ACC SHELL

# !! still WORK IN PROGRESS (untill 11.1 freeze) !!
# namespace zypper

start = stream-element

stream-element =
  element stream {
    (
      # common stuff (progress, messages, prompts, status)
      progress-elements* | download-progress-elements* | message-element* | prompt-element* |

      # special stuff (updates list, installation summary, search output, info)
      update-status-element* |   # for zypper list-updates
      install-summary-element* | # for zypper install/remove/update
      repo-list-element? |       # for zypper repos
      service-list-element? |
      selectable-list-element? | # for zypper search
      selectable-info-element? | # for zypper info

      # random text can appear between tags - this text should be ignored
      text
    )+
  }

progress-elements = ( progress-element | progress-done )

progress-element =
  element progress {
    attribute id { xsd:string },
    attribute name { xsd:string },
    attribute value { xsd:integer }? # missing value means an 'is alive' notification
  }

progress-done =
  element progress {
    attribute id { xsd:string },
    attribute name { xsd:string },
    attribute done { xsd:boolean } # 0 on success, 1 on error
  }

download-progress-elements = ( download-progress-element | download-progress-done )

download-progress-element =
  element download {
    attribute url { xsd:string },
    attribute percent { xsd:integer },
    attribute rate { xsd:integer } # download rate in bytes per second
  }

download-progress-done =
  element download {
    attribute url { xsd:string },
    attribute rate { xsd:integer }, # download rate in bytes per second
    attribute done { xsd:boolean } # 0 on success, 1 on error
  }

message-element =
  element message {
    attribute type { "info" | "warning" | "error" }, # considering yet another type "result", maybe a separate <result> element 
    text
  }

prompt-element =
  element prompt {
    attribute id { xsd:integer },
    element description { text },
    element text { text },
    element option {
      attribute default { xsd:boolean }?,
      attribute value { xsd:string },
      attribute desc { xsd:string }?
    }*
  }

update-status-element =
  element update-status {
    attribute version {xsd:string},
    element update-list { ( patch-update | other-update )* }
  }

update-commons =
  attribute name { xsd:string },
  attribute edition { xsd:string },
  element summary { text },
  element description { text },
  element license { text },
  element source { # repository
    attribute url { xsd:anyURI },
    attribute alias { xsd:string }
  }

other-update =
  element update {
    update-commons,
    attribute kind { "package" | "pattern" | "product" }
  }

patch-update =
  element update {
    update-commons,
    attribute kind { "patch" },
    attribute category { xsd:string }?,   # patch category (security, recommended, ...)
    attribute pkgmanager { xsd:boolean }, # affect package management?
    attribute restart { xsd:boolean },    # needs restart of the machine?
    attribute interactive { xsd:boolean } # needs user interaction?
  }

solvable-element =
  element solvable {
    attribute type { "package" | "patch" | "pattern" | "product" },
    attribute name { xsd:string },
    attribute edition { xsd:string },      # target edition
    attribute edition-old { xsd:string }?, # currently installed version in case of upgrade
    attribute arch { xsd:string },
    attribute arch-old { xsd:string }?,    # currently installed architecture
    attribute summary { xsd:string }?,
    text?
  }

selectable-element =
  element selectable {
    solvable-element+
  }

install-summary-element =
  element install-summary {
    attribute download-size { xsd:integer },    # download size in bytes
    attribute space-usage-diff { xsd:integer }, # used space before vs. after install difference in bytes
    (
      element to-install { solvable-element+ } |
      element to-remove { solvable-element+ } |
      element to-upgrade { solvable-element+ } |
      element to-downgrade { solvable-element+ } |
      element to-upgrade-change-arch { solvable-element+ } |
      element to-downgrade-change-arch { solvable-element+ } |
      element to-reinstall { solvable-element+ } |
      element to-change-arch { solvable-element+ }
    )*
  }


repo-element =
  element repo {
    attribute alias { xsd:string },
    attribute name { xsd:string }?,
    attribute type { xsd:string }?,
    attribute enabled { xsd:boolean }?,
    attribute autorefresh { xsd:boolean }?,
    attribute gpgcheck { xsd:boolean }?,
    attribute gpgkey { xsd:anyURI }?,
    attribute mirrorlist { xsd:anyURI }?,
    element url { xsd:anyURI }+
  }

repo-list-element =
  element repo-list {
    repo-element*
  }

service-list-element =
  element service-list {
    element service {
      attribute alias { xsd:string },
      attribute name { xsd:string }?,
      attribute enabled { xsd:boolean }?,
      attribute autorefresh { xsd:boolean }?,
      attribute url { xsd:anyURI },
      attribute type { xsd:string }?,
      repo-element*
    }*,
    repo-element*
  }

selectable-list-element =
  element selectable-list {
    selectable-element*
  }

selectable-info-element =
  element selectable-info {
    common-selectable-info &
    (
      package-selectable-info |
      patch-selectable-info 
      #pattern-selectable-info |
      #product-selectable-info
    )
  }

# TODO
common-selectable-info =
  attribute installed { xsd:boolean },
  solvable-element+

# TODO
package-selectable-info =
  attribute status { "up-to-date" | "out-of-date" }

# TODO
patch-selectable-info =
  attribute status {
    "installed" | "not-installed" | "not-applicable" | "no-longer-applicable" |
    "applied" | "not-needed" | "broken" | "needed"
  }