#!/usr/bin/env groovy

def ITEM_GROUPS = [:]
def ITEMS_CHOSEN = []
def ITEMS = [:]

pipeline {
  agent {
    node {
      label "master"
    }
  }
  environment {
    ITEM_GROUP_CHOSEN = ""
    ITEMS_COUNT = 0
  }
  stages {
    stage("select item group") {
      steps {
        script {
          def ITEM_GROUP_FILE = readFile "/tmp/item-groups.txt"
          for (LINE in ITEM_GROUP_FILE.split("\n")) {
            if (LINE!=null && LINE.length()>0 && LINE[0]!="-" && LINE[0]!="#") {
              string ITEM_NAME = LINE.split("#")[0].trim()
              string GROUP_TIEM_FILE = LINE.split("#")[1].trim()
              ITEM_GROUPS[ITEM_NAME] = GROUP_TIEM_FILE
            }
          }
          string CHOICES = ""
          for (ENTRY in ITEM_GROUPS) {
            CHOICES = CHOICES + ENTRY.key.split("=")[0] + "\n"
          }
          ITEM_GROUP_CHOSEN = input (
            id: "item-group",
            message: "item groups",
            ok: "Select",
            parameters: [
              [
                $class: "ChoiceParameterDefinition",
                name: "ItemGroup",
                choices: CHOICES,
                description: "Please choose an item group:"
              ]
            ]
          )
          echo "Selected item group: ${ITEM_GROUP_CHOSEN}"
        }
      }
    }
    stage("select items") {
      steps {
        script {
          string GROUP_TIEM_FILE = ""
          for (ENTRY in ITEM_GROUPS) {
            if (ENTRY.key.split("=")[0] == ITEM_GROUP_CHOSEN) {
              GROUP_TIEM_FILE = ENTRY.value.split("=")[0]
            }
          }
          def ITEMS_FILE = readFile "${GROUP_TIEM_FILE}"
          for (LINE in ITEMS_FILE.split("\n")) {
            if (LINE!=null && LINE.length()>0 && LINE[0]!="-" && LINE[0]!="#") {
              ITEM_NAME = LINE.split("#")[0].trim()
              ITEM_COL1    = LINE.split("#")[1].trim()
              ITEM_COL2    = LINE.split("#")[2].trim()
              ITEM_COL3    = LINE.split("#")[3].trim()
              ITEM_COL4    = LINE.split("#")[4].trim()
              ITEMS[ITEM_NAME] = [ ITEM_COL1, ITEM_COL2, ITEM_COL3, ITEM_COL4 ]
            }
          }
          def ITEMS_LIST = []
          for (ENTRY in ITEMS) {
            ITEMS_LIST.add(ENTRY.key)
          }
          ITEMS_COUNT = ITEMS.size()
          if (ITEMS_COUNT == 1) {
            DEFAULT_VALUE = true
            DESCRIPTION = "Please select the item:"
          } else {
            DEFAULT_VALUE = false
            DESCRIPTION = "Please select one or multiple items:"
          }
          def PARAMETERS = ITEMS_LIST.collect { [ $class: 'BooleanParameterDefinition', defaultValue: DEFAULT_VALUE, name: it ] }
          def ITEMS_CHOICE = input (
            id: "items",
            message: "items for ${ITEM_GROUP_CHOSEN}",
            description: DESCRIPTION,
            ok: "Select",
            parameters: PARAMETERS
          )
          if (ITEMS_COUNT == 1) {
            if (ITEMS_CHOICE == true) {
              ITEMS_CHOSEN.add(ITEMS_LIST[0])
            } else {
              //currentBuild.result = "ABORTED"
              error("No item was chosen!")
            }
          } else {
            for (ENTRY in ITEMS_CHOICE) {
              if (ENTRY.value == true) {
                string VALID = ENTRY.key.split("=")[0]
                ITEMS_CHOSEN.add(VALID)
              }
            }
            if (ITEMS_CHOSEN.size() == 0) {
              error("No item was chosen!")
            }
          }
          echo "Selected items: ${ITEMS_CHOSEN}"
        }
      }
    }
    stage("process items") {
      steps {
        script {
          if (ITEMS_CHOSEN.size() == 1) {
            CURRENT_ITEM = ITEMS_CHOSEN[0]
            input message: "Process ${CURRENT_ITEM}?", ok: "Continue"
          } else {
            def ITEMS_LOOP = [:]
            for (ITEM in ITEMS_CHOSEN) {
              def CURRENT_ITEM = "${ITEM}"
              ITEMS_LOOP["${CURRENT_ITEM}"] = {
                stage("${CURRENT_ITEM}") {
                  input message: "Process ${CURRENT_ITEM}?", ok: "Continue"
                }
              }
            }
            parallel ITEMS_LOOP
          }
        }
      }
    }
  }
}