{ config, lib, pkgs, ... }:

with lib;

let
  cfg = config.services.ai-skills;
in {
  options.services.ai-skills = {
    enable = mkEnableOption "AI agent skills for Claude Code and OpenCode";
    
    skills = mkOption {
      type = types.listOf types.str;
      default = [];
      description = ''
        List of skills to deploy. Available skills:
        - niri-window-capture: Invisibly capture window screenshots
        - screenshot-latest: Find latest screenshots
        - tufte-press: Generate study card JSON
        - worklog: Create org-mode worklogs
        - update-spec-kit: Update spec-kit ecosystem
        - update-opencode: Update OpenCode via Nix
        - web-search: Search the web via Claude
        - web-research: Deep web research with multiple backends
      '';
      example = [ "worklog" "web-search" ];
    };
    
    skillsPath = mkOption {
      type = types.path;
      default = null;
      description = "Path to skills repository (e.g., ~/proj/skills/skills)";
    };
    
    enableClaudeCode = mkOption {
      type = types.bool;
      default = true;
      description = "Deploy skills to Claude Code (~/.claude/skills/)";
    };
    
    enableOpenCode = mkOption {
      type = types.bool;
      default = true;
      description = "Deploy skills to OpenCode (~/.config/opencode/skills/)";
    };
  };
  
  config = mkIf cfg.enable {
    # Deploy skills to Claude Code
    home.file = mkMerge [
      # Claude Code skills
      (mkIf cfg.enableClaudeCode (
        builtins.listToAttrs (
          map (skillName: {
            name = ".claude/skills/${skillName}";
            value = {
              source = "${cfg.skillsPath}/${skillName}";
              recursive = true;
            };
          }) cfg.skills
        )
      ))
      
      # OpenCode skills
      (mkIf cfg.enableOpenCode (
        builtins.listToAttrs (
          map (skillName: {
            name = ".config/opencode/skills/${skillName}";
            value = {
              source = "${cfg.skillsPath}/${skillName}";
              recursive = true;
            };
          }) cfg.skills
        )
      ))
    ];
  };
}