#!/usr/bin/env min

"_helpers" require :helpers 'helpers import

"next-release.md" fs.read xml.escape :release-body
"tasks/data/draft-release.json" fs.read :draft-release-template 

config "version" dict.get :min-version
env "github-token" dict.get :token
draft-release-template ("version" min-version "body" release-body) =% :draft-release-body

{}  
  "application/vnd.github.v3+json" "Accept" dict.set
  "token $#" (token) =% "Authorization" dict.set  
:headers

(
  symbol handle-errors
  (dict :response ==>)
  (
    response to-json "response.json" fs.write
    response "status" dict.get :status
    (status 300 >) (
      response "body" dict.get from-json :body
      body "message" dict.get :message
      status string @status
      "Error $#: $#" (status message) =% io.error status int exit
    ) when
  )
) ::
;; Handles HTTP errors.

(
  symbol gh-req
  (dict :data ==> dict|quot :result)
  (
    data "endpoint" dict.get :endpoint
    "api" :subdomain
    (data 'subdomain dict.has?) (data "subdomain" dict.get @subdomain) when
    "https://$#.github.com/repos/h3rald/min$#" (subdomain endpoint) =% :url
    {}
      url "url" dict.set
      data "method" dict.get "method" dict.set
      (data 'headers dict.has?) 
        (data "headers" dict.get "headers" dict.set) 
        (headers "headers" dict.set) 
      if
      (data 'body dict.has?) (data "body" dict.get "body" dict.set) when
    http.request :response
    response "status" dict.get :status
    response "body" dict.get :body
    response handle-errors 
    (body length 0 >) (body from-json) ({}) if
    @result
  )
) ::
;; Execute a request using the Github API.

(
  symbol get-assets
  (dict :data ==> quot :result)
  (
    data "id" dict.get :id
    {}
      "/releases/$#/assets" (id) =% "endpoint" dict.set
      "GET" "method" dict.set
    gh-req @result
  )
) ::
;; Retrieve the assets from an existing Github release.

(
  symbol delete-assets
  (dict :config ==>)
  (
    config get-assets :assets
    config "id" dict.get :id
    assets ("id" dict.get) map :assets-ids
    assets-ids (
      :asset
      {}
        "/releases/assets/$#" (asset) =% "endpoint" dict.set
        "DELETE" "method" dict.set
      gh-req stack.pop
    ) foreach
  )
) ::
;; Delete all assets from an existing Github release.

#|| Tasks ||#

(
  symbol draft
  (==>)
  (
    {}
    "/releases" "endpoint" dict.set
    "POST" "method" dict.set
    draft-release-body "body" dict.set
    gh-req "id" dict.get string :id
    ;; Save Release ID to min.yml
    config id "id" dict.set to-yaml "min.yml" fs.write
    "Draft release v$# ($#) created successfully" (min-version id) =% io.notice!
  )
) ::
;; Creates a new draft release on Github.

(
  symbol update
  (==>)
  (
    config "id" dict.get :id
  {}
    "/releases/$#" (id) =% "endpoint" dict.set
    "PATCH" "method" dict.set
    draft-release-body "body" dict.set
  gh-req "id" dict.get string :id
  "Draft release v$# ($#) updated successfully" (min-version id) =% io.notice!
  )
) ::
;; Updates the text of the current draft Github release.

(
  symbol assets
  (==>)
  (
    config get-assets =assets 
    assets size :total
    "are" :verb
    (total 1 ==) ("is" @verb) when
    "There $# $# assets in release v$#" (verb total min-version) =% io.notice!
    assets ("name" dict.get () stack.cons "- $#" stack.swap % io.notice!) foreach 
  )
) ::
;; Retrieve a list of all the assets of the current draft Github release.

(
  symbol upload
  (==>)
  (
    config "id" dict.get :id
    config delete-assets
    sys.pwd sys.ls ("\\.zip$" match?) filter 
    (
      fs.filename :file
      "Uploading: $#" (file) =% io.notice!
      file fs.read :body
      headers "application/zip" "Content-Type" dict.set :asset-headers
      {}
        "/releases/$#/assets?name=$#" (id file) =% "endpoint" dict.set
        asset-headers "headers" dict.set
        "uploads" "subdomain" dict.set
        "POST" "method" dict.set
        body "body" dict.set
      gh-req stack.pop
    ) foreach 
  )
) ::
;; Uploads all assets to the current draft Github release, deleting any existing asset.