{{- /* SFCraft 合成配方组件

     两种用法:
     1) 九格直填: a1..c3 为 3x3 合成格, out 为输出格
     2) pattern 别名模式(提供 pattern 时优先):
        pattern="a a a\nb b b\nc c c"  行间用 \n(必须写在一行内), 也可用空格或 ; 分隔, 共 9 个 token
        a="diamond" b="stick" c=""     每个 token 对应一个同名参数, 值为物品 id
        token 也可以直接写物品 id, 如 pattern="diamond stick ."
        "." 表示空格子

     - 值为物品 id, 留空表示空格子; 名称后可加 ":数量" 显示堆叠数, 例如 a1="stick:2"
     - 贴图由 partials/sfcraft/item-texture.html 自动解析并缓存, 无需手工准备
     - caption 参数可选, 显示在组件下方
*/ -}}

{{- $table := resources.Get "table.png" -}}
{{- $slots := slice
      (dict "key" "a1" "cls" "grid" "x" "13.75%"  "y" "20%")
      (dict "key" "a2" "cls" "grid" "x" "25%"     "y" "20%")
      (dict "key" "a3" "cls" "grid" "x" "36.25%"  "y" "20%")
      (dict "key" "b1" "cls" "grid" "x" "13.75%"  "y" "42.5%")
      (dict "key" "b2" "cls" "grid" "x" "25%"     "y" "42.5%")
      (dict "key" "b3" "cls" "grid" "x" "36.25%"  "y" "42.5%")
      (dict "key" "c1" "cls" "grid" "x" "13.75%"  "y" "65%")
      (dict "key" "c2" "cls" "grid" "x" "25%"     "y" "65%")
      (dict "key" "c3" "cls" "grid" "x" "36.25%"  "y" "65%")
      (dict "key" "out" "cls" "out" "x" "70%"     "y" "37.5%")
-}}

{{- $ctx := . -}}
{{- $pattern := $ctx.Get "pattern" -}}
{{- $tokens := slice -}}
{{- if $pattern -}}
  {{- $flat := replace (replace (replace (replace $pattern "\\n" " ") ";" " ") "\n" " ") "\r" " " -}}
  {{- range split (trim $flat " ") " " -}}
    {{- if ne . "" -}}{{- $tokens = $tokens | append . -}}{{- end -}}
  {{- end -}}
{{- end -}}

{{- /* 每页只输出一次样式 */ -}}
{{- if not (.Page.Store.Get "sfc_crafting_css") -}}
  {{- .Page.Store.Set "sfc_crafting_css" true -}}
  {{- with resources.Get "css/sfcraft-crafting.css" -}}
    <style>{{ (. | minify).Content | safeCSS }}</style>
  {{- end -}}
{{- end -}}

{{- if and $pattern (ne (len $tokens) 9) -}}
  <div class="sfc-error">
    crafting 的 pattern 需要恰好 9 个 token（3 行 × 3 列），当前是 {{ len $tokens }} 个。
    请检查 pattern="a a a\nb b b\nc c c" 的写法。
  </div>
{{- else -}}
  <figure class="sfc-crafting" style="background-image: url('{{ $table.RelPermalink }}');">
    {{- range $i, $slot := $slots -}}
      {{- $val := "" -}}
      {{- if eq $slot.key "out" -}}
        {{- $val = trim ($ctx.Get "out") " " -}}
      {{- else if $pattern -}}
        {{- $token := "" -}}
        {{- if lt $i (len $tokens) -}}{{- $token = index $tokens $i -}}{{- end -}}
        {{- if and (ne $token "") (ne $token ".") -}}
          {{- $v := trim ($ctx.Get $token) " " -}}
          {{- if eq $v "" -}}
            {{- if findRE "^[a-z0-9_]+$" $token -}}{{- $v = $token -}}{{- end -}}
          {{- end -}}
          {{- $val = $v -}}
        {{- end -}}
      {{- else -}}
        {{- $val = trim ($ctx.Get $slot.key) " " -}}
      {{- end -}}
      {{- /* "." 表示空格子, 无论它写在 pattern 里还是写成别名的值 */ -}}
      {{- if eq $val "." -}}{{- $val = "" -}}{{- end -}}
      {{- partial "sfcraft/crafting-slot.html"
          (dict
            "val"  $val
            "cls"  $slot.cls
            "x"    $slot.x
            "y"    $slot.y
            "page" $ctx.Page
          ) -}}
    {{- end -}}
    {{- with $ctx.Get "caption" -}}
      <figcaption class="sfc-caption">{{ . }}</figcaption>
    {{- end -}}
  </figure>
{{- end -}}