#! /bin/bash

gitlab_wiki() (
   is() {
      gitlab _is_gitlab "$@" && gitlab _is_wiki "$@"
   }

	human_url() {
		log "not impl: human url: $@"
		exit 1
	}

	_host() {
		local id="$1"
		local host="${id%%.net*}.net"
		echo "$host"
	}

	_project() {
		local id="$1"
		local host="$(_host "$@")"
		local path="${id#$host}"
		local project="${path%%/wikis*}"
		project="${project%/-}"
		project="${project%/-/}"
		project="${project#/}"
		project="${project%/}"
		echo "$project"
	}

	_blob() {
		local id="$1"
		local host="$(_host "$@")"
		local project="$(_project "$@")"
		local path="${id#$host}"
		local blob="${path#*/wikis}"
		blob="${blob#/}"
		blob="${blob%/}"
		echo "$blob"
	}

   get() {
		local base="$1"
		local host="$(_host "$base")"
		local project="$(_project "$base")"
		local blob="$(_blob "$base")"
		if [ "$(echo "$2" | base64 --decode)" != "" ]; then
			blob="$blob/$(echo "$2" | base64 --decode)"
		fi
		log project=$project
		log "$host/api/v4/projects/$(urlencode "$project")/wikis/$(urlencode "$blob")"
		gitlab \
			_gcurl \
				"$host/api/v4/projects/$(urlencode "$project")/wikis/$(urlencode "$blob")" \
		| jq -r .content
   }

   expand() {
      local cache_key="gitlab_wiki expand $*"
      if cache get "$cache_key"; then
         return 0
      fi
      _expand "$@" | sort | cache put "$cache_key"
   }

   _expand() {
		local host="$(_host "$1")"
		local project="$(_project "$1")"
		local blob="$(_blob "$1")"
		if [ -n "$blob" ] && [ "$blob" != "" ]; then
			echo "" | base64
			return
		fi
		log host=$host, project=$project, blob=$blob
		gitlab \
			_gcurl \
				"$host/api/v4/projects/$(urlencode "$project")/wikis?with_content=0" \
		| jq -r .[].slug \
		| while read -r line; do
			echo "$line" | base64
		done
   }

   "$@"
)