{
  config,
  lib,
  pkgs,
  pkgs-unstable,
  ...
}:
let
  cfg = config.programs.zed-editor;
  ameba-ls = pkgs.stdenv.mkDerivation rec {
    pname = "ameba-ls";
    version = "0.1.0";

    src =
      let
        selectSystem =
          attrs:
          attrs.${pkgs.stdenv.hostPlatform.system}
            or (throw "Unsupported system: ${pkgs.stdenv.hostPlatform.system}");
      in
      pkgs.fetchurl (selectSystem {
        x86_64-linux = {
          url = "https://github.com/crystal-lang-tools/ameba-ls/releases/download/v${version}/ameba-ls-${version}-x86_64-linux-musl.tar.gz";
          hash = "sha256-NtqR8NHytuHT1XIhRVvnp7Lo4Ed9UGbISbTn/BfLGA8=";
        };
        aarch64-linux = {
          url = "https://github.com/crystal-lang-tools/ameba-ls/releases/download/v${version}/ameba-ls-${version}-aarch64-linux-musl.tar.gz";
          hash = "sha256-77iqdaI+Mqivk0/9jkNdGpluDbz297vsY9wzuipcPOU=";
        };
        aarch64-darwin = {
          url = "https://github.com/crystal-lang-tools/ameba-ls/releases/download/v${version}/ameba-ls-${version}-aarch64-apple-darwin.tar.gz";
          hash = "sha256-tDB+ZjgjlGjNg3DjX09z1dJnqTv9h/1sXiauBj7uHNc=";
        };
      });

    sourceRoot = ".";

    installPhase = ''
      runHook preInstall
      mkdir -p $out/bin
      cp ameba-ls $out/bin/
      chmod +x $out/bin/ameba-ls
      runHook postInstall
    '';

    meta = with lib; {
      description = "Language server for the Ameba linter for Crystal lang";
      homepage = "https://github.com/crystal-lang-tools/ameba-ls";
      license = licenses.mit;
      platforms = [
        "x86_64-linux"
        "aarch64-linux"
        "aarch64-darwin"
      ];
      mainProgram = "ameba-ls";
    };
  };
in
{
  options.programs.zed-editor = {
    defaultEditor = lib.mkOption {
      type = lib.types.bool;
      default = false;
    };
  };

  config = lib.mkIf cfg.enable {
    programs.zed-editor = {
      package = pkgs-unstable.zed-editor;
      extensions = [
        "ruby"
        "crystal"
        "nix"
        "svelte"
      ];
      userSettings = {
        node = {
          path = lib.getExe pkgs.nodejs_latest;
          npm_path = lib.getExe' pkgs.nodejs_latest "npm";
        };
        agent = {
          enabled = true;
          default_model = {
            provider = "openai";
            model = "kimi-k2.5";
          };
        };
        auto_update = false;
        telemetry = {
          diagnostics = false;
          metrics = false;
        };
        vim_mode = true;
        languages = {
          Ruby = {
            language_servers = [
              "ruby-lsp"
              "rubocop"
              "!solargraph"
            ];
            formatter.external = {
              command = pkgs.writeShellScript "rufo" ''
                bundle exec rufo "$@"
                if [ $? -eq 1 ]; then
                  exit 1
                fi
              '';
              arguments = [
                "--filename"
                "{buffer_path}"
              ];
            };
          };
          Nix = {
            formatter.external = {
              command = lib.getExe pkgs.nixfmt-rfc-style;
              arguments = [ "-q" ];
            };
          };
          Rust = {
            formatter.external = {
              command = lib.getExe pkgs.rustfmt;
              arguments = [
                "--edition"
                "2018"
              ];
            };
          };
          Crystal = {
            language_servers = [
              "crystalline"
              "ameba-ls"
            ];
            formatter.external = {
              command = lib.getExe pkgs.crystal;
              arguments = [
                "tool"
                "format"
                "--no-color"
                "-"
              ];
            };
          };
        };
        lsp = with pkgs; {
          nixd.binary.path = lib.getExe nixd;
          nil.binary.path = lib.getExe nil;
          ruby-lsp = {
            initialization_options = {
              enabledFeatures = {
                codeActions = true;
                codeLens = true;
                completion = true;
                definition = true;
                diagnostics = true;
                documentHighlights = true;
                documentLink = true;
                documentSymbols = true;
                foldingRanges = true;
                formatting = false;
                hover = true;
                inlayHint = true;
                onTypeFormatting = true;
                selectionRanges = true;
                semanticHighlighting = true;
                signatureHelp = true;
                typeHierarchy = true;
                workspaceSymbol = true;
              };
              linters = [ "standard" ];
            };
            settings.use_bundler = true;
          };
          rubocop.binary = {
            path = "bundle";
            arguments = [
              "exec"
              "rubocop"
              "--lsp"
            ];
          };
          yaml-language-server.binary = {
            path = lib.getExe yaml-language-server;
            arguments = [ "--stdio" ];
          };
          json-language-server.binary = {
            path = lib.getExe nodePackages.vscode-json-languageserver;
            arguments = [ "--stdio" ];
          };
          package-version-server.binary.path = lib.getExe pkgs-unstable.package-version-server;
          eslint.settings.onIgnoredFiles = "off";
          crystalline.binary.path = lib.getExe crystalline;
          ameba-ls.binary.path = lib.getExe ameba-ls;
          rust-analyzer.binary.path = lib.getExe rust-analyzer;
        };
        load_direnv = "shell_hook";
        theme = {
          mode = "system";
          light = "One Light";
          dark = "One Dark";
        };
        terminal = {
          line_height = "standard";
          font_family = "IosevkaTerm Nerd Font";
        };
        edit_predictions = {
          enabled = true;
          mode = "eager";
          provider = "copilot";
        };
        buffer_font_family = "Iosevka Nerd Font";
        buffer_font_size = 16;
        ui_font_size = 17;
        relative_line_numbers = "enabled";
        file_types = {
          JSONC = [
            "tsconfig.json"
            "tsconfig.*.json"
          ];
        };
        language_models = {
          openai = {
            api_url = "https://opencode.ai/zen/v1";
            available_models = [
              # Claude models
              {
                name = "claude-opus-4-6";
                display_name = "OpenCode Zen - Claude Opus 4.6";
                max_tokens = 1048576;
              }
              {
                name = "claude-opus-4-5";
                display_name = "OpenCode Zen - Claude Opus 4.5";
                max_tokens = 200000;
              }
              {
                name = "claude-opus-4-1";
                display_name = "OpenCode Zen - Claude Opus 4.1";
                max_tokens = 200000;
              }
              {
                name = "claude-sonnet-4";
                display_name = "OpenCode Zen - Claude Sonnet 4";
                max_tokens = 1048576;
              }
              {
                name = "claude-sonnet-4-5";
                display_name = "OpenCode Zen - Claude Sonnet 4.5";
                max_tokens = 1048576;
              }
              {
                name = "claude-3-5-haiku";
                display_name = "OpenCode Zen - Claude 3.5 Haiku";
                max_tokens = 200000;
              }
              {
                name = "claude-haiku-4-5";
                display_name = "OpenCode Zen - Claude Haiku 4.5";
                max_tokens = 200000;
              }
              # GPT models
              {
                name = "gpt-5.2";
                display_name = "OpenCode Zen - GPT 5.2";
                max_tokens = 400000;
              }
              {
                name = "gpt-5.2-codex";
                display_name = "OpenCode Zen - GPT 5.2 Codex";
                max_tokens = 400000;
              }
              {
                name = "gpt-5.1";
                display_name = "OpenCode Zen - GPT 5.1";
                max_tokens = 400000;
              }
              {
                name = "gpt-5.1-codex-max";
                display_name = "OpenCode Zen - GPT 5.1 Codex Max";
                max_tokens = 400000;
              }
              {
                name = "gpt-5.1-codex";
                display_name = "OpenCode Zen - GPT 5.1 Codex";
                max_tokens = 400000;
              }
              {
                name = "gpt-5.1-codex-mini";
                display_name = "OpenCode Zen - GPT 5.1 Codex Mini";
                max_tokens = 400000;
              }
              {
                name = "gpt-5";
                display_name = "OpenCode Zen - GPT 5";
                max_tokens = 400000;
              }
              {
                name = "gpt-5-codex";
                display_name = "OpenCode Zen - GPT 5 Codex";
                max_tokens = 400000;
              }
              {
                name = "gpt-5-nano";
                display_name = "OpenCode Zen - GPT 5 Nano";
                max_tokens = 400000;
              }
              # Gemini models
              {
                name = "gemini-3-pro";
                display_name = "OpenCode Zen - Gemini 3 Pro";
                max_tokens = 1048576;
              }
              {
                name = "gemini-3-flash";
                display_name = "OpenCode Zen - Gemini 3 Flash";
                max_tokens = 1048576;
              }
              # GLM models
              {
                name = "glm-4.7";
                display_name = "OpenCode Zen - GLM 4.7";
                max_tokens = 205000;
              }
              {
                name = "glm-4.6";
                display_name = "OpenCode Zen - GLM 4.6";
                max_tokens = 205000;
              }
              {
                name = "glm-4.7-free";
                display_name = "OpenCode Zen - GLM 4.7 Free";
                max_tokens = 205000;
              }
              # Kimi models
              {
                name = "kimi-k2.5";
                display_name = "OpenCode Zen - Kimi K2.5";
                max_tokens = 262000;
              }
              {
                name = "kimi-k2.5-free";
                display_name = "OpenCode Zen - Kimi K2.5 Free";
                max_tokens = 262000;
              }
              {
                name = "kimi-k2";
                display_name = "OpenCode Zen - Kimi K2";
                max_tokens = 262000;
              }
              {
                name = "kimi-k2-thinking";
                display_name = "OpenCode Zen - Kimi K2 Thinking";
                max_tokens = 262000;
              }
              # MiniMax models
              {
                name = "minimax-m2.1";
                display_name = "OpenCode Zen - MiniMax M2.1";
                max_tokens = 205000;
              }
              {
                name = "minimax-m2.5-free";
                display_name = "OpenCode Zen - MiniMax M2.5 Free";
                max_tokens = 205000;
              }
              {
                name = "minimax-m2.1-free";
                display_name = "OpenCode Zen - MiniMax M2.1 Free";
                max_tokens = 205000;
              }
              # Other models
              {
                name = "trinity-large-preview-free";
                display_name = "OpenCode Zen - Trinity Large Preview Free";
                max_tokens = 131000;
              }
              {
                name = "big-pickle";
                display_name = "OpenCode Zen - Big Pickle";
                max_tokens = 200000;
              }
              {
                name = "alpha-g5";
                display_name = "OpenCode Zen - Alpha G5";
                max_tokens = 200000;
              }
            ];
          };
        };
      };
      userKeymaps = [
        {
          context = "VimControl && !menu";
          bindings = {
            "space g" = [
              "task::Spawn"
              {
                task_name = "lazygit";
                reveal_target = "center";
              }
            ];
            "space r" = "pane::DeploySearch";
            "space f" = [
              "file_finder::Toggle"
              { separate_history = true; }
            ];
            "space :" = "task::Spawn";
            "g R" = "editor::FindAllReferences";
          };
        }
        {
          context = "Dock || Pane || Editor";
          bindings = {
            "ctrl-h" = "workspace::ActivatePaneLeft";
            "ctrl-j" = "workspace::ActivatePaneDown";
            "ctrl-k" = "workspace::ActivatePaneUp";
            "ctrl-l" = "workspace::ActivatePaneRight";
          };
        }
        {
          context = "Terminal";
          bindings = {
            "ctrl-p" = [
              "terminal::SendKeystroke"
              "ctrl-p"
            ];
          };
        }
      ];

      userTasks = [
        {
          label = "lazygit";
          command = lib.getExe config.programs.lazygit.package;
          env = {
            EDITOR = lib.getExe cfg.package;
          };
          args = [
            "-p"
            "$ZED_WORKTREE_ROOT"
          ];
          reveal = "always";
          allow_concurrent_runs = true;
          use_new_terminal = false;
          hide = "on_success";
        }
      ];
    };

    home.sessionVariables = lib.mkIf cfg.defaultEditor {
      EDITOR = "${lib.getExe cfg.package} -w";
    };
  };
}