section in ipairs(chat.sections) do
@@ -345,16 +323,16 @@ return {
       end
 
       local lines = {}
-      local prompt, config = copilot.resolve_prompts(section.content, chat.config)
+      local config, prompt = copilot.resolve_prompt(section.content)
       local system_prompt = config.system_prompt
 
       async.run(function()
-        local _, selected_agent = pcall(copilot.resolve_agent, prompt, config)
-        local _, selected_model = pcall(copilot.resolve_model, prompt, config)
+        local selected_agent = copilot.resolve_agent(prompt, config)
+        local selected_model = copilot.resolve_model(prompt, config)
 
         utils.schedule_main()
-        table.insert(lines, '**Logs**: `' .. chat.config.log_path .. '`')
-        table.insert(lines, '**History**: `' .. chat.config.history_path .. '`')
+        table.insert(lines, '**Logs**: `' .. copilot.config.log_path .. '`')
+        table.insert(lines, '**History**: `' .. copilot.config.history_path .. '`')
         table.insert(lines, '**Temp Files**: `' .. vim.fn.fnamemodify(os.tmpname(), ':h') .. '`')
         table.insert(lines, '')
 
@@ -393,7 +371,7 @@ return {
 
       local lines = {}
 
-      local selection = copilot.get_selection(chat.config)
+      local selection = copilot.get_selection()
       if selection then
         table.insert(lines, '**Selection**')
         table.insert(lines, '```' .. selection.filetype)
@@ -405,10 +383,7 @@ return {
       end
 
       async.run(function()
-        local embeddings = {}
-        if section and not section.answer then
-          embeddings = copilot.resolve_embeddings(section.content, chat.config)
-        end
+        local embeddings = copilot.resolve_embeddings(section.content)
 
         for _, embedding in ipairs(embeddings) do
           local embed_lines = vim.split(embedding.content, '\n')

lua/CopilotChat/config/prompts.lua

@@ -96,11 +96,13 @@ return {
   },
 
   Explain = {
-    prompt = '> /COPILOT_EXPLAIN\n\nWrite an explanation for the selected code as paragraphs of text.',
+    prompt = 'Write an explanation for the selected code as paragraphs of text.',
+    sticky = '/COPILOT_EXPLAIN',
   },
 
   Review = {
-    prompt = '> /COPILOT_REVIEW\n\nReview the selected code.',
+    prompt = 'Review the selected code.',
+    sticky = '/COPILOT_REVIEW',
     callback = function(response, source)
       local diagnostics = {}
       for line in response:gmatch('[^\r\n]+') do
@@ -159,6 +161,7 @@ return {
   },
 
   Commit = {
-    prompt = '> #git:staged\n\nWrite commit message for the change with commitizen convention. Keep the title under 50 characters and wrap message at 72 characters. Format as a gitcommit code block.',
+    prompt = 'Write commit message for the change with commitizen convention. Keep the title under 50 characters and wrap message at 72 characters. Format as a gitcommit code block.',
+    sticky = '#git:staged',
   },
 }