/// url = 'https://fhir.slade360.co.ke/fhir/StructureMap/ExtractPlatesAndScrews'
/// name = 'ExtractPlatesAndScrews'
/// title = 'Plates and Screws Extraction'
/// status = 'active'
/// description = 'One DeviceUsage per implant actually used, and only where the count is above zero -- forty DeviceUsage resources of quantity nil would be worse than none at all. What went into a patient is the question an implant recall asks, and a tally sheet in a theatre file cannot answer it. The implant type carries the printed line as its text: the hospital\'s implant stock is not coded and a guessed SNOMED device code on an orthopaedic implant is worse than the words on the paper.'

uses "http://hl7.org/fhir/StructureDefinition/QuestionnaireResponse" alias QR as source
uses "http://hl7.org/fhir/StructureDefinition/Bundle" alias Bundle as target
uses "http://hl7.org/fhir/StructureDefinition/DeviceUsage" alias DeviceUsage as target

group ExtractPlatesAndScrews(source qr : QR, target bundle : Bundle) {
  qr -> bundle.type = 'transaction' "setBundleType";
  qr.item as g where (linkId = 'implants') then {
    g.item as it where ((linkId = 'implants/cortical-screw-45') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Cortical screw ø4.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_cortical_screw_45";
    g.item as it where ((linkId = 'implants/cancellous-screw-65') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Cancellous screw ø6.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_cancellous_screw_65";
    g.item as it where ((linkId = 'implants/malleolar-screw') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Malleolar screw' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_malleolar_screw";
    g.item as it where ((linkId = 'implants/washer') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Washer' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_washer";
    g.item as it where ((linkId = 'implants/locking-screw-49') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Locking screw ø4.9 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_locking_screw_49";
    g.item as it where ((linkId = 'implants/pfn-bolt') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'PFN bolt ø8.0 / 6.2' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_pfn_bolt";
    g.item as it where ((linkId = 'implants/firm-lock-screw-cortical-50') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Firm-lock screw cortical ø5.0 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_firm_lock_screw_cortical_50";
    g.item as it where ((linkId = 'implants/firm-lock-screw-cancellous-50') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Firm-lock screw cancellous ø5.0 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_firm_lock_screw_cancellous_50";
    g.item as it where ((linkId = 'implants/proximal-femur-locking-screw-65') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Proximal femur locking screw ø6.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_proximal_femur_locking_screw_65";
    g.item as it where ((linkId = 'implants/proximal-femur-locking-bolt-80') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Proximal femur locking bolt ø8.0 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_proximal_femur_locking_bolt_80";
    g.item as it where ((linkId = 'implants/proximal-femur-locking-bolt-62') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Proximal femur locking bolt ø6.2 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_proximal_femur_locking_bolt_62";
    g.item as it where ((linkId = 'implants/cortical-screw-35') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Cortical screw ø3.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_cortical_screw_35";
    g.item as it where ((linkId = 'implants/cancellous-screw-40') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Cancellous screw ø4.0 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_cancellous_screw_40";
    g.item as it where ((linkId = 'implants/cannulated-screw') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Cannulated screw' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_cannulated_screw";
    g.item as it where ((linkId = 'implants/recon-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Recon plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_recon_plate";
    g.item as it where ((linkId = 'implants/one-third-tubular-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'One-third tubular plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_one_third_tubular_plate";
    g.item as it where ((linkId = 'implants/semi-tubular-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Semi-tubular plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_semi_tubular_plate";
    g.item as it where ((linkId = 'implants/broad-dcp-plate-45') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Broad DCP plate ø4.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_broad_dcp_plate_45";
    g.item as it where ((linkId = 'implants/narrow-dcp-plate-45') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Narrow DCP plate ø4.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_narrow_dcp_plate_45";
    g.item as it where ((linkId = 'implants/small-dcp-plate-45') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Small DCP plate ø4.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_small_dcp_plate_45";
    g.item as it where ((linkId = 'implants/t-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'T-plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_t_plate";
    g.item as it where ((linkId = 'implants/small-t-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Small T-plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_small_t_plate";
    g.item as it where ((linkId = 'implants/dhs-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'DHS plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_dhs_plate";
    g.item as it where ((linkId = 'implants/dhs-screw') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'DHS screw' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_dhs_screw";
    g.item as it where ((linkId = 'implants/proximal-femur-locking-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Proximal femur locking plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_proximal_femur_locking_plate";
    g.item as it where ((linkId = 'implants/distal-femur-locking-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Distal femur locking plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_distal_femur_locking_plate";
    g.item as it where ((linkId = 'implants/proximal-tibia-locking-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Proximal tibia locking plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_proximal_tibia_locking_plate";
    g.item as it where ((linkId = 'implants/distal-tibia-locking-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Distal tibia locking plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_distal_tibia_locking_plate";
    g.item as it where ((linkId = 'implants/condylar-plate-95') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Condylar plate 95 degrees' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_condylar_plate_95";
    g.item as it where ((linkId = 'implants/l-buttress-plate') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'L-buttress plate' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_l_buttress_plate";
    g.item as it where ((linkId = 'implants/interlocking-nail-femur') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Interlocking nail, femur' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_interlocking_nail_femur";
    g.item as it where ((linkId = 'implants/interlocking-nail-tibia') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Interlocking nail, tibia' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_interlocking_nail_tibia";
    g.item as it where ((linkId = 'implants/proximal-femur-nail') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Proximal femur nail' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_proximal_femur_nail";
    g.item as it where ((linkId = 'implants/austin-moore-hip-prosthesis') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Austin Moore hip prosthesis' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_austin_moore_hip_prosthesis";
    g.item as it where ((linkId = 'implants/kuntscher-nail') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Kuntscher nail' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_kuntscher_nail";
    g.item as it where ((linkId = 'implants/kirschner-wire') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Kirschner wire' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_kirschner_wire";
    g.item as it where ((linkId = 'implants/cerclage-wire') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Cerclage wire' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_cerclage_wire";
    g.item as it where ((linkId = 'implants/firm-lock-screw-cortical-50-b') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Firm-lock screw o5.0 cortical' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_firm_lock_screw_cortical_50_b";
    g.item as it where ((linkId = 'implants/firm-lock-screw-cancellous-65') and answer.value.exists() and (answer.value > 0)) ->  bundle.entry as entry,  entry.resource = create('DeviceUsage') as du then {
      qr ->  du,  entry then BuildDeviceUsageBase(qr, du, entry) "base";
      it -> du.status = 'completed' "status";
      it ->  du.device = create('CodeableReference') as dr,  dr.concept as dc then {
        it -> dc.text = 'Firm-lock screw cancellous ø6.5 mm' "deviceText";
      } "device";
      it.answer first as a then {
        a.value as n ->  du.note as note,  note.text = 'Count of this implant used, as tallied on the plates and screws sheet' "countNote";
      };
      qr -> du then SetImplantContext(qr, du) "context";
    } "implant_firm_lock_screw_cancellous_65";
  } "implantGroup";
}

// When and by whom, on every implant recorded. The operation date overrides the
// response's authored time: an implant log written up the next morning is still
// a log of yesterday's operation, and a recall traces by date.
group SetImplantContext(source qr : QR, target du : DeviceUsage) {
  qr.encounter as e -> du.context = e "context";
  qr.item as g where (linkId = 'operation') then {
    g.item as it where ((linkId = 'operation/date') and answer.value.exists()) then {
      it.answer first as a then {
        a.value as v -> du.timing = cast(v, 'dateTime') "timing";
      };
    } "dateRule";
    g.item as it where ((linkId = 'operation/procedure') and answer.value.exists()) then {
      it.answer first as a then {
        a.value as txt ->  du.reason as rsn,  rsn.concept as rc,  rc.text = txt "reasonText";
      };
    } "procedureRule";
    g.item as it where ((linkId = 'operation/ward') and answer.value.exists()) then {
      it.answer first as a then {
        a.value as txt ->  du.note as n,  n.text = txt "wardNote";
      };
    } "wardRule";
  } "operationGroup";
  qr.item as it where ((linkId = 'signed-by') and answer.value.exists()) then {
    it.answer first as a then {
      a.value as ref -> du.informationSource = ref "informationSource";
    };
  } "signedByRule";
}

// ─────────────────────────────────────────────────────────────────────────────
// Shared scaffolding. Repeated in each map rather than imported: the transform
// engine resolves `imports` against whatever StructureMaps happen to be on the
// server, and a form that stops extracting because a shared map was not
// uploaded is a worse failure than a duplicated group.
// Two notes on what the publisher's StructureMap validator says about this file.
// Source parameters below are left untyped on purpose. Writing `: Element` makes
// the validator compare QuestionnaireResponse.item against the literal 'Element'
// and report them as incompatible with each other, which is noise, not a finding.
// `evaluate(context, expression)` is flagged as "takes 1 parameter but 2 were
// found". Leave it. The FML parser in the same jar refuses the one-argument form
// outright -- it wants a parameter, a comma, then the FHIRPath -- so the
// publisher is objecting to what its own compiler emits. Two arguments is the
// only form that compiles, and it is what the R5 transform engine executes.
// ─────────────────────────────────────────────────────────────────────────────
group BuildObsBase(source qr : QR, target obs : Observation, target entry) {
  qr -> obs then SetResponseProvenance(qr, obs) "responseProvenance";
  qr -> obs.id = uuid() then SetObservationFullUrl(obs, entry) "idAndFullUrl";
  qr -> entry.request as request then {
    qr -> request.method = 'POST' "requestMethod";
    qr -> request.url = 'Observation' "requestUrl";
  } "entryRequest";
  qr -> obs.status = 'final' "status";
  qr.subject as s -> obs.subject = s;
  qr.encounter as e -> obs.encounter = e;
  qr.authored as t -> obs.effective = t "effective";
  qr.source as src -> obs.performer = src "performerFromSource";
  qr where (source.exists().not()) then {
    qr.author as a -> obs.performer = a "performerFromAuthor";
  } "performerFallback";
  // A stored response's id already reads "QuestionnaireResponse/<id>", so it is
  // a relative reference as it stands. The hasValue() guard is what stops an
  // unsaved response -- one posted straight to $extract rather than saved first
  // -- from writing "QuestionnaireResponse/null" into the record.
  qr.id as qid where ($this.hasValue()) ->  obs.derivedFrom = create('Reference') as ref,  ref.reference = qid "linkQuestionnaireResponse";
}

group SetObservationFullUrl(source obs : Observation, target entry) {
  obs.id as id -> entry.fullUrl = append('https://fhir.slade360.co.ke/fhir/Observation/', id) "assignFullUrl";
}

// The two answer shapes a component can carry. Both read the answer through the
// untyped `.value` accessor: reading `valueCoding` or `valueQuantity` by its
// typed property name fails at transform time on HAPI R5 with "Attempt to read
// invalid property ... on QuestionnaireResponse.item.answer".
group SetComponentCodedValue(source it, target comp) {
  it.answer first as a then {
    a.value as cv -> comp.value = create('CodeableConcept') as cc then {
      cv -> cc.coding = cv "valueCoding";
      cv.display as d -> cc.text = d "valueText";
    } "codedValue";
  } "componentAnswer";
}

group SetComponentValue(source it, target comp) {
  it.answer first as a then {
    a.value as v -> comp.value = v "plainValue";
  } "componentAnswer";
}

group BuildDeviceUsageBase(source qr : QR, target r : DeviceUsage, target entry) {
  qr -> r then SetResponseProvenance(qr, r) "responseProvenance";
  qr -> r.id = uuid() then SetDeviceUsageFullUrl(r, entry) "idAndFullUrl";
  qr -> entry.request as request then {
    qr -> request.method = 'POST' "requestMethod";
    qr -> request.url = 'DeviceUsage' "requestUrl";
  } "entryRequest";
  qr.subject as s -> r.patient = s;
}

group SetDeviceUsageFullUrl(source r : DeviceUsage, target entry) {
  r.id as id -> entry.fullUrl = append('https://fhir.slade360.co.ke/fhir/DeviceUsage/', id) "assignFullUrl";
}

// ── Provenance and tenancy ───────────────────────────────────────────────────
// Two tags on everything this map creates. The first says which questionnaire
// produced it, so a form that reopens mid-admission recalls its own earlier
// entries and not another form's. The second copies the tenant tags off the
// response, because nothing else on the path puts them there.
// The code is the form's document type, not the questionnaire's id: every
// environment mints its own ids, and there is only one set of maps, so an id
// here would tie the tag to whichever environment stamped it.
// ── Provenance and tenancy ───────────────────────────────────────────────────
group SetResponseProvenance(source qr : QR, target r) {
  qr -> r.meta as m then {
    qr -> m.tag as t then {
      qr -> t.system = 'http://slade360edi.com/questionnaire-provenance' "provenanceSystem";
      qr -> t.code = 'plates-and-screws' "provenanceCode";
      qr -> t.display = 'Plates and screws' "provenanceDisplay";
    } "provenanceTag";
  } "provenanceMeta";
  // Every tag the response carries, onto the resource. `meta` is 0..1, so this
  // lands on the same meta the rule above created rather than a second one.
  qr.meta as qm then {
    qm.tag as qt ->  r.meta as m,  m.tag = qt "copyTag";
  } "tenantTags";
}