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disband.go
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disband.go
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package orders
import (
"fmt"
"time"
"github.com/zond/godip"
)
var DisbandOrder = &disband{}
func Disband(source godip.Province, at time.Time) *disband {
return &disband{
targets: []godip.Province{source},
at: at,
}
}
type disband struct {
targets []godip.Province
at time.Time
}
func (self *disband) String() string {
return fmt.Sprintf("%v %v", self.targets[0], godip.Disband)
}
func (self *disband) Type() godip.OrderType {
return godip.Disband
}
func (self *disband) DisplayType() godip.OrderType {
return godip.Disband
}
func (self *disband) Flags() map[godip.Flag]bool {
return nil
}
func (self *disband) Targets() []godip.Province {
return self.targets
}
func (self *disband) At() time.Time {
return self.at
}
func (self *disband) adjudicateBuildPhase(r godip.Resolver) error {
unit, _, _ := r.Unit(self.targets[0])
_, disbands, _ := AdjustmentStatus(r, unit.Nation)
if len(disbands) == 0 || self.at.After(disbands[len(disbands)-1].At()) {
return godip.ErrIllegalDisband
}
return nil
}
func (self *disband) adjudicateRetreatPhase(r godip.Resolver) error {
return nil
}
func (self *disband) Adjudicate(r godip.Resolver) error {
if r.Phase().Type() == godip.Adjustment {
return self.adjudicateBuildPhase(r)
}
return self.adjudicateRetreatPhase(r)
}
func (self *disband) validateRetreatPhase(v godip.Validator) (godip.Nation, error) {
if !v.Graph().Has(self.targets[0]) {
return "", godip.ErrInvalidTarget
}
var ok bool
var dislodged godip.Unit
dislodged, self.targets[0], ok = v.Dislodged(self.targets[0])
if !ok {
return "", godip.ErrMissingUnit
}
return dislodged.Nation, nil
}
func (self *disband) validateBuildPhase(v godip.Validator) (godip.Nation, error) {
if !v.Graph().Has(self.targets[0]) {
return "", godip.ErrInvalidTarget
}
var unit godip.Unit
var ok bool
if unit, self.targets[0], ok = v.Unit(self.targets[0]); !ok {
return "", godip.ErrMissingUnit
}
if _, _, balance := AdjustmentStatus(v, unit.Nation); balance > -1 {
return "", godip.ErrMissingDeficit
}
return unit.Nation, nil
}
func (self *disband) Parse(bits []string) (godip.Adjudicator, error) {
var result godip.Adjudicator
var err error
if len(bits) > 1 && godip.OrderType(bits[1]) == self.DisplayType() {
if len(bits) == 2 {
result = Disband(godip.Province(bits[0]), time.Now())
}
if result == nil {
err = fmt.Errorf("Can't parse as %+v", bits)
}
}
return result, err
}
func (self *disband) Options(v godip.Validator, nation godip.Nation, src godip.Province) (result godip.Options) {
if src.Super() != src {
return
}
if v.Phase().Type() == godip.Adjustment {
if v.Graph().Has(src) {
if unit, actualSrc, ok := v.Unit(src); ok {
if unit.Nation == nation {
if _, _, balance := AdjustmentStatus(v, unit.Nation); balance < 0 {
result = godip.Options{
godip.SrcProvince(actualSrc): nil,
}
}
}
}
}
} else if v.Phase().Type() == godip.Retreat {
if v.Graph().Has(src) {
if unit, actualSrc, ok := v.Dislodged(src); ok {
if unit.Nation == nation {
result = godip.Options{
godip.SrcProvince(actualSrc): nil,
}
}
}
}
}
return
}
func (self *disband) Validate(v godip.Validator) (godip.Nation, error) {
if v.Phase().Type() == godip.Adjustment {
return self.validateBuildPhase(v)
} else if v.Phase().Type() == godip.Retreat {
return self.validateRetreatPhase(v)
}
return "", godip.ErrInvalidPhase
}
func (self *disband) Execute(state godip.State) {
if state.Phase().Type() == godip.Adjustment {
state.RemoveUnit(self.targets[0])
} else {
state.RemoveDislodged(self.targets[0])
}
}