;; -*- lexical-binding: t; -*-

;; A handy package for running external commands
(use-package run-command
  :straight (run-command :host github :repo "bard/emacs-run-command"
                         :fork (:host github :repo "jdormit/emacs-run-command" :branch "master"))
  :init
  (defvar-local run-command-local-commands nil)
  (put 'run-command-local-commands 'safe-local-variable (lambda (_) t))
  (defvar-local run-command-project-local-commands nil)
  (put 'run-command-project-local-commands 'safe-local-variable (lambda (_) t))
  :config
  (general-def run-command-term-minor-mode-map
    [remap recompile] #'run-command-term-recompile
    "g" nil)
  (general-def 'normal run-command-term-minor-mode-map "gr" #'run-command-term-recompile)

  (defun run-command-recipe-terraform ()
    (when (directory-files default-directory
                           nil
                           (rx (one-or-more any)
                               ".tf"
                               eol))
      (list
       (list :command-name "init"
             :command-line "terraform init")
       (list :command-name "plan"
             :command-line "terraform plan")
       (list :command-name "apply"
             :command-line "terraform apply")
       (list :command-name "destroy"
             :command-line "terraform destroy"))))

  (defun run-command-recipe-local ()
    (when run-command-local-commands
      (mapcar (cl-function
               (lambda ((name . spec))
                 (let ((name (if (symbolp name) (symbol-name name) name)))
                   (list :command-name name
                         :command-line spec))))
              run-command-local-commands)))

  (defun run-command-recipe-package-json--get-scripts (package-json-file)
    "Extract NPM scripts from `package-json-file'."
    (with-temp-buffer
      (insert-file-contents package-json-file)
      (let* ((json-data (json-parse-buffer))
             (script-hash (gethash "scripts" json-data))
             (scripts '()))
        (when script-hash
          (maphash (lambda (key _value) (push key scripts)) script-hash))
        scripts)))

  (defun run-command-recipe-package-json ()
    (when-let* ((project-dir
                 (locate-dominating-file default-directory "package.json"))
                (scripts
                 (run-command-recipe-package-json--get-scripts (concat project-dir "package.json")))
                (script-runner
                 (if (file-exists-p (concat project-dir "yarn.lock")) "yarn" "npm")))
      (mapcar (lambda (script)
                (list :command-name script
                      :command-line (concat script-runner " run " script)
                      :display script
                      :working-dir project-dir))
              scripts)))

  (defun makefile-target-list-default (makefile)
    "Return the target list for MAKEFILE by parsing it."
    (let (targets)
      (with-temp-buffer
        (insert-file-contents makefile)
        (goto-char (point-min))
        (while (re-search-forward "^\\([^: \n]+\\) *:\\(?: \\|$\\)" nil t)
          (let ((str (match-string 1)))
            (unless (string-match "^\\." str)
              (push str targets)))))
      (nreverse targets)))

  (defun run-command-recipe-makefile ()
    (when-let* ((project-dir (locate-dominating-file default-directory "Makefile"))
                (makefile (concat project-dir "Makefile"))
                (targets (makefile-target-list-default makefile)))
      (mapcar (lambda (target)
                (list :command-name target
                      :command-line (concat "make " target)
                      :display target
                      :working-dir project-dir))
              targets)))

  (defun run-command-recipe-project ()
    (when (projectile-project-root)
      (mapcar (lambda (cmd)
                (when-let ((cmd-val (symbol-value
                                     (intern
                                      (format "projectile-project-%s-cmd" cmd)))))
                  (list :command-name cmd
                        :command-line cmd-val
                        :working-dir (projectile-compilation-dir))))
              '("test" "run" "compilation" "configure" "install" "package"))))

  (defun run-command-recipe-project-local ()
    (when (and run-command-project-local-commands (projectile-project-root))
      (mapcar (cl-function
               (lambda ((name . spec))
                 (let ((name (if (symbolp name) (symbol-name name) name)))
                   (list :command-name name
                         :command-line spec
                         :working-dir (projectile-compilation-dir)))))
              run-command-project-local-commands)))


  (defun run-command-recipe-executables ()
    (let* ((buffer-file (buffer-file-name))
           (executable-p (and buffer-file (file-executable-p buffer-file))))
      (list
       (when executable-p
         (list
          :command-name "run-buffer-file"
          :command-line buffer-file
          :display "Run this buffer's file"))
       (when (and executable-p (executable-find "entr"))
         (list
          :command-name "run-buffer-file-watch"
          :command-line (format "echo %s | entr -c /_" buffer-file)
          :display "Run this buffer's file (re-run on each save)")))))

  (defun run-command-recipe-obelix ()
    (when-let* ((config (or (locate-dominating-file default-directory "obelix.json")
                            (locate-dominating-file default-directory "obelix.edn")))
                (dir (file-name-directory config)))
      (list
       (list :command-name "build"
             :command-line "obelix build"
             :working-dir dir)
       (list :command-name "serve"
             :command-line "obelix serve"
             :working-dir dir))))

  (defun run-command-recipe-kustomize ()
    (when-let* ((kustomization (locate-dominating-file default-directory "kustomization.yaml"))
                (dir (file-name-directory kustomization)))
      (list
       (list :command-name "build"
             :command-line "kustomize build --enable_alpha_plugins"
             :working-dir dir))))

  (defun run-command-recipe-sops ()
    (when (save-excursion
            (goto-char (point-min))
            (search-forward-regexp "sops:" nil t))
      (list
       (list :command-name "edit"
             :command-line (format "sops %s" (buffer-file-name))))))

  (defun run-command-recipe-pytest ()
    (when (and (derived-mode-p 'python-mode)
               (= 0 (call-process "python" nil nil nil "-c" "import pytest")))
      (let ((test-file-p (string-match-p "test" (or (buffer-file-name) ""))))
        (list
         (when (and (projectile-project-root)
                    (file-exists-p (concat (file-name-as-directory (projectile-project-root))
                                           "tests")))
           (list :command-name "test all"
                 :command-line "pytest tests"
                 :working-dir (projectile-project-root)))
         (when test-file-p
           (list :command-name "test this file"
                 :command-line (format "pytest %s" (buffer-file-name))))
         (when (and test-file-p (python-info-current-defun))
           (list :command-name "test this function"
                 :command-line (format "pytest %s::%s"
                                       (buffer-file-name)
                                       (replace-regexp-in-string
                                        "\\."
                                        "::"
                                        (python-info-current-defun)))))))))

  (defun run-command-recipe-nosetests()
    (when (and (derived-mode-p 'python-mode)
               (= 0 (call-process "python" nil nil nil "-c" "import nose")))
      (let ((test-file-p (string-match-p "test" (or (buffer-file-name) ""))))
        (list
         (when (and (projectile-project-root)
                    (file-exists-p (concat (file-name-as-directory (projectile-project-root))
                                           "tests")))
           (list :command-name "test all"
                 :command-line "nosetests -w tests"
                 :working-dir (projectile-project-root)))
         (when test-file-p
           (list :command-name "test this file"
                 :command-line (format "nosetests %s" (buffer-file-name))))
         (when (and test-file-p (python-info-current-defun))
           (list :command-name "test this function"
                 :command-line (format "nosetests %s:%s"
                                       (buffer-file-name)
                                       (python-info-current-defun))))))))

  (defun run-command-recipe-web-ext ()
    (when-let* ((_ (executable-find "web-ext"))
                (manifest (locate-dominating-file default-directory "manifest.json"))
                (dir (file-name-directory manifest)))
      (list
       (list :command-name "run"
             :command-line "web-ext run"
             :working-dir dir)
       (list :command-name "build"
             :command-line "web-ext build"
             :working-dir dir))))

  (defun run-command-recipe-pip ()
    (when (and (buffer-file-name)
               (string-match-p ".*requirements.*txt$" (buffer-file-name)))
      (list
       (list :command-name "install"
             :command-line (format "pip install -r %s" (buffer-file-name))))))

  :general
  (leader-map "\"" #'run-command)
  :custom
  (run-command-run-method 'async-shell)
  (run-command-recipes '(run-command-recipe-terraform
                         run-command-recipe-local
                         run-command-recipe-package-json
                         run-command-recipe-makefile
                         run-command-recipe-project
                         run-command-recipe-project-local
                         run-command-recipe-executables
                         run-command-recipe-obelix
                         run-command-recipe-kustomize
                         run-command-recipe-sops
                         run-command-recipe-pytest
                         run-command-recipe-nosetests
                         run-command-recipe-web-ext
                         run-command-recipe-pip)))

(provide 'init-run-command)