"Script to generate /src/fennel-ls/docs/lua54.fnl and friends automatically"
(local {: sh} (require :tools.util.sh))

(fn curl-cached [url]
  (let [filename (.. "build/" (url:gsub "[/:]" "_"))
        file (io.open filename :r)]
    (if file
        file
        (do
          (sh "curl" url [">"] filename)
          (io.open filename :r)))))

(fn derive-docs-from-url [url out-filename convert]
  (let [result
        (convert
          (with-open [file (curl-cached url)]
            (file:read "*a")))]
    (with-open [file (io.open (.. "src/fennel-ls/docs/generated/" out-filename) :w)]
      (file:write ";; auto-generated by `make docs` from fennel-ls. Contents come from " url "\n"
                  result "\n"))))

(fn main []
  (sh :mkdir :-p "build/")
  (sh :mkdir :-p "src/fennel-ls/docs/generated/")
  (let [{:convert lua-manual} (require :tools.get-docs.lua-manual)
        {:convert tic-manual} (require :tools.get-docs.tic80)]
    (derive-docs-from-url "https://www.lua.org/manual/5.1/manual.html" "lua51.fnl" lua-manual)
    (derive-docs-from-url "https://www.lua.org/manual/5.2/manual.html" "lua52.fnl" lua-manual)
    (derive-docs-from-url "https://www.lua.org/manual/5.3/manual.html" "lua53.fnl" lua-manual)
    (derive-docs-from-url "https://www.lua.org/manual/5.4/manual.html" "lua54.fnl" lua-manual)
    (derive-docs-from-url "https://tic80.com/learn"                    "tic80.fnl" tic-manual)))

(main)