From 2072903670c0fe57a22fdc0c6cb12eda5c6b52c7 Mon Sep 17 00:00:00 2001
From: maxonfjvipon <mtrunnikov@gmail.com>
Date: Wed, 17 Jan 2024 00:52:15 +0300
Subject: [PATCH] fix(#2778): pretty phi

---
 .../resources/org/eolang/maven/phi/to-phi.xsl | 75 +++++++++++++++----
 .../java/org/eolang/maven/PhiMojoTest.java    | 23 ++++--
 2 files changed, 77 insertions(+), 21 deletions(-)

diff --git a/eo-maven-plugin/src/main/resources/org/eolang/maven/phi/to-phi.xsl b/eo-maven-plugin/src/main/resources/org/eolang/maven/phi/to-phi.xsl
index 725eb9b7e9..0ba752cb3a 100644
--- a/eo-maven-plugin/src/main/resources/org/eolang/maven/phi/to-phi.xsl
+++ b/eo-maven-plugin/src/main/resources/org/eolang/maven/phi/to-phi.xsl
@@ -22,7 +22,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 -->
-<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:eo="https://www.eolang.org" id="to-phi" version="2.0">
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:eo="https://www.eolang.org" xmlns:xs="http://www.w3.org/2001/XMLSchema" id="to-phi" version="2.0">
   <xsl:output encoding="UTF-8" method="text"/>
   <xsl:import href="/org/eolang/parser/_datas.xsl"/>
   <!-- Variables -->
@@ -74,6 +74,7 @@ SOFTWARE.
     <select>∅</select>
   </xsl:variable>
   <!-- Functions -->
+  <!-- ADD XI OR NOT -->
   <xsl:function name="eo:add-xi">
     <xsl:param name="add"/>
     <xsl:if test="$add">
@@ -81,6 +82,7 @@ SOFTWARE.
       <xsl:text>.</xsl:text>
     </xsl:if>
   </xsl:function>
+  <!-- SPECIAL CHARACTERS -->
   <xsl:function name="eo:specials">
     <xsl:param name="n"/>
     <xsl:param name="is-name"/>
@@ -139,6 +141,7 @@ SOFTWARE.
       </xsl:otherwise>
     </xsl:choose>
   </xsl:function>
+  <!-- TOKENIZE BYTES -->
   <xsl:function name="eo:bytes">
     <xsl:param name="bts"/>
     <xsl:choose>
@@ -159,46 +162,71 @@ SOFTWARE.
       </xsl:otherwise>
     </xsl:choose>
   </xsl:function>
+  <!-- COMMA WITH SPACE -->
   <xsl:function name="eo:comma">
     <xsl:param name="pos"/>
+    <xsl:param name="tabs"/>
     <xsl:if test="$pos&gt;1">
-      <xsl:text>, </xsl:text>
+      <xsl:text>,</xsl:text>
+      <xsl:value-of select="eo:eol($tabs)"/>
     </xsl:if>
   </xsl:function>
+  <!-- EOL WITH INDENTATION -->
+  <xsl:function name="eo:eol">
+    <xsl:param name="tabs"/>
+    <xsl:value-of select="'&#10;'"/>
+    <xsl:for-each select="1 to $tabs">
+      <xsl:text>  </xsl:text>
+    </xsl:for-each>
+  </xsl:function>
   <!-- Program -->
   <xsl:template match="program">
     <phi>
       <xsl:text>{</xsl:text>
+      <xsl:variable name="tabs" select="1"/>
+      <xsl:value-of select="eo:eol($tabs)"/>
       <xsl:variable name="has-package" select="metas/meta/head[text()='package']"/>
-      <xsl:variable name="parts" select="tokenize(metas/meta[head[text()='package']]/tail[1], '\.')"/>
+      <xsl:variable name="package" select="metas/meta[head[text()='package']]/tail[1]"/>
+      <xsl:variable name="parts" select="tokenize($package,'\.')"/>
+      <xsl:variable name="length" select="string-length($package)-string-length(replace($package,'\.',''))"/>
       <xsl:choose>
         <xsl:when test="$has-package">
           <xsl:for-each select="$parts">
             <xsl:value-of select="."/>
             <xsl:value-of select="$arrow"/>
             <xsl:value-of select="$lb"/>
+            <xsl:value-of select="eo:eol($tabs+position())"/>
           </xsl:for-each>
-          <xsl:apply-templates select="objects"/>
+          <xsl:apply-templates select="objects">
+            <xsl:with-param name="tabs" select="$tabs + $length + 1"/>
+          </xsl:apply-templates>
           <xsl:for-each select="$parts">
-            <xsl:value-of select="eo:comma(2)"/>
+            <xsl:value-of select="eo:comma(2, $tabs + $length + 2 - position())"/>
             <xsl:value-of select="$lambda"/>
             <xsl:value-of select="$dashed-arrow"/>
             <xsl:text>Package</xsl:text>
+            <xsl:value-of select="eo:eol($tabs + $length + 1 - position())"/>
             <xsl:value-of select="$rb"/>
           </xsl:for-each>
         </xsl:when>
         <xsl:otherwise>
-          <xsl:apply-templates select="objects"/>
+          <xsl:apply-templates select="objects">
+            <xsl:with-param name="tabs" select="$tabs"/>
+          </xsl:apply-templates>
         </xsl:otherwise>
       </xsl:choose>
+      <xsl:value-of select="eo:eol(0)"/>
       <xsl:text>}</xsl:text>
     </phi>
   </xsl:template>
   <!-- Objects  -->
   <xsl:template match="objects">
+    <xsl:param name="tabs"/>
     <xsl:for-each select="o">
-      <xsl:value-of select="eo:comma(position())"/>
-      <xsl:apply-templates select="."/>
+      <xsl:value-of select="eo:comma(position(), $tabs)"/>
+      <xsl:apply-templates select=".">
+        <xsl:with-param name="tabs" select="$tabs"/>
+      </xsl:apply-templates>
     </xsl:for-each>
   </xsl:template>
   <!-- Free attribute -->
@@ -233,6 +261,7 @@ SOFTWARE.
   </xsl:template>
   <!-- Just object -->
   <xsl:template match="o[@base]">
+    <xsl:param name="tabs"/>
     <xsl:if test="@name">
       <xsl:value-of select="eo:specials(@name, true())"/>
       <xsl:value-of select="$arrow"/>
@@ -254,25 +283,33 @@ SOFTWARE.
         </xsl:choose>
         <xsl:if test="count(o)&gt;0">
           <xsl:text>(</xsl:text>
+          <xsl:value-of select="eo:eol($tabs+1)"/>
           <xsl:for-each select="o">
             <xsl:apply-templates select="." mode="application">
               <xsl:with-param name="position" select="position()"/>
+              <xsl:with-param name="tabs" select="$tabs+1"/>
             </xsl:apply-templates>
           </xsl:for-each>
+          <xsl:value-of select="eo:eol($tabs)"/>
           <xsl:text>)</xsl:text>
         </xsl:if>
       </xsl:when>
       <!-- Method -->
       <xsl:otherwise>
-        <xsl:apply-templates select="o[position()=1]"/>
+        <xsl:apply-templates select="o[position()=1]">
+          <xsl:with-param name="tabs" select="$tabs"/>
+        </xsl:apply-templates>
         <xsl:value-of select="eo:specials(@base, true())"/>
         <xsl:if test="count(o)&gt;1">
           <xsl:text>(</xsl:text>
+          <xsl:value-of select="eo:eol($tabs+1)"/>
           <xsl:for-each select="o[position()!=1]">
             <xsl:apply-templates select="." mode="application">
               <xsl:with-param name="position" select="position()"/>
+              <xsl:with-param name="tabs" select="$tabs+1"/>
             </xsl:apply-templates>
           </xsl:for-each>
+          <xsl:value-of select="eo:eol($tabs)"/>
           <xsl:text>)</xsl:text>
         </xsl:if>
       </xsl:otherwise>
@@ -286,37 +323,45 @@ SOFTWARE.
         </xsl:message>
       </xsl:if>
       <xsl:text>(</xsl:text>
+      <xsl:value-of select="eo:eol($tabs+1)"/>
       <xsl:value-of select="$delta"/>
       <xsl:value-of select="$dashed-arrow"/>
       <xsl:value-of select="eo:bytes(.)"/>
+      <xsl:value-of select="eo:eol($tabs)"/>
       <xsl:text>)</xsl:text>
     </xsl:if>
   </xsl:template>
   <!-- Formation -->
   <xsl:template match="o[not(@base) and (@abstract or @atom)]">
+    <xsl:param name="tabs"/>
     <xsl:if test="@name">
       <xsl:value-of select="eo:specials(@name, true())"/>
       <xsl:value-of select="$arrow"/>
     </xsl:if>
     <xsl:value-of select="$lb"/>
+    <xsl:value-of select="eo:eol($tabs+1)"/>
     <xsl:if test="@atom">
       <xsl:value-of select="$lambda"/>
       <xsl:value-of select="$dashed-arrow"/>
       <xsl:text>Lambda</xsl:text>
       <xsl:if test="count(o)&gt;0">
-        <xsl:text>, </xsl:text>
+        <xsl:value-of select="eo:comma(2, $tabs+1)"/>
       </xsl:if>
     </xsl:if>
     <xsl:for-each select="o">
-      <xsl:value-of select="eo:comma(position())"/>
-      <xsl:apply-templates select="."/>
+      <xsl:value-of select="eo:comma(position(), $tabs+1)"/>
+      <xsl:apply-templates select=".">
+        <xsl:with-param name="tabs" select="$tabs+1"/>
+      </xsl:apply-templates>
     </xsl:for-each>
+    <xsl:value-of select="eo:eol($tabs)"/>
     <xsl:value-of select="$rb"/>
   </xsl:template>
   <!-- Application -->
   <xsl:template match="o" mode="application">
+    <xsl:param name="tabs"/>
     <xsl:param name="position" select="1"/>
-    <xsl:value-of select="eo:comma($position)"/>
+    <xsl:value-of select="eo:comma($position, $tabs)"/>
     <xsl:choose>
       <xsl:when test="@as">
         <xsl:if test="matches(@as,'^[0-9][1-9]*$')">
@@ -330,7 +375,9 @@ SOFTWARE.
       </xsl:otherwise>
     </xsl:choose>
     <xsl:value-of select="$arrow"/>
-    <xsl:apply-templates select="."/>
+    <xsl:apply-templates select=".">
+      <xsl:with-param name="tabs" select="$tabs"/>
+    </xsl:apply-templates>
   </xsl:template>
   <!-- Ignore other elements -->
   <xsl:template match="node()|@*">
diff --git a/eo-maven-plugin/src/test/java/org/eolang/maven/PhiMojoTest.java b/eo-maven-plugin/src/test/java/org/eolang/maven/PhiMojoTest.java
index a70f214e56..437c877f93 100644
--- a/eo-maven-plugin/src/test/java/org/eolang/maven/PhiMojoTest.java
+++ b/eo-maven-plugin/src/test/java/org/eolang/maven/PhiMojoTest.java
@@ -64,18 +64,27 @@ void createsFiles(@TempDir final Path temp) throws Exception {
     @ClasspathSource(value = "org/eolang/maven/phi", glob = "**.yaml")
     void checksPhiPacks(final String pack, @TempDir final Path temp) throws Exception {
         final Map<String, Object> map = new Yaml().load(pack);
+        String phi = new TextOf(
+            new FakeMaven(temp)
+                .withProgram(map.get("eo").toString())
+                .execute(new FakeMaven.Phi())
+                .result()
+                .get("target/phi/foo/x/main.phi")
+        ).asString();
+        System.out.println(phi);
         MatcherAssert.assertThat(
             String.format(
                 "Result phi expression should be equal to %s, but it doesn't",
                 map.get("phi").toString()
             ),
-            new TextOf(
-                new FakeMaven(temp)
-                    .withProgram(map.get("eo").toString())
-                    .execute(new FakeMaven.Phi())
-                    .result()
-                    .get("target/phi/foo/x/main.phi")
-            ).asString(),
+            phi,
+//            new TextOf(
+//                new FakeMaven(temp)
+//                    .withProgram(map.get("eo").toString())
+//                    .execute(new FakeMaven.Phi())
+//                    .result()
+//                    .get("target/phi/foo/x/main.phi")
+//            ).asString(),
             Matchers.equalTo(map.get("phi").toString())
         );
     }