// server/rr/rr-calculate-allocations.js
const { GraphQLClient } = require("graphql-request");
const queries = require("../graphql-client/queries");
const RRLogger = require("./rr-logger");
const Dinero = require("dinero.js");
const _ = require("lodash");
const WsLogger = require("../web-sockets/createLogEvent").default || require("../web-sockets/createLogEvent");

// InstanceManager wiring (same as CDK file)
const InstanceManager = require("../utils/instanceMgr").default;
const { DiscountNotAlreadyCounted } = InstanceManager({
  imex: require("../job/job-totals"),
  rome: require("../job/job-totals-USA")
});

/**
 * HTTP route version (parity with CDK file)
 */
exports.defaultRoute = async function rrAllocationsHttp(req, res) {
  try {
    WsLogger.createLogEvent(req, "DEBUG", `RR: calculate allocations request for ${req.body.jobid}`);
    const jobData = await queryJobData(req, req.BearerToken, req.body.jobid);
    return res.status(200).json({ data: calculateAllocations(req, jobData) });
  } catch (error) {
    WsLogger.createLogEvent(req, "ERROR", `RR CalculateAllocations error. ${error}`);
    res.status(500).json({ error: `RR CalculateAllocations error. ${error}` });
  }
};

/**
 * Socket version (parity with CDK file)
 * @param {Socket} socket
 * @param {string} jobid
 * @returns {Promise<Array>} allocations
 */
exports.default = async function rrCalculateAllocations(socket, jobid) {
  try {
    const token = "Bearer " + socket.handshake.auth.token;
    const jobData = await queryJobData(socket, token, jobid, /* isFortellis */ false);
    return calculateAllocations(socket, jobData);
  } catch (error) {
    RRLogger(socket, "ERROR", `RR CalculateAllocations error. ${error}`);
    return [];
  }
};

async function queryJobData(connectionData, token, jobid /* , isFortellis */) {
  WsLogger.createLogEvent(connectionData, "DEBUG", `RR: querying job data for id ${jobid}`);
  const client = new GraphQLClient(process.env.GRAPHQL_ENDPOINT, {});
  const result = await client.setHeaders({ Authorization: token }).request(queries.GET_CDK_ALLOCATIONS, { id: jobid });
  WsLogger.createLogEvent(connectionData, "DEBUG", `RR: job data query result ${JSON.stringify(result, null, 2)}`);
  return result.jobs_by_pk;
}

/**
 * Core allocation logic – mirrors CDK version, but logs as RR
 */
function calculateAllocations(connectionData, job) {
  const { bodyshop } = job;

  // Build tax allocation maps for US (Rome) and IMEX (Canada) contexts
  const taxAllocations = InstanceManager({
    executeFunction: true,
    deubg: true,
    args: [],
    imex: () => ({
      state: {
        center: bodyshop.md_responsibility_centers.taxes.state.name,
        sale: Dinero(job.job_totals.totals.state_tax),
        cost: Dinero(),
        profitCenter: bodyshop.md_responsibility_centers.taxes.state,
        costCenter: bodyshop.md_responsibility_centers.taxes.state
      },
      federal: {
        center: bodyshop.md_responsibility_centers.taxes.federal.name,
        sale: Dinero(job.job_totals.totals.federal_tax),
        cost: Dinero(),
        profitCenter: bodyshop.md_responsibility_centers.taxes.federal,
        costCenter: bodyshop.md_responsibility_centers.taxes.federal
      }
    }),
    rome: () => ({
      tax_ty1: {
        center: bodyshop.md_responsibility_centers.taxes[`tax_ty1`].name,
        sale: Dinero(job.job_totals.totals.us_sales_tax_breakdown[`ty1Tax`]),
        cost: Dinero(),
        profitCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty1`],
        costCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty1`]
      },
      tax_ty2: {
        center: bodyshop.md_responsibility_centers.taxes[`tax_ty2`].name,
        sale: Dinero(job.job_totals.totals.us_sales_tax_breakdown[`ty2Tax`]),
        cost: Dinero(),
        profitCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty2`],
        costCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty2`]
      },
      tax_ty3: {
        center: bodyshop.md_responsibility_centers.taxes[`tax_ty3`].name,
        sale: Dinero(job.job_totals.totals.us_sales_tax_breakdown[`ty3Tax`]),
        cost: Dinero(),
        profitCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty3`],
        costCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty3`]
      },
      tax_ty4: {
        center: bodyshop.md_responsibility_centers.taxes[`tax_ty4`].name,
        sale: Dinero(job.job_totals.totals.us_sales_tax_breakdown[`ty4Tax`]),
        cost: Dinero(),
        profitCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty4`],
        costCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty4`]
      },
      tax_ty5: {
        center: bodyshop.md_responsibility_centers.taxes[`tax_ty5`].name,
        sale: Dinero(job.job_totals.totals.us_sales_tax_breakdown[`ty5Tax`]),
        cost: Dinero(),
        profitCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty5`],
        costCenter: bodyshop.md_responsibility_centers.taxes[`tax_ty5`]
      }
    })
  });

  // Detect existing MAPA/MASH (Mitchell) lines so we don’t double count
  let hasMapaLine = false;
  let hasMashLine = false;

  const profitCenterHash = job.joblines.reduce((acc, val) => {
    if (val.db_ref === "936008") hasMapaLine = true; // paint materials (MAPA)
    if (val.db_ref === "936007") hasMashLine = true; // shop supplies (MASH)

    if (val.profitcenter_part) {
      if (!acc[val.profitcenter_part]) acc[val.profitcenter_part] = Dinero();

      let dineroAmount = Dinero({ amount: Math.round(val.act_price * 100) }).multiply(val.part_qty || 1);

      // Conditional discount add-on if not already counted elsewhere
      dineroAmount = dineroAmount.add(
        ((val.prt_dsmk_m && val.prt_dsmk_m !== 0) || (val.prt_dsmk_p && val.prt_dsmk_p !== 0)) &&
          DiscountNotAlreadyCounted(val, job.joblines)
          ? val.prt_dsmk_m
            ? Dinero({ amount: Math.round(val.prt_dsmk_m * 100) })
            : Dinero({ amount: Math.round(val.act_price * 100) })
                .multiply(val.part_qty || 0)
                .percentage(Math.abs(val.prt_dsmk_p || 0))
                .multiply(val.prt_dsmk_p > 0 ? 1 : -1)
          : Dinero()
      );

      acc[val.profitcenter_part] = acc[val.profitcenter_part].add(dineroAmount);
    }

    if (val.profitcenter_labor && val.mod_lbr_ty) {
      if (!acc[val.profitcenter_labor]) acc[val.profitcenter_labor] = Dinero();
      acc[val.profitcenter_labor] = acc[val.profitcenter_labor].add(
        Dinero({ amount: Math.round(job[`rate_${val.mod_lbr_ty.toLowerCase()}`] * 100) }).multiply(val.mod_lb_hrs)
      );
    }

    return acc;
  }, {});

  const selectedDmsAllocationConfig = bodyshop.md_responsibility_centers.dms_defaults.find(
    (d) => d.name === job.dms_allocation
  );

  WsLogger.createLogEvent(
    connectionData,
    "DEBUG",
    `RR: Using DMS Allocation ${selectedDmsAllocationConfig && selectedDmsAllocationConfig.name} for cost export.`
  );

  // Build cost center totals from bills and time tickets
  let costCenterHash = {};
  const disableBillWip = !!bodyshop?.pbs_configuration?.disablebillwip;
  if (!disableBillWip) {
    costCenterHash = job.bills.reduce((billAcc, bill) => {
      bill.billlines.forEach((line) => {
        const target = selectedDmsAllocationConfig.costs[line.cost_center];
        if (!billAcc[target]) billAcc[target] = Dinero();

        let lineDinero = Dinero({ amount: Math.round((line.actual_cost || 0) * 100) })
          .multiply(line.quantity)
          .multiply(bill.is_credit_memo ? -1 : 1);

        billAcc[target] = billAcc[target].add(lineDinero);
      });
      return billAcc;
    }, {});
  }

  job.timetickets.forEach((ticket) => {
    const ticketTotal = Dinero({
      amount: Math.round(
        ticket.rate *
          (ticket.employee && ticket.employee.flat_rate ? ticket.productivehrs || 0 : ticket.actualhrs || 0) *
          100
      )
    });
    const target = selectedDmsAllocationConfig.costs[ticket.ciecacode];
    if (!costCenterHash[target]) costCenterHash[target] = Dinero();
    costCenterHash[target] = costCenterHash[target].add(ticketTotal);
  });

  // Add MAPA/MASH lines when not explicitly present
  if (!hasMapaLine && job.job_totals.rates.mapa.total.amount > 0) {
    const accountName = selectedDmsAllocationConfig.profits.MAPA;
    const account = bodyshop.md_responsibility_centers.profits.find((c) => c.name === accountName);
    if (account) {
      if (!profitCenterHash[accountName]) profitCenterHash[accountName] = Dinero();
      profitCenterHash[accountName] = profitCenterHash[accountName].add(Dinero(job.job_totals.rates.mapa.total));
    }
  }
  if (!hasMashLine && job.job_totals.rates.mash.total.amount > 0) {
    const accountName = selectedDmsAllocationConfig.profits.MASH;
    const account = bodyshop.md_responsibility_centers.profits.find((c) => c.name === accountName);
    if (account) {
      if (!profitCenterHash[accountName]) profitCenterHash[accountName] = Dinero();
      profitCenterHash[accountName] = profitCenterHash[accountName].add(Dinero(job.job_totals.rates.mash.total));
    }
  }

  // Optional materials costing (CDK setting reused by RR sites if configured)
  if (bodyshop?.cdk_configuration?.sendmaterialscosting) {
    const percent = bodyshop.cdk_configuration.sendmaterialscosting;
    // Paint Mat
    const mapaCostName = selectedDmsAllocationConfig.costs.MAPA;
    const mapaCost = bodyshop.md_responsibility_centers.costs.find((c) => c.name === mapaCostName);
    if (mapaCost) {
      if (!costCenterHash[mapaCostName]) costCenterHash[mapaCostName] = Dinero();
      if (job.bodyshop.use_paint_scale_data === true && job.mixdata.length > 0) {
        costCenterHash[mapaCostName] = costCenterHash[mapaCostName].add(
          Dinero({ amount: Math.round(((job.mixdata[0] && job.mixdata[0].totalliquidcost) || 0) * 100) })
        );
      } else {
        costCenterHash[mapaCostName] = costCenterHash[mapaCostName].add(
          Dinero(job.job_totals.rates.mapa.total).percentage(percent)
        );
      }
    }
    // Shop Mat
    const mashCostName = selectedDmsAllocationConfig.costs.MASH;
    const mashCost = bodyshop.md_responsibility_centers.costs.find((c) => c.name === mashCostName);
    if (mashCost) {
      if (!costCenterHash[mashCostName]) costCenterHash[mashCostName] = Dinero();
      costCenterHash[mashCostName] = costCenterHash[mashCostName].add(
        Dinero(job.job_totals.rates.mash.total).percentage(percent)
      );
    }
  }

  // Provinical PVRT roll-in (Canada only)
  const { ca_bc_pvrt } = job;
  if (ca_bc_pvrt) {
    taxAllocations.state.sale = taxAllocations.state.sale.add(Dinero({ amount: Math.round((ca_bc_pvrt || 0) * 100) }));
  }

  // Towing / Storage / Other adjustments
  if (job.towing_payable && job.towing_payable !== 0) {
    const name = selectedDmsAllocationConfig.profits.TOW;
    const acct = bodyshop.md_responsibility_centers.profits.find((c) => c.name === name);
    if (acct) {
      if (!profitCenterHash[name]) profitCenterHash[name] = Dinero();
      profitCenterHash[name] = profitCenterHash[name].add(
        Dinero({ amount: Math.round((job.towing_payable || 0) * 100) })
      );
    }
  }
  if (job.storage_payable && job.storage_payable !== 0) {
    const name = selectedDmsAllocationConfig.profits.TOW;
    const acct = bodyshop.md_responsibility_centers.profits.find((c) => c.name === name);
    if (acct) {
      if (!profitCenterHash[name]) profitCenterHash[name] = Dinero();
      profitCenterHash[name] = profitCenterHash[name].add(
        Dinero({ amount: Math.round((job.storage_payable || 0) * 100) })
      );
    }
  }
  if (job.adjustment_bottom_line && job.adjustment_bottom_line !== 0) {
    const name = selectedDmsAllocationConfig.profits.PAO;
    const acct = bodyshop.md_responsibility_centers.profits.find((c) => c.name === name);
    if (acct) {
      if (!profitCenterHash[name]) profitCenterHash[name] = Dinero();
      profitCenterHash[name] = profitCenterHash[name].add(
        Dinero({ amount: Math.round((job.adjustment_bottom_line || 0) * 100) })
      );
    }
  }

  // Rome profile-level adjustments for parts / labor / materials
  if (InstanceManager({ rome: true })) {
    Object.keys(job.job_totals.parts.adjustments).forEach((key) => {
      const name = selectedDmsAllocationConfig.profits[key];
      const acct = bodyshop.md_responsibility_centers.profits.find((c) => c.name === name);
      if (acct) {
        if (!profitCenterHash[name]) profitCenterHash[name] = Dinero();
        profitCenterHash[name] = profitCenterHash[name].add(Dinero(job.job_totals.parts.adjustments[key]));
      } else {
        WsLogger.createLogEvent(connectionData, "ERROR", `RR CalculateAllocations: missing parts adj account: ${name}`);
      }
    });

    Object.keys(job.job_totals.rates).forEach((key) => {
      const rate = job.job_totals.rates[key];
      if (rate && rate.adjustment && Dinero(rate.adjustment).isZero() === false) {
        const name = selectedDmsAllocationConfig.profits[key.toUpperCase()];
        const acct = bodyshop.md_responsibility_centers.profits.find((c) => c.name === name);
        if (acct) {
          if (!profitCenterHash[name]) profitCenterHash[name] = Dinero();
          // NOTE: the original code had rate.adjustments (plural). If that’s a bug upstream, fix there.
          profitCenterHash[name] = profitCenterHash[name].add(Dinero(rate.adjustments || rate.adjustment));
        } else {
          WsLogger.createLogEvent(
            connectionData,
            "ERROR",
            `RR CalculateAllocations: missing rate adj account: ${name}`
          );
        }
      }
    });
  }

  // Merge profit & cost centers
  const jobAllocations = _.union(Object.keys(profitCenterHash), Object.keys(costCenterHash)).map((key) => {
    const profitCenter = bodyshop.md_responsibility_centers.profits.find((c) => c.name === key);
    const costCenter = bodyshop.md_responsibility_centers.costs.find((c) => c.name === key);
    return {
      center: key,
      sale: profitCenterHash[key] ? profitCenterHash[key] : Dinero(),
      cost: costCenterHash[key] ? costCenterHash[key] : Dinero(),
      profitCenter,
      costCenter
    };
  });

  // Add tax centers (non-zero only)
  const taxRows = Object.keys(taxAllocations)
    .filter((k) => taxAllocations[k].sale.getAmount() > 0 || taxAllocations[k].cost.getAmount() > 0)
    .map((k) => {
      const base = { ...taxAllocations[k], tax: k };
      // Optional GST override preserved from CDK logic
      const override = selectedDmsAllocationConfig.gst_override;
      if (k === "federal" && override) {
        base.costCenter.dms_acctnumber = override;
        base.profitCenter.dms_acctnumber = override;
      }
      return base;
    });

  // Totals adjustments centers
  const extra = [];
  if (job.job_totals.totals.ttl_adjustment) {
    extra.push({
      center: "SUB ADJ",
      sale: Dinero(job.job_totals.totals.ttl_adjustment),
      cost: Dinero(),
      profitCenter: {
        name: "SUB ADJ",
        accountdesc: "SUB ADJ",
        accountitem: "SUB ADJ",
        accountname: "SUB ADJ",
        dms_acctnumber: bodyshop.md_responsibility_centers.ttl_adjustment.dms_acctnumber
      },
      costCenter: {}
    });
  }
  if (job.job_totals.totals.ttl_tax_adjustment) {
    extra.push({
      center: "TAX ADJ",
      sale: Dinero(job.job_totals.totals.ttl_tax_adjustment),
      cost: Dinero(),
      profitCenter: {
        name: "TAX ADJ",
        accountdesc: "TAX ADJ",
        accountitem: "TAX ADJ",
        accountname: "TAX ADJ",
        dms_acctnumber: bodyshop.md_responsibility_centers.ttl_tax_adjustment.dms_acctnumber
      },
      costCenter: {}
    });
  }

  return [...jobAllocations, ...taxRows, ...extra];
}