import { defineStore } from "pinia";

export const useCoopBuilderStore = defineStore("coop", {
  state: () => ({
    operatingMode: "min" as "min" | "target",

    // Currency preference
    currency: "EUR" as string,

    // Flag to track if data was intentionally cleared
    _wasCleared: false,

    members: [] as Array<{
      id: string;
      name: string;
      hoursPerMonth?: number;
      minMonthlyNeeds: number;
      monthlyPayPlanned: number;
    }>,

    streams: [] as Array<{
      id: string;
      label: string;
      monthly: number;
      annual?: number;
      amountType?: 'monthly' | 'annual';
      category?: string;
      certainty?: string;
    }>,

    milestones: [] as Array<{
      id: string;
      label: string;
      date: string;
    }>,

    // Scenario and stress test state
    scenario: "current" as
      | "current"
      | "start-production"
      | "custom",
    stress: {
      revenueDelay: 0,
      costShockPct: 0,
      grantLost: false,
    },

    // Policy settings
    policy: {
      relationship: "equal-pay" as "equal-pay" | "needs-weighted" | "hours-weighted",
    },
    equalHourlyWage: 50,
    payrollOncostPct: 25,
    savingsTargetMonths: 6,
    minCashCushion: 10000,

    // Cash reserves
    currentCash: 50000,
    currentSavings: 15000,

    // Overhead costs
    overheadCosts: [] as Array<{
      id?: string;
      name: string;
      amount: number;
      annualAmount?: number;
      amountType?: 'monthly' | 'annual';
      category?: string;
    }>,
  }),

  getters: {
    totalRevenue: (state) => {
      return state.streams.reduce((sum, s) => sum + (s.monthly || 0), 0);
    },

    totalOverhead: (state) => {
      return state.overheadCosts.reduce((sum, c) => sum + (c.amount || 0), 0);
    },

    totalLiquid: (state) => {
      return state.currentCash + state.currentSavings;
    },
  },

  actions: {
    // Member actions
    upsertMember(m: any) {
      const i = this.members.findIndex((x) => x.id === m.id);
      // Ensure all keys exist (prevents undefined stripping)
      const withDefaults = {
        id: m.id || Date.now().toString(),
        name: m.name || m.displayName || "",
        role: m.role ?? "",
        hoursPerMonth: m.hoursPerMonth ?? 0,
        minMonthlyNeeds: m.minMonthlyNeeds ?? 0,
        targetMonthlyPay: m.targetMonthlyPay ?? 0,
        externalMonthlyIncome: m.externalMonthlyIncome ?? 0,
        monthlyPayPlanned: m.monthlyPayPlanned ?? 0,
      };
      if (i === -1) {
        this.members.push(withDefaults);
      } else {
        this.members[i] = withDefaults;
      }
    },

    removeMember(id: string) {
      this.members = this.members.filter((m) => m.id !== id);
    },

    // Stream actions
    upsertStream(s: any) {
      const i = this.streams.findIndex((x) => x.id === s.id);
      
      // Calculate monthly value based on amount type
      let monthlyValue = s.monthly || s.targetMonthlyAmount || 0;
      if (s.amountType === 'annual' && s.annual) {
        monthlyValue = Math.round(s.annual / 12);
      }
      
      const withDefaults = {
        id: s.id || Date.now().toString(),
        label: s.label || s.name || "",
        monthly: monthlyValue,
        annual: s.annual || s.targetAnnualAmount || monthlyValue * 12,
        amountType: s.amountType || 'monthly',
        category: s.category ?? "",
        certainty: s.certainty ?? "Probable",
      };
      if (i === -1) {
        this.streams.push(withDefaults);
      } else {
        this.streams[i] = withDefaults;
      }
    },

    removeStream(id: string) {
      this.streams = this.streams.filter((s) => s.id !== id);
    },

    // Milestone actions
    addMilestone(label: string, date: string) {
      this.milestones.push({
        id: Date.now().toString(),
        label,
        date,
      });
    },

    removeMilestone(id: string) {
      this.milestones = this.milestones.filter((m) => m.id !== id);
    },

    // Operating mode
    setOperatingMode(mode: "min" | "target") {
      this.operatingMode = mode;
    },

    // Scenario
    setScenario(
      scenario: "current" | "start-production" | "custom"
    ) {
      this.scenario = scenario;
    },

    // Stress test
    updateStress(updates: Partial<typeof this.stress>) {
      this.stress = { ...this.stress, ...updates };
    },

    // Policy updates
    setPolicy(relationship: "equal-pay" | "needs-weighted" | "hours-weighted") {
      this.policy.relationship = relationship;
    },

    setEqualWage(wage: number) {
      this.equalHourlyWage = wage;
    },

    setOncostPct(pct: number) {
      this.payrollOncostPct = pct;
    },

    setCurrency(currency: string) {
      this.currency = currency;
    },

    // Overhead costs
    addOverheadCost(cost: any) {
      // Calculate monthly value based on amount type
      let monthlyValue = cost.amount || 0;
      if (cost.amountType === 'annual' && cost.annualAmount) {
        monthlyValue = Math.round(cost.annualAmount / 12);
      }
      
      const withDefaults = {
        id: cost.id || Date.now().toString(),
        name: cost.name || "",
        amount: monthlyValue,
        annualAmount: cost.annualAmount || monthlyValue * 12,
        amountType: cost.amountType || 'monthly',
        category: cost.category ?? "",
      };
      this.overheadCosts.push(withDefaults);
    },

    upsertOverheadCost(cost: any) {
      const i = this.overheadCosts.findIndex((c) => c.id === cost.id);
      
      // Calculate monthly value based on amount type
      let monthlyValue = cost.amount || 0;
      if (cost.amountType === 'annual' && cost.annualAmount) {
        monthlyValue = Math.round(cost.annualAmount / 12);
      }
      
      const withDefaults = {
        id: cost.id || Date.now().toString(),
        name: cost.name || "",
        amount: monthlyValue,
        annualAmount: cost.annualAmount || monthlyValue * 12,
        amountType: cost.amountType || 'monthly',
        category: cost.category ?? "",
      };
      if (i === -1) {
        this.overheadCosts.push(withDefaults);
      } else {
        this.overheadCosts[i] = withDefaults;
      }
    },

    removeOverheadCost(id: string) {
      this.overheadCosts = this.overheadCosts.filter((c) => c.id !== id);
    },

    // Initialize with default data if empty - DISABLED
    // NO automatic initialization - stores should start empty
    initializeDefaults() {
      // DISABLED: No automatic data loading
      // User must explicitly choose to load demo data
      return;
    },

    // Clear ALL data - no exceptions
    clearAll() {
      // Reset ALL state to initial empty values
      this._wasCleared = true;
      this.operatingMode = "min";
      this.currency = "EUR";
      this.members = [];
      this.streams = [];
      this.milestones = [];
      this.scenario = "current";
      this.stress = {
        revenueDelay: 0,
        costShockPct: 0,
        grantLost: false,
      };
      this.policy = {
        relationship: "equal-pay",
      };
      this.equalHourlyWage = 0;
      this.payrollOncostPct = 0;
      this.savingsTargetMonths = 0;
      this.minCashCushion = 0;
      this.currentCash = 0;
      this.currentSavings = 0;
      this.overheadCosts = [];

      // Clear ALL localStorage data
      if (typeof window !== "undefined") {
        // Save cleared flag first
        localStorage.setItem("urgent-tools-cleared-flag", "true");

        // Remove all known keys
        const keysToRemove = [
          "coop_builder_v1",
          "urgent-tools-members",
          "urgent-tools-policies",
          "urgent-tools-streams",
          "urgent-tools-budget",
          "urgent-tools-cash",
          "urgent-tools-schema-version",
        ];

        keysToRemove.forEach((key) => localStorage.removeItem(key));

        // Clear any other urgent-tools or coop keys
        const allKeys = Object.keys(localStorage);
        allKeys.forEach((key) => {
          if (key.startsWith("urgent-tools-") || key.startsWith("coop_")) {
            if (key !== "urgent-tools-cleared-flag") {
              localStorage.removeItem(key);
            }
          }
        });
      }
    },
  },

  persist: {
    key: "coop_builder_v1",
    storage: typeof window !== "undefined" ? localStorage : undefined,
  },
});