const Dinero = require("dinero.js");

Dinero.defaultCurrency = "USD";
Dinero.globalLocale = "en-CA";
Dinero.globalRoundingMode = "HALF_UP";

exports.default = async function (req, res) {
  const { job } = req.body;
  console.log(`Calculating Job Totals for ${job.id} - ${job.ro_number}`);
  try {
    let ret = {
      parts: CalculatePartsTotals(job.joblines),
      rates: CalculateRatesTotals(job),
      additional: CalculateAdditional(job),
    };
    ret.totals = CalculateTaxesTotals(job, ret);
    res.status(200).json(ret);
  } catch (error) {
    console.log("error", error);
    res.status(400).send(JSON.stringify(error));
  }
};
function CalculateRatesTotals(ratesList, shoprates) {
  const jobLines = ratesList.joblines.filter((jl) => !jl.removed);

  let ret = {
    la1: {
      hours: 0,
      rate: ratesList.rate_la1 || 0,
    },
    la2: {
      hours: 0,
      rate: ratesList.rate_la2 || 0,
    },
    la3: {
      rate: ratesList.rate_la3 || 0,
      hours: 0,
    },
    la4: {
      rate: ratesList.rate_la4 || 0,
      hours: 0,
    },
    laa: {
      rate: ratesList.rate_laa || 0,
      hours: 0,
    },
    lab: {
      rate: ratesList.rate_lab || 0,
      hours: 0,
    },
    lad: {
      rate: ratesList.rate_lad || 0,
      hours: 0,
    },
    lae: {
      rate: ratesList.rate_lae || 0,
      hours: 0,
    },
    laf: {
      rate: ratesList.rate_laf || 0,
      hours: 0,
    },
    lag: {
      rate: ratesList.rate_lag || 0,
      hours: 0,
    },
    lam: {
      rate: ratesList.rate_lam || 0,
      hours: 0,
    },
    lar: {
      rate: ratesList.rate_lar || 0,
      hours: 0,
    },
    las: {
      rate: ratesList.rate_las || 0,
      hours: 0,
    },
    lau: {
      rate: ratesList.rate_lau || 0,
      hours: 0,
    },
    mapa: {
      rate: ratesList.rate_mapa || 0,
      hours: 0,
    },
    mash: {
      rate: ratesList.rate_mash || 0,
      hours: 0,
    },
  };

  jobLines.forEach((item) => {
    if (item.mod_lbr_ty) {
      //There's a labor type, assign the hours.
      ret[item.mod_lbr_ty.toLowerCase()].hours =
        ret[item.mod_lbr_ty.toLowerCase()].hours + item.mod_lb_hrs;

      if (item.mod_lbr_ty === "LAR") {
        ret.mapa.hours = ret.mapa.hours + item.mod_lb_hrs;
      } else {
        ret.mash.hours = ret.mash.hours + item.mod_lb_hrs;
      }
    }
  });

  let subtotal = Dinero({ amount: 0 });
  let rates_subtotal = Dinero({ amount: 0 });
  for (const property in ret) {
    ret[property].total = Dinero({ amount: ret[property].rate * 100 }).multiply(
      ret[property].hours
    );
    subtotal = subtotal.add(ret[property].total);
    if (property !== "mapa" && property !== "mash")
      rates_subtotal = rates_subtotal.add(ret[property].total);
  }
  ret.subtotal = subtotal;
  ret.rates_subtotal = rates_subtotal;

  return ret;
}
function CalculatePartsTotals(jobLines) {
  const ret = jobLines
    .filter((jl) => !jl.removed)
    .reduce(
      (acc, value) => {
        switch (value.part_type) {
          case "PAS":
          case "PASL":
            return {
              ...acc,
              sublets: {
                ...acc.sublets,
                subtotal: acc.sublets.subtotal.add(
                  Dinero({
                    amount: Math.round(value.act_price * 100),
                  }).multiply(value.part_qty || 0)
                ),
              },
            };

          default:
            if (!value.part_type) return acc;
            return {
              ...acc,
              parts: {
                ...acc.parts,
                list: {
                  ...acc.parts.list,
                  [value.part_type]:
                    acc.parts.list[value.part_type] &&
                    acc.parts.list[value.part_type].total
                      ? {
                          total: acc.parts.list[value.part_type].total.add(
                            Dinero({
                              amount: Math.round((value.act_price || 0) * 100),
                            }).multiply(value.part_qty || 0)
                          ),
                        }
                      : {
                          total: Dinero({
                            amount: Math.round((value.act_price || 0) * 100),
                          }).multiply(value.part_qty || 0),
                        },
                },
                subtotal: acc.parts.subtotal.add(
                  Dinero({
                    amount: Math.round(value.act_price * 100),
                  }).multiply(value.part_qty || 0)
                ),
              },
            };
        }
      },
      {
        parts: {
          list: {},
          subtotal: Dinero({ amount: 0 }),
          total: Dinero({ amount: 0 }),
        },
        sublets: {
          subtotal: Dinero({ amount: 0 }),
          total: Dinero({ amount: 0 }),
        },
      }
    );

  return {
    parts: {
      ...ret.parts,
      total: ret.parts.subtotal,
    },
    sublets: {
      ...ret.sublets,
      total: ret.sublets.subtotal,
    },
  };
}

function IsAdditionalCost(jobLine) {
  //May be able to use db_ref here to help.
  //936012 is Haz Waste Dispoal
  //936008 is Paint/Materials
  //936007 is Shop/Materials

  return !jobLine.db_ref || jobLine.db_ref.startsWith("9360");
}

function CalculateAdditional(job) {
  let ret = job.joblines
    .filter((jl) => !jl.removed && IsAdditionalCost(jl))
    .reduce((acc, val) => {
      return acc.add(
        Dinero({ amount: Math.round((val.act_price || 0) * 100) }).multiply(
          val.part_qty || 1
        )
      );
    }, Dinero());
  ret = ret
    .add(
      Dinero({
        amount: Math.round((job.towing_payable || 0) * 100),
      })
    )
    .add(
      Dinero({
        amount: Math.round((job.storage_payable || 0) * 100),
      })
    );
  return ret;
}

function CalculateTaxesTotals(job, otherTotals) {
  const subtotal = otherTotals.parts.parts.subtotal
    .add(otherTotals.parts.sublets.subtotal)
    .add(otherTotals.rates.rates_subtotal)
    .add(otherTotals.additional)
    .add(Dinero({ amount: (job.towing_payable || 0) * 100 }))
    .add(Dinero({ amount: (job.storage_payable || 0) * 100 }));

  //Potential issue here with Sublet Calculation. Sublets are calculated under labor in Mitchell, but it's done in IO
  //Under the parts rates.

  let statePartsTax = Dinero();
  let additionalItemsTax = Dinero();

  job.joblines
    .filter((jl) => !jl.removed)
    .forEach((val) => {
      if (!!!val.tax_part || !!!val.part_type || IsAdditionalCost(val)) {
        additionalItemsTax = additionalItemsTax.add(
          Dinero({ amount: Math.round((val.act_price || 0) * 100) })
            .multiply(val.part_qty || 1)
            .percentage(
              ((job.parts_tax_rates &&
                job.parts_tax_rates["PAN"] &&
                job.parts_tax_rates["PAN"].prt_tax_rt) ||
                0) * 100
            )
        );
      } else {
        statePartsTax = statePartsTax.add(
          Dinero({ amount: Math.round((val.act_price || 0) * 100) })
            .multiply(val.part_qty || 1)
            .percentage(
              ((job.parts_tax_rates &&
                job.parts_tax_rates[val.part_type] &&
                job.parts_tax_rates[val.part_type].prt_tax_rt) ||
                0) * 100
            )
        );
      }
    });

  let ret = {
    subtotal: subtotal,
    federal_tax: subtotal.percentage((job.federal_tax_rate || 0) * 100),
    statePartsTax,
    state_tax: statePartsTax
      .add(
        otherTotals.rates.rates_subtotal.percentage((job.tax_lbr_rt || 0) * 100)
      )
      .add(
        Dinero({
          amount: Math.round((job.towing_payable || 0) * 100),
        }).percentage((job.tax_tow_rt || 0) * 100)
      )
      .add(
        Dinero({
          amount: Math.round((job.storage_payable || 0) * 100),
        }).percentage((job.tax_str_rt || 0) * 100)
      )
      .add(additionalItemsTax),
    local_tax: subtotal.percentage((job.local_tax_rate || 0) * 100),
  };
  ret.total_repairs = ret.subtotal
    .add(ret.federal_tax)
    .add(ret.state_tax)
    .add(ret.local_tax);

  ret.custPayable = {
    deductible: Dinero({ amount: (job.ded_amt || 0) * 100 }) || 0,
    federal_tax: job.ca_gst_registrant ? ret.federal_tax : Dinero(),
    other_customer_amount: Dinero({
      amount: (job.other_amount_payable || 0) * 100,
    }),
    dep_taxes: Dinero({ amount: (job.depreciation_taxes || 0) * 100 }),
  };

  ret.custPayable.total = ret.custPayable.deductible
    .add(ret.custPayable.federal_tax)
    .add(ret.custPayable.other_customer_amount)
    .add(ret.custPayable.dep_taxes);

  ret.net_repairs = ret.total_repairs.subtract(ret.custPayable.total);

  return ret;
}