# Knowledge Confidence State Machine — D-041
# 4-level confidence hierarchy with state tracking and decay.
# Maps to dialogue trust tiers (D-075) and fog recognition (D-059).

vars: {
  color-bg: "#2a3040"
  color-stroke: "#333340"
  color-text: "#c8d0e0"
  color-accent: "#c8d8f0"
  color-dim: "#1a1e24"
}

none: No Knowledge\n(entity unknown) {
  shape: oval
  style.fill: ${color-dim}
  style.stroke: ${color-stroke}
  style.font-color: ${color-text}
}

suspects: Suspects\n"something off" {
  style.fill: ${color-bg}
  style.stroke: ${color-stroke}
  style.font-color: ${color-text}
}

knows_of: KnowsOf\n"X is involved in Y" {
  style.fill: ${color-bg}
  style.stroke: ${color-stroke}
  style.font-color: ${color-text}
}

knows_details: KnowsDetails\n"actionable detail" {
  style.fill: ${color-bg}
  style.stroke: ${color-accent}
  style.font-color: ${color-text}
}

direct: Direct\n"currently in LOS" {
  style.fill: ${color-bg}
  style.stroke: ${color-accent}
  style.font-color: ${color-text}
  style.bold: true
}

dialogue_gates: Dialogue Trust Gate (D-075) {
  style.fill: ${color-dim}
  style.stroke: ${color-stroke}
  style.font-color: ${color-text}

  surface: Surface tier\n(any confidence) {
    style.fill: ${color-bg}
    style.stroke: ${color-stroke}
    style.font-color: ${color-text}
  }
  real: Real tier\n(KnowsOf+ AND Friendly/Known) {
    style.fill: ${color-bg}
    style.stroke: ${color-stroke}
    style.font-color: ${color-text}
  }
  secret: Secret tier\n(KnowsDetails+ AND Friendly) {
    style.fill: ${color-bg}
    style.stroke: ${color-accent}
    style.font-color: ${color-text}
  }
}

fog_gate: Fog Recognition (D-059) {
  style.fill: ${color-dim}
  style.stroke: ${color-stroke}
  style.font-color: ${color-text}

  recognized: Recognized entity\n(D-033 color + silhouette) {
    style.fill: ${color-bg}
    style.stroke: ${color-accent}
    style.font-color: ${color-text}
  }
  unrecognized: Grey blob\n(no identity) {
    style.fill: ${color-bg}
    style.stroke: ${color-stroke}
    style.font-color: ${color-text}
  }
}

knowledge_states: KnowledgeState {
  shape: package
  style.fill: ${color-dim}
  style.stroke: ${color-stroke}
  style.font-color: ${color-text}

  active: Active (Sprint 2) {
    style.fill: ${color-bg}
    style.stroke: ${color-accent}
    style.font-color: ${color-text}
  }
  contradicted: Contradicted (Sprint 3+)\nToldBy conflicts DirectObservation {
    style.fill: ${color-bg}
    style.stroke: ${color-stroke}
    style.font-color: ${color-text}
    style.stroke-dash: 4
  }
  stale: Stale (Sprint 3+)\naged past DecayThreshold {
    style.fill: ${color-bg}
    style.stroke: ${color-stroke}
    style.font-color: ${color-text}
    style.stroke-dash: 4
  }
}

none -> suspects: "observe anomaly\nor receive tip" {
  style.stroke: ${color-stroke}
}
suspects -> knows_of: "further observation\nor testimony" {
  style.stroke: ${color-stroke}
}
knows_of -> knows_details: "direct evidence\nor confrontation" {
  style.stroke: ${color-accent}
}
knows_details -> direct: "enter LOS" {
  style.stroke: ${color-accent}
}
direct -> knows_details: "exit LOS" {
  style.stroke: ${color-stroke}
  style.stroke-dash: 4
}

# Decay path (D-041: once per game-minute)
knows_details -> knows_of: "decay\n(last_observed_tick age)" {
  style.stroke: ${color-stroke}
  style.stroke-dash: 4
}
knows_of -> suspects: "decay" {
  style.stroke: ${color-stroke}
  style.stroke-dash: 4
}

suspects -> dialogue_gates.surface
knows_of -> dialogue_gates.real
knows_details -> dialogue_gates.secret

suspects -> fog_gate.unrecognized
knows_of -> fog_gate.recognized
knows_details -> fog_gate.recognized

knows_details -> knowledge_states.contradicted: "ToldBy vs DirectObservation\n(Sprint 3+)" {
  style.stroke: ${color-stroke}
  style.stroke-dash: 4
}
knows_of -> knowledge_states.stale: "decay (Sprint 3+)" {
  style.stroke: ${color-stroke}
  style.stroke-dash: 4
}
none -> knowledge_states.active