import { defineStore } from "pinia";

export const usePoliciesStore = defineStore(
  "policies",
  () => {
    // Schema version for persistence
    const schemaVersion = "1.0";

    // Core policies - initialize with empty/zero values
    const equalHourlyWage = ref(0);
    const payrollOncostPct = ref(0);
    const savingsTargetMonths = ref(0);
    const minCashCushionAmount = ref(0);
    const operatingMode = ref<'minimum' | 'target'>('minimum');
    
    // Pay policy for member needs coverage
    const payPolicy = ref({
      relationship: 'equal-pay' as 'equal-pay' | 'needs-weighted' | 'role-banded' | 'hours-weighted',
      roleBands: [] as Array<{ role: string; hourlyWage: number }>
    });

    // Deferred pay limits
    const deferredCapHoursPerQtr = ref(0);
    const deferredSunsetMonths = ref(0);

    // Surplus distribution order
    const surplusOrder = ref([
      "Deferred",
      "Savings",
      "Hardship",
      "Training",
      "Patronage",
      "Retained",
    ]);

    // Payment priority order
    const paymentPriority = ref(["Payroll", "Taxes", "CriticalOps", "Vendors"]);

    // Volunteer scope - allowed flows
    const volunteerScope = ref({
      allowedFlows: ["Care", "SharedLearning"],
    });

    // Validation computed
    const isValid = computed(() => {
      return (
        equalHourlyWage.value > 0 &&
        payrollOncostPct.value >= 0 &&
        payrollOncostPct.value <= 100 &&
        savingsTargetMonths.value >= 0 &&
        minCashCushionAmount.value >= 0 &&
        deferredCapHoursPerQtr.value >= 0 &&
        deferredSunsetMonths.value >= 0
      );
    });

    // Wizard-required actions
    function setEqualWage(amount) {
      if (amount > 0) {
        equalHourlyWage.value = amount;
      }
    }

    function setOncostPct(pct) {
      if (pct >= 0 && pct <= 100) {
        payrollOncostPct.value = pct;
      }
    }

    function setSavingsTargetMonths(months) {
      if (months >= 0) {
        savingsTargetMonths.value = months;
      }
    }

    function setMinCashCushion(amount) {
      if (amount >= 0) {
        minCashCushionAmount.value = amount;
      }
    }

    function setDeferredCap(hours) {
      if (hours >= 0) {
        deferredCapHoursPerQtr.value = hours;
      }
    }

    function setDeferredSunset(months) {
      if (months >= 0) {
        deferredSunsetMonths.value = months;
      }
    }

    function setVolunteerScope(allowedFlows) {
      volunteerScope.value = { allowedFlows: [...allowedFlows] };
    }

    function setSurplusOrder(order) {
      surplusOrder.value = [...order];
    }

    function setPaymentPriority(priority) {
      paymentPriority.value = [...priority];
    }
    
    function setPayPolicy(relationship, roleBands = []) {
      payPolicy.value = { 
        relationship, 
        roleBands: [...roleBands] 
      };
    }

    // Legacy actions
    function updatePolicy(key, value) {
      if (key === "equalHourlyWage") setEqualWage(value);
      else if (key === "payrollOncostPct") setOncostPct(value);
      else if (key === "savingsTargetMonths") setSavingsTargetMonths(value);
      else if (key === "minCashCushionAmount") setMinCashCushion(value);
      else if (key === "deferredCapHoursPerQtr") setDeferredCap(value);
      else if (key === "deferredSunsetMonths") setDeferredSunset(value);
    }

    function updateSurplusOrder(newOrder) {
      setSurplusOrder(newOrder);
    }

    function updatePaymentPriority(newOrder) {
      setPaymentPriority(newOrder);
    }

    // Reset function
    function resetPolicies() {
      equalHourlyWage.value = 0;
      payrollOncostPct.value = 0;
      savingsTargetMonths.value = 0;
      minCashCushionAmount.value = 0;
      operatingMode.value = 'minimum';
      payPolicy.value = { relationship: 'equal-pay', roleBands: [] };
      deferredCapHoursPerQtr.value = 0;
      deferredSunsetMonths.value = 0;
      surplusOrder.value = [
        "Deferred",
        "Savings",
        "Hardship",
        "Training",
        "Patronage",
        "Retained",
      ];
      paymentPriority.value = ["Payroll", "Taxes", "CriticalOps", "Vendors"];
      volunteerScope.value = { allowedFlows: ["Care", "SharedLearning"] };
    }

    return {
      equalHourlyWage,
      payrollOncostPct,
      savingsTargetMonths,
      minCashCushionAmount,
      operatingMode,
      payPolicy,
      deferredCapHoursPerQtr,
      deferredSunsetMonths,
      surplusOrder,
      paymentPriority,
      volunteerScope,
      isValid,
      schemaVersion,
      // Wizard actions
      setEqualWage,
      setOncostPct,
      setSavingsTargetMonths,
      setMinCashCushion,
      setPayPolicy,
      setDeferredCap,
      setDeferredSunset,
      setVolunteerScope,
      setSurplusOrder,
      setPaymentPriority,
      resetPolicies,
      // Legacy actions
      updatePolicy,
      updateSurplusOrder,
      updatePaymentPriority,
    };
  },
  {
    persist: {
      key: "urgent-tools-policies",
      paths: [
        "equalHourlyWage",
        "payrollOncostPct",
        "savingsTargetMonths",
        "minCashCushionAmount",
        "operatingMode",
        "payPolicy",
        "deferredCapHoursPerQtr",
        "deferredSunsetMonths",
        "surplusOrder",
        "paymentPriority",
        "volunteerScope",
      ],
    },
  }
);