import type { Upgrade } from "../schemas";

/**
 * Ship upgrades (CR-009 §2). Percentages are of the model's base stat and add
 * up across levels. Overrides keep models distinct (decision 0.5.67) and give
 * only a maxed Courier the reach to Mars from Earth (decision 0.5.68, CR-015).
 * Extended Fuel Tanks raise tank capacity; reach grows as capacity^(1 ÷ 0.65)
 * on the economic-distance curve, so its percentages are smaller than the old
 * range ones for the same maxed reach.
 */
export const upgrades: Upgrade[] = [
  {
    id: "engines",
    name: "Engine Tuning",
    stat: "cruiseSpeedKmPerGameHour",
    percentPerLevel: 10,
    maxLevel: 3,
  },
  {
    id: "cargo-bay",
    name: "Cargo Bay Expansion",
    stat: "cargoCapacityTonnes",
    percentPerLevel: 15,
    maxLevel: 3,
  },
  {
    id: "fuel-tanks",
    name: "Extended Fuel Tanks",
    stat: "tankCapacityFu",
    // Maxed: × 1.33 capacity, ≈ × 1.55 reach (as +20 % range a level did).
    percentPerLevel: 11,
    maxLevel: 3,
    modelOverrides: {
      // Reach 4.9 → 54 → 133 → 234 M km: Earth → Mars (≈ 201) only at level 3; level 2 can't reach Mars from the Moon either (133 × 1.3 < 200).
      courier: { percentPerLevel: 380 },
      // Reach 460 → ≈ 664 M km at level 3: short of a base Bulk Hauler's 1,250 and of Jupiter from Earth (≈ 792).
      freighter: { percentPerLevel: 9 },
    },
  },
  {
    id: "landing-thrusters",
    name: "Landing Thrusters",
    stat: "overheadGameHours",
    percentPerLevel: -15,
    maxLevel: 3,
  },
  {
    // Deferred in CR-009, added by CR-026 (decision 0.5.149): +1 hull rating a level.
    id: "hull-plating",
    name: "Hull Plating",
    stat: "hullRating",
    percentPerLevel: 0,
    flatPerLevel: 1,
    maxLevel: 3,
  },
  {
    id: "handling-gear",
    name: "Cargo Handling Gear",
    stat: "handlingGameHoursPerTonne",
    percentPerLevel: -15,
    maxLevel: 3,
  },
];

/** An upgrade's percent per level for a ship model, after overrides. */
export function upgradePercentPerLevel(upgrade: Upgrade, modelId: string): number {
  return upgrade.modelOverrides?.[modelId]?.percentPerLevel ?? upgrade.percentPerLevel;
}

/** An upgrade's highest level for a ship model, after overrides. */
export function upgradeMaxLevel(upgrade: Upgrade, modelId: string): number {
  return upgrade.modelOverrides?.[modelId]?.maxLevel ?? upgrade.maxLevel;
}