[
    {
        "define_password": {
          "call": "file.read",
          "args": {
            "input_path": "examples/password.json",
            "read_as": "json"
          },
          "result": "password_storage"
        }
      },
      {
        "define_var": {
            "call": "file.read",
            "args": {
                "input_path": "examples/workflow3/contacts.csv",
                "read_as": "csv"
            },
            "result": "array_var"
        }
    },
    {
        "define": {
            "assign": [
                {
                    "array": "${array_var.name}"
                },
                {
                    "i": 0
                },
                {
                    "name": "${array[i]}"
                },
                {
                    "emails": "${array_var.email}"
                },
                {
                    "email": "${emails[i]}"
                },
                {
                    "attachments": "${array_var.attachment}"
                }
            ]
        }
    },
    {
        "check_condition": {
            "switch": [
                {
                "condition": "${len(array) > i}",
                "next": "iterate"
                }
            ],
            "next": "exit_loop"
        }
    },
    {
        "iterate": {
            "assign": [
                {
                    "name": "${array[i]}"
                },
                {
                    "email": "${emails[i]}"
                },
                {
                    "attachment": "${attachments[i]}"
                },
                {
                    "i": "${i+1}"
                }
            ],
            "next": "write_message"
        }
    },
    {
        "write_message": {
            "call": "template.render",
            "args": {
                "template_path": "examples/workflow3/message.tmpl",
                "output_path": "${\"output/workflow3/message\" + string(i) + \".out\"}"
            },
            "result": "rendered_content",
            "next": "write_html"
        }
    },
    {
        "write_html": {
            "call": "template.render",
            "args": {
                "template_path": "examples/workflow3/message.html.tmpl",
                "output_path": "${\"output/workflow3/message\" + string(i) + \".html\"}"
            },
            "result": "rendered_html",
            "next": "send_email"
        }
    },
    {
        "send_email": {
          "call": "mailer.send",
          "args": {
              "adapter": "SMTP",
              "relay": "smtp.gmail.com",
              "username": "wfreceiver",
              "password": "${password_storage.gmail}",
              "port": 587,
              "ssl": false,
              "tls": "always",
              "subject": "${\"This is a test message for \" + name}",
              "from": "wfreceiver@gmail.com",
              "to": "${email}",
              "text": "${rendered_content}",
              "html": "${rendered_html}",
              "attachments": [
                  "${attachment}"
              ]
          },
          "next": "check_condition"
        }
    },
    {
        "exit_loop": {
            "return": {
                "last_index": "${i}"
            }
        }
    }
]