WIP conditions

index.js

@@ -6,8 +6,21 @@ exports.printVersion = () => {
 exports.compile = (template, input) => {
   let index = 0
 
+  const getValue = (tagContent) => {
+  console.log('input', tagContent)
+    let tagContentSplit = tagContent.split('.')
+    let varLevel = null
+    tagContentSplit.forEach( (level) => {
+      const isIndex = Number.isInteger(parseInt(level))
+      if(!varLevel) varLevel = input
+      varLevel = isIndex ? varLevel[parseInt(level)] : varLevel[level]
+    })
+    return typeof varLevel === 'string' ? varLevel.trim() : varLevel
+  }
+
   while(index < template.length) {
     const nextOpen = template.indexOf('{{', index+1)
+
     if(nextOpen == index || nextOpen == -1) {
       index = template.length
     } else {
@@ -17,16 +30,39 @@ exports.compile = (template, input) => {
         index = template.length
       } else {
         index = nextOpen+2
-        const tagContent = template.substring(nextOpen+2, nextClose)
-        const tagContentSplit = tagContent.split('.')
-        let varLevel = input
-        tagContentSplit.forEach( (level) => {
-          const isIndex = Number.isInteger(parseInt(level))
-          varLevel = isIndex ? varLevel[parseInt(level)] : varLevel[level]
-        })
-        template = template.replace(tagContent, varLevel)
+        let tagContent = template.substring(nextOpen+2, nextClose)
+
+        if(tagContent.substring(0,1) == '#') {
+          const isIf = tagContent.substring(0,3) == '#if'
+          const isUnless = tagContent.substring(0,7) == '#unless'
+
+          console.log('tagContent.substring(0,3)',tagContent.substring(0,3),index)
+          if(isIf) {
+            const conditionStart = template.indexOf('}}', index+1)
+            const conditionStop = template.indexOf('{{/if}}', conditionStart+1)
+            const conditionContent = template.substring(conditionStart+2, conditionStop)
+            const conditionFull = template.substring(index-2, conditionStop+7)
+            const value = getValue(tagContent.substring(4)) ? conditionContent : ''
+            template = template.replace(conditionFull, value)
+            console.log('conditionFull',conditionFull, `-${value}-`, `-${tagContent.substring(4)}-`, conditionContent)
+            index += value.length
+          } else if(isUnless) {
+            const conditionStart = template.indexOf('}}', index+1)
+            const conditionStop = template.indexOf('{{/unless}}', conditionStart+1)
+            const conditionContent = template.substring(conditionStart+2, conditionStop)
+            const conditionFull = template.substring(index-2, conditionStop+11)
+            const value = !getValue(tagContent.substring(8)) ? conditionContent : ''
+            template = template.replace(conditionFull, value)
+            index += value.length
+          }
+          console.log('index', index)
+        } else {
+          const value = getValue(tagContent)
+          template = template.replace(`{{${tagContent}}}`, value)
+          //index += value.length+1
+        }
       }
     }
   }
-  console.log(template)
+  return template
 }