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biome-api.el
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biome-api.el
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;;; biome-api.el --- API for Open Meteo -*- lexical-binding: t -*-
;; Copyright (C) 2023-2024 Korytov Pavel
;; Maintainer: Korytov Pavel <thexcloud@gmail.com>
;; Homepage: https://github.com/SqrtMinusOne/biome
;; This file is NOT part of GNU Emacs.
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Make requests to Open Meteo API.
;;; Code:
(require 'json)
(require 'request)
(defconst biome-api--default-urls
'(("Weather Forecast" . "https://api.open-meteo.com/v1/forecast")
("DWD ICON (Germany)" . "https://api.open-meteo.com/v1/dwd-icon")
("NOAA GFS & HRRR (U.S.)" . "https://api.open-meteo.com/v1/gfs")
("MeteoFrance" . "https://api.open-meteo.com/v1/meteofrance")
("ECMWF" . "https://api.open-meteo.com/v1/ecmwf")
("JMA (Japan)" . "https://api.open-meteo.com/v1/jma")
("MET (Norway)" . "https://api.open-meteo.com/v1/metno")
("GEM (Canada)" . "https://api.open-meteo.com/v1/gem")
("BOM (Australia)" . "https://api.open-meteo.com/v1/bom")
("CMA (China)" . "https://api.open-meteo.com/v1/cma")
("Historical Weather" . "https://archive-api.open-meteo.com/v1/archive")
("Historical Weather (on this day)"
. "https://archive-api.open-meteo.com/v1/archive")
("Ensemble Models" . "https://ensemble-api.open-meteo.com/v1/ensemble")
("Previous Runs API" . "https://previous-runs-api.open-meteo.com/v1/forecast")
("Climate Change" . "https://climate-api.open-meteo.com/v1/climate")
("Marine Forecast" . "https://marine-api.open-meteo.com/v1/marine")
("Air Quality" . "https://air-quality-api.open-meteo.com/v1/air-quality")
("Flood" . "https://flood-api.open-meteo.com/v1/flood"))
"Default URLs for Open Meteo API.")
(defcustom biome-api-try-parse-error-as-response nil
"Try to parse error responses as normal ones.
This is a workaround for my termux setup, somehow request' gives
the parsed response to the error callback there."
:group 'biome
:type 'boolean)
(defcustom biome-api-urls biome-api--default-urls
"URLs of the Open Meteo API."
:type `(alist
:key-type string
:value-type string
:options ,(mapcar #'car biome-api--default-urls))
:group 'biome)
(defun biome-api--get-params (query)
"Convert QUERY to a list of parameters for `request'.
QUERY is a form as defined by `biome-query-current'."
(mapcar (lambda (item)
(cond
((stringp item) (cons item "true"))
((member (car item) '("end_date" "start_date"))
(cons (car item)
(format-time-string "%F" (cdr item))))
((listp item)
(cons
(car item)
(cond
((listp (cdr item)) (mapconcat #'identity (reverse (cdr item)) ","))
(t (cdr item)))))))
(alist-get :params query)))
(defun biome-error-quit ()
"Close a window and kill its buffer."
(interactive)
(quit-window t))
(defvar biome-api-error-mode-map
(let ((keymap (make-sparse-keymap)))
(define-key keymap (kbd "q") #'biome-error-quit)
(when (fboundp 'evil-define-key*)
(evil-define-key* 'normal keymap
"q" #'biome-error-quit))
keymap)
"Keymap for `biome-api-error-mode'.")
(define-derived-mode biome-api-error-mode text-mode "Biome Error"
"Major mode for viewing open meteo API errors.
\\{biome-api-error-mode-map}"
(read-only-mode 1))
(defun biome-api--show-error (error-thrown response &optional err)
"Show ERROR-THROWN and RESPONSE in a buffer."
(let ((buffer (generate-new-buffer "*biome-api-error*")))
(with-current-buffer buffer
(insert
"Open Meteo has returned an error.\n"
(propertize "Error: " 'face 'font-lock-warning-face)
(prin1-to-string error-thrown)
"\n")
(when err
(insert
(propertize "Pasing error: " 'face 'font-lock-warning-face)
(error-message-string err)
"\n"))
(condition-case nil
(insert (propertize "Reason: " 'face 'font-lock-warning-face)
(alist-get 'reason (request-response-data response))
"\n")
(error
(insert "Can't parse reason. Raw response: \n"
(prin1-to-string response))))
(biome-api-error-mode))
(switch-to-buffer buffer)))
(defun biome-api-get (query callback)
"Get data from Open Meteo API.
QUERY is a form as defined by `biome-query-current'. CALLBACK is
called with QUERY and the data returned by the API as arguments."
(let ((url (alist-get (alist-get :name query)
biome-api-urls nil nil #'equal)))
(request url
:type "GET"
:params (biome-api--get-params query)
:parser #'json-read
:success (cl-function
(lambda (&key data &allow-other-keys)
(funcall callback (copy-tree query) data)))
:error
(cl-function
(lambda (&key error-thrown response &allow-other-keys)
(if biome-api-try-parse-error-as-response
(condition-case err
(funcall callback (copy-tree query) (request-response-data response))
(error (biome-api--show-error error-thrown response err)))))))))
(defun biome-api-get-multiple (queries callback)
"Get data from Open Meteo API.
QUERIES is a list of forms as defined by `biome-query-current'. CALLBACK is
called with QUERIES and the data returned by the API as arguments."
(let (requests)
(seq-map-indexed
(lambda (query idx)
(push
(request (alist-get (alist-get :name query)
biome-api-urls nil nil #'equal)
:type "GET"
:params (biome-api--get-params query)
:parser #'json-read
:success (cl-function
(lambda (&rest)
;; I'm not sure why, but `request-response-done-p' for
;; the current request returns nil. I don't
;; know how stable this is, so...
(let ((completed-count
(cl-loop for i from 0
for request in requests
if (or (request-response-done-p request)
(= i (- (length requests) 1 idx)))
sum 1)))
(message "Completed %d/%d requests"
completed-count (length queries))
(when (eq (length queries) completed-count)
(funcall callback (copy-tree queries)
(mapcar #'request-response-data
(reverse requests)))))))
:error
(cl-function (lambda (&key error-thrown response &allow-other-keys)
(biome-api--show-error error-thrown response))))
requests))
queries)))
(provide 'biome-api)
;;; biome-api.el ends here