import { defineStore } from "pinia";

export const useScenariosStore = defineStore("scenarios", () => {
  // Scenario presets
  const presets = ref({
    current: {
      name: "Operate Current Plan",
      description: "Continue with existing revenue and capacity",
      settings: {},
    },
    quitDayJobs: {
      name: "Quit Day Jobs",
      description: "Members leave external work, increase co-op hours",
      settings: {
        targetHoursMultiplier: 1.5,
        externalCoverageReduction: 0.8,
      },
    },
    startProduction: {
      name: "Start Production",
      description: "Launch product development phase",
      settings: {
        productionCostsIncrease: 2000,
        effortHoursIncrease: 100,
      },
    },
    sixMonth: {
      name: "6-Month Plan",
      description: "Extended planning horizon",
      settings: {
        timeHorizonMonths: 6,
      },
    },
  });

  // What-if sliders state
  const sliders = ref({
    monthlyRevenue: 0,
    paidHoursPerMonth: 0,
    winRatePct: 0,
    avgPayoutDelayDays: 0,
    hourlyWageAdjust: 0,
  });

  // Selected scenario
  const activeScenario = ref("current");

  // Computed scenario results (will be calculated by composables)
  const scenarioResults = computed(() => ({
    runway: 0,
    monthlyCosts: 0,
    cashflowRisk: "low",
    recommendations: [],
  }));

  // Actions
  function setActiveScenario(scenarioKey) {
    activeScenario.value = scenarioKey;
  }

  function updateSlider(key, value) {
    if (key in sliders.value) {
      sliders.value[key] = value;
    }
  }

  function resetSliders() {
    sliders.value = {
      monthlyRevenue: 0,
      paidHoursPerMonth: 0,
      winRatePct: 0,
      avgPayoutDelayDays: 0,
      hourlyWageAdjust: 0,
    };
  }

  function saveCustomScenario(name, settings) {
    presets.value[name.toLowerCase().replace(/\s+/g, "")] = {
      name,
      description: "Custom scenario",
      settings,
    };
  }

  return {
    presets: readonly(presets),
    sliders,
    activeScenario: readonly(activeScenario),
    scenarioResults,
    setActiveScenario,
    updateSlider,
    resetSliders,
    saveCustomScenario,
  };
});