local M = {}

---@param provider_conf AvanteDefaultBaseProvider
---@param opts AvantePromptOptions
---@return string
function M.get_ReAct_system_prompt(provider_conf, opts)
  local system_prompt = opts.system_prompt
  local disable_tools = provider_conf.disable_tools or false
  if not disable_tools and opts.tools then
    local tools_prompts = [[
====

TOOL USE

You have access to a set of tools that are executed upon the user's approval. You can use one tool per message, and will receive the result of that tool use in the user's response. You use tools step-by-step to accomplish a given task, with each tool use informed by the result of the previous tool use.

# Tool Use Formatting

Tool use is formatted using XML-style tags. Each tool use is wrapped in a <tool_use> tag. The tool name is enclosed in opening and closing tags, and each parameter is similarly enclosed within its own set of tags. Here's the structure:

<tool_use>
<tool_name>
<parameter1_name>value1</parameter1_name>
<parameter2_name>value2</parameter2_name>
...
</tool_name>
</tool_use>

For example:

<tool_use>
<attempt_completion>
<result>
I have completed the task...
</result>
</attempt_completion>
</tool_use>

<tool_use>
<bash>
<path>./src</path>
<command>npm run dev</command>
</bash>
</tool_use>

ALWAYS ADHERE TO this format for the tool use to ensure proper parsing and execution.

## OUTPUT FORMAT
Please remember you are not allowed to use any format related to function calling or fc or tool_code.

# Tools

]]
    for _, tool in ipairs(opts.tools) do
      local tool_prompt = ([[
## {{name}}
Description: {{description}}
Parameters:
]]):gsub("{{name}}", tool.name):gsub(
        "{{description}}",
        tool.get_description and tool.get_description() or (tool.description or "")
      )
      for _, field in ipairs(tool.param.fields) do
        if field.optional then
          tool_prompt = tool_prompt .. string.format(" - %s: %s\n", field.name, field.description)
        else
          tool_prompt = tool_prompt
            .. string.format(
              " - %s: (required) %s\n",
              field.name,
              field.get_description and field.get_description() or (field.description or "")
            )
        end
      end
      if tool.param.usage then
        tool_prompt = tool_prompt
          .. ("Usage:\n<tool_use>\n<{{name}}>\n"):gsub("{{([%w_]+)}}", function(name) return tool[name] end)
        for k, v in pairs(tool.param.usage) do
          tool_prompt = tool_prompt .. "<" .. k .. ">" .. tostring(v) .. "</" .. k .. ">\n"
        end
        tool_prompt = tool_prompt
          .. ("</{{name}}>\n</tool_use>\n"):gsub("{{([%w_]+)}}", function(name) return tool[name] end)
      end
      tools_prompts = tools_prompts .. tool_prompt .. "\n"
    end

    system_prompt = system_prompt .. tools_prompts

    system_prompt = system_prompt
      .. [[
# Tool Use Examples

## Example 1: Requesting to execute a command

<tool_use>
<bash>
<path>./src</path>
<command>npm run dev</command>
</bash>
</tool_use>

## Example 2: Requesting to create a new file

<tool_use>
<write_to_file>
<path>src/frontend-config.json</path>
<content>
{
  "apiEndpoint": "https://api.example.com",
  "theme": {
    "primaryColor": "#007bff",
    "secondaryColor": "#6c757d",
    "fontFamily": "Arial, sans-serif"
  },
  "features": {
    "darkMode": true,
    "notifications": true,
    "analytics": false
  },
  "version": "1.0.0"
}
</content>
</write_to_file>
</tool_use>

## Example 3: Requesting to make targeted edits to a file

<tool_use>
<replace_in_file>
<path>src/components/App.tsx</path>
<diff>
------- SEARCH
import React from 'react';
=======
import React, { useState } from 'react';
+++++++ REPLACE

------- SEARCH
function handleSubmit() {
  saveData();
  setLoading(false);
}

=======
+++++++ REPLACE

------- SEARCH
return (
  <div>
=======
function handleSubmit() {
  saveData();
  setLoading(false);
}

return (
  <div>
+++++++ REPLACE
</diff>
</replace_in_file>
</tool_use>

## Example 4: Complete current task

<tool_use>
<attempt_completion>
<result>
I've successfully created the requested React component with the following features:
- Responsive layout
- Dark/light mode toggle
- Form validation
- API integration
</result>
</attempt_completion>
</tool_use>

## Example 5: Add todos

<tool_use>
<add_todos>
<todos>
[
  {
    "id": "1",
    "content": "Implement a responsive layout",
    "status": "todo",
    "priority": "low"
  },
  {
    "id": "2",
    "content": "Add dark/light mode toggle",
    "status": "todo",
    "priority": "medium"
  },
]
</todos>
</add_todos>
</tool_use>

## Example 6: Update todo status

<tool_use>
<update_todo_status>
<id>1</id>
<status>done</status>
</update_todo_status>
</tool_use>
]]
  end
  return system_prompt
end

--- Get the content of AGENTS.md or CLAUDE.md or OPENCODE.md
---@return string | nil
function M.get_agents_rules_prompt()
  local Utils = require("avante.utils")
  local project_root = Utils.get_project_root()
  local file_names = {
    "AGENTS.md",
    "CLAUDE.md",
    "OPENCODE.md",
    ".cursorrules",
    ".windsurfrules",
    Utils.join_paths(".github", "copilot-instructions.md"),
  }
  for _, file_name in ipairs(file_names) do
    local file_path = Utils.join_paths(project_root, file_name)
    if vim.fn.filereadable(file_path) == 1 then
      local content = vim.fn.readfile(file_path)
      if content then return table.concat(content, "\n") end
    end
  end
  return nil
end

return M