local IS_DEV = false

local prompts = {
  -- Code related prompts
  Explain = "Please explain how the following code works.",
  Review = "Please review the following code and provide suggestions for improvement.",
  Tests = "Please explain how the selected code works, then generate unit tests for it.",
  Refactor = "Please refactor the following code to improve its clarity and readability.",
  FixCode = "Please fix the following code to make it work as intended.",
  FixError = "Please explain the error in the following text and provide a solution.",
  BetterNamings = "Please provide better names for the following variables and functions.",
  Documentation = "Please provide documentation for the following code.",
  SwaggerApiDocs = "Please provide documentation for the following API using Swagger.",
  SwaggerJsDocs = "Please write JSDoc for the following API using Swagger.",
  -- Text related prompts
  Summarize = "Please summarize the following text.",
  Spelling = "Please correct any grammar and spelling errors in the following text.",
  Wording = "Please improve the grammar and wording of the following text.",
  Concise = "Please rewrite the following text to make it more concise.",
}

return {
  {
    "CopilotC-Nvim/CopilotChat.nvim",
    build = "make tiktoken", -- Only on MacOS or Linux
    -- version = "v3.3.0",
    dependencies = {
      { "nvim-lua/plenary.nvim" },
      -- { "nvim-telescope/telescope.nvim" }, -- Using telescope instead of fzf-lua
    },
    opts = {
      -- question_header = "## User ",
      -- answer_header = "## Copilot ",
      -- error_header = "## Error ",
      prompts = prompts,
      -- Turn off Claude model as it's not working well
      model = "gpt-4.1",
      auto_follow_cursor = false, -- Don't follow the cursor after getting response

    },
    config = function(_, opts)
      local chat = require("CopilotChat")
      local select = require("CopilotChat.select")
      -- Use unnamed register for the selection
      opts.selection = select.unnamed

      -- local hostname = io.popen("hostname"):read("*a"):gsub("%s+", "")
      -- local user = hostname or vim.env.USER or "User"
      -- opts.question_header = "  " .. user .. " "
      -- opts.answer_header = "  Copilot "
      -- Override the git prompts message
      opts.prompts.Commit = {
        prompt =
        '> #git:staged\n\nWrite commit message with commitizen convention. Write clear, informative commit messages that explain the "what" and "why" behind changes, not just the "how".',
      }

      chat.setup(opts)

      vim.api.nvim_create_user_command("CopilotChatVisual", function(args)
        chat.ask(args.args, { selection = select.visual })
      end, { nargs = "*", range = true })

      -- Inline chat with Copilot
      vim.api.nvim_create_user_command("CopilotChatInline", function(args)
        chat.ask(args.args, {
          selection = select.visual,
          window = {
            layout = "float",
            relative = "cursor",
            width = 1,
            height = 0.4,
            row = 1,
          },
        })
      end, { nargs = "*", range = true })

      -- Restore CopilotChatBuffer
      vim.api.nvim_create_user_command("CopilotChatBuffer", function(args)
        chat.ask(args.args, { selection = select.buffer })
      end, { nargs = "*", range = true })

      -- Custom buffer for CopilotChat
      vim.api.nvim_create_autocmd("BufEnter", {
        pattern = "copilot-*",
        callback = function()
          vim.opt_local.relativenumber = true
          vim.opt_local.number = true

          -- Get current filetype and set it to markdown if the current filetype is copilot-chat
          local ft = vim.bo.filetype
          if ft == "copilot-chat" then
            vim.bo.filetype = "markdown"
          end
        end,
      })
    end,
  },
}