--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Copyright 2015 Alexandre Terrasa <alexandre@moz-code.org>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Insurance refunds calculation base classes.
+module refund_base
+
+import counter
+
+# `RefundProcessor` manages the calculation of the refunds.
+#
+# See `process`.
+class RefundProcessor
+
+ # Where to generate output file.
+ var output_file: String is noinit, writable
+
+ # Where to save usage statistics.
+ var stats_file = "stats.json"
+
+ # Processes the `input_file` and write the output in `output_file`.
+ #
+ # Steps:
+ #
+ # 1. Parses the input_file and check json validity (see `load_input`).
+ # 2. Instantiates and checks the reclamation sheet against client rules
+ # (see `ReclamationSheet.from_json`).
+ # 3. Processes refunds (see `proces_refunds`).
+ # 4. Writes the output file (see `write_output`).
+ fun process(input_file, output_file: String) is abstract
+
+ # Refunds allowed for the current reclamation sheet.
+ var current_refunds = new HashMap[Care, Dollar]
+
+ # Computes allowed refunds for a given `Reclamation` found in a `ReclamationSheet`.
+ fun process_refund(sheet: ReclamationSheet, recl: Reclamation): Dollar is abstract
+
+ # Shows stats values in console
+ fun show_stats do print load_stats
+
+ # Loads stats from file as a RefundStats instance.
+ fun load_stats: RefundStats is abstract
+
+ # Saves stats in file.
+ fun save_stats(stats: RefundStats) is abstract
+
+ # Outputs error object then exit.
+ fun die(msg: String) is abstract
+
+ # Clears stats.
+ #
+ # Basically delete the stats file.
+ fun clear_stats do if stats_file.file_exists then stats_file.file_delete
+end
+
+# Stats representation using a `Counter`.
+class RefundStats
+ super Counter[String]
+end
+
+# A `Client` can ask for refunds from the insurance company.
+class Client
+
+ # Client number.
+ var number: String
+
+ redef fun to_s do return "#{number}"
+end
+
+# A `ReclamationSheet` is filled by the `Client` to obtain a `RefundSheet`.
+class ReclamationSheet
+
+ # File used for this refund.
+ var file: ReclFile is writable
+
+ # Month concerned by the refund.
+ var month: ReclMonth is writable
+
+ # Array of reclamations.
+ var recls = new Array[Reclamation] is writable
+
+ redef fun to_s do
+ return "Refund (file: {file}, month: {month}, recls: {recls.length})"
+ end
+end
+
+# A File found in a `ReclamationSheet`.
+#
+# A File points to a `Contract` and a `Client`.
+#
+# Allowed format is: `X12345` where `X` is the contract kind and `12345` is the
+# client number.
+class ReclFile
+
+ # File string id.
+ var id: String is writable
+
+ # Contract instance linked to this file.
+ var contract: Contract is noinit, writable
+
+ # Client instance linked to this file.
+ var client: Client is noinit, writable
+
+ # Returns the contract instance corresponding to `kind`.
+ fun contract_factory(proc: RefundProcessor, kind: String): Contract do
+ if kind == "A" then return new ContractA
+ if kind == "B" then return new ContractB
+ if kind == "C" then return new ContractC
+ if kind == "D" then return new ContractD
+ if kind == "E" then return new ContractE
+ proc.die("Unknown contract {kind}")
+ abort
+ end
+
+ redef fun to_s do return "{contract.kind}{client.number}"
+end
+
+# Month date formatted for contracts.
+#
+# Mainly used to factorize treatments on date calculation.
+class ReclMonth
+
+ # Internal date used to store the month.
+ var date: ReclDate is writable
+
+ # Is `date` in this month?
+ fun has(date: ReclDate): Bool do return self.date.month == date.month
+
+ redef fun to_s do
+ if date.month < 10 then
+ return "{date.year}-0{date.month}"
+ end
+ return "{date.year}-0{date.month}"
+ end
+end
+
+# The date on which a `Care` occured.
+class ReclDate
+ # Year of the month.
+ var year: Int is writable
+
+ # Month number (`1` is January).
+ var month: Int is writable
+
+ # Day number.
+ var day: Int is writable
+
+ redef fun to_s do
+ var res = new FlatBuffer
+ res.append "{year}-"
+ if month < 10 then
+ res.append "0{month}-"
+ else
+ res.append "{month}-"
+ end
+ if day < 10 then
+ res.append "0{day}"
+ else
+ res.append day.to_s
+ end
+ return res.write_to_string
+ end
+end
+
+# `RefundRecl` are parts of the `RefundReclamation`.
+class Reclamation
+ # `Care` id concerned by this reclamation.
+ var care_id: Int is writable
+
+ # Date this care was applied.
+ var date: ReclDate is writable
+
+ # Amount of money given by the `Client` in exchange of this care.
+ var fees: Dollar is writable
+
+ redef fun to_s do return "Entry (care: {care_id}, date: {date}, fees: {fees})"
+end
+
+# A `Contract` specifies the refund applicable on care.
+class Contract
+
+ # Kind of the contract (specified by a letter).
+ var kind: String is noinit, writable
+
+ # Covered cares for this kind of contract.
+ var cares = new Array[Care] is writable
+
+ # Adds a care to this contract.
+ fun add_care(care: Care) do cares.add care
+
+ # Gets a `Care` instance by its id.
+ #
+ # Returns `null` if no `Care` found.
+ fun care_by_id(id: Int): nullable Care do
+ for care in cares do
+ if care.match_id(id) then return care
+ end
+ return null
+ end
+
+ redef fun to_s do return "{kind} ({cares.length} cares)"
+end
+
+# Contracts
+# FIXME move contracts to a JSON configuration file.
+
+private class ContractA
+ super Contract
+
+ init do
+ kind = "A"
+ add_care(new UniqCare.with_vals(0, 25.0, null, null))
+ add_care(new UniqCare.with_vals(100, 35.0, null, 250.0.to_dollar))
+ add_care(new UniqCare.with_vals(150, 0.0, null, null))
+ add_care(new UniqCare.with_vals(175, 50.0, null, 200.0.to_dollar))
+ add_care(new UniqCare.with_vals(200, 25.0, null, 250.0.to_dollar))
+ add_care(new RangeCare.with_vals([300..399], 0.0, null, null))
+ add_care(new UniqCare.with_vals(400, 0.0, null, null))
+ add_care(new UniqCare.with_vals(500, 25.0, null, 150.0.to_dollar))
+ add_care(new UniqCare.with_vals(600, 40.0, null, 300.0.to_dollar))
+ add_care(new UniqCare.with_vals(700, 0.0, null, null))
+ end
+end
+
+private class ContractB
+ super Contract
+
+ init do
+ kind = "B"
+ add_care(new UniqCare.with_vals(0, 50.0, 40.0.to_dollar, null))
+ add_care(new UniqCare.with_vals(100, 50.0, 50.0.to_dollar, 250.0.to_dollar))
+ add_care(new UniqCare.with_vals(150, 0.0, null, null))
+ add_care(new UniqCare.with_vals(175, 75.0, null, 200.0.to_dollar))
+ add_care(new UniqCare.with_vals(200, 100.0,null, 250.0.to_dollar))
+ add_care(new RangeCare.with_vals([300..399], 50.0, null, null))
+ add_care(new UniqCare.with_vals(400, 0.0, null, null))
+ add_care(new UniqCare.with_vals(500, 50.0, 50.0.to_dollar, 150.0.to_dollar))
+ add_care(new UniqCare.with_vals(600, 100.0,null, 300.0.to_dollar))
+ add_care(new UniqCare.with_vals(700, 70.0, null, null))
+ end
+end
+
+private class ContractC
+ super Contract
+
+ init do
+ kind = "C"
+ add_care(new UniqCare.with_vals(0, 90.0, null, null))
+ add_care(new UniqCare.with_vals(100, 95.0, null, 250.0.to_dollar))
+ add_care(new UniqCare.with_vals(150, 85.0, null, null))
+ add_care(new UniqCare.with_vals(175, 90.0, null, 200.0.to_dollar))
+ add_care(new UniqCare.with_vals(200, 90.0, null, 250.0.to_dollar))
+ add_care(new RangeCare.with_vals([300..399], 90.0, null, null))
+ add_care(new UniqCare.with_vals(400, 90.0, null, null))
+ add_care(new UniqCare.with_vals(500, 90.0, null, 150.0.to_dollar))
+ add_care(new UniqCare.with_vals(600, 75.0, null, 300.0.to_dollar))
+ add_care(new UniqCare.with_vals(700, 90.0, null, null))
+ end
+end
+
+private class ContractD
+ super Contract
+
+ init do
+ kind = "D"
+ add_care(new UniqCare.with_vals(0, 100.0, 85.0.to_dollar, null))
+ add_care(new UniqCare.with_vals(100, 100.0, 75.0.to_dollar, 250.0.to_dollar))
+ add_care(new UniqCare.with_vals(150, 100.0, 150.0.to_dollar, null))
+ add_care(new UniqCare.with_vals(175, 95.0, null, 200.0.to_dollar))
+ add_care(new UniqCare.with_vals(200, 100.0, 100.0.to_dollar, 250.0.to_dollar))
+ add_care(new RangeCare.with_vals([300..399],100.0, null, null))
+ add_care(new UniqCare.with_vals(400, 100.0, 65.0.to_dollar, null))
+ add_care(new UniqCare.with_vals(500, 100.0, null, 150.0.to_dollar))
+ add_care(new UniqCare.with_vals(600, 100.0, 100.0.to_dollar, 300.0.to_dollar))
+ add_care(new UniqCare.with_vals(700, 100.0, 90.0.to_dollar, null))
+ end
+end
+
+private class ContractE
+ super Contract
+
+ init do
+ kind = "E"
+ add_care(new UniqCare.with_vals(0, 15.0, null, null))
+ add_care(new UniqCare.with_vals(100, 25.0, null, 250.0.to_dollar))
+ add_care(new UniqCare.with_vals(150, 15.0, null, null))
+ add_care(new UniqCare.with_vals(175, 25.0, 20.0.to_dollar, 200.0.to_dollar))
+ add_care(new UniqCare.with_vals(200, 12.0, null, 250.0.to_dollar))
+ add_care(new RangeCare.with_vals([300..399], 60.0, null, null))
+ add_care(new UniqCare.with_vals(400, 25.0, 15.0.to_dollar, null))
+ add_care(new UniqCare.with_vals(500, 30.0, 20.0.to_dollar, 150.0.to_dollar))
+ add_care(new UniqCare.with_vals(600, 15.0, null, 300.0.to_dollar))
+ add_care(new UniqCare.with_vals(700, 22.0, null, null))
+ end
+end
+
+# A `Care` is payed by the `Client` and can raises a `Refund`.
+interface Care
+
+ # Does `id` is acceptable for this care?
+ fun match_id(id: Int): Bool is abstract
+
+ # Percent covered for this kind of care.
+ fun cover: Float is abstract
+
+ # Max amount covered for this kind of care by reclamation.
+ fun max: nullable Dollar is abstract
+
+ # Max amount covered for this kind of care by month.
+ fun month_max: nullable Dollar is abstract
+
+ # Computes the refund for this care.
+ fun process_refund(fees: Dollar): Dollar do
+ var max = self.max
+ var val = ((fees.value.to_f * (cover / 100.0)) / 100.0).to_dollar
+ if max != null and val > max then val = max
+ return val
+ end
+end
+
+# A `UniqCare` refers to one and only one kind of `Care`.
+#
+# For example, the care `Ostéopathie` as the uniq id `200`.
+class UniqCare
+ super Care
+
+ # Care id.
+ var id: Int
+
+ redef fun match_id(id) do return self.id == id
+
+ redef var cover = 0.0
+ redef var max = null
+ redef var month_max = null
+
+ # Inits this `Care` with values.
+ #
+ # * `id`: the `Care` id.
+ # * `cover`: refund percentage covered for this `Care`.
+ # * `max`: max amount refunded for this `Care` in a reclamation sheet.
+ # * `month_max`: max amount refunded by month.
+ init with_vals(id: Int, cover: Float, max, month_max: nullable Dollar) do
+ self.id = id
+ self.cover = cover
+ self.max = max
+ self.month_max = month_max
+ end
+
+ redef fun to_s do return id.to_s
+end
+
+# A `RangeCare` refers to a set of id corresponding to the same `Care`.
+#
+# For example, the care `Soins Dentaires` is refered by the ids 300 to 399.
+class RangeCare
+ super Care
+
+ # Care id range.
+ var id: Range[Int]
+
+ redef fun match_id(id) do return self.id.has(id)
+ redef var cover = 0.0
+ redef var max = null
+ redef var month_max = null
+
+ # Inits this `Care` with values.
+ #
+ # * `id`: the `Care` id.
+ # * `cover`: refund percentage covered for this `Care`.
+ # * `max`: max amount refunded for this `Care` in a reclamation sheet.
+ # * `month_max`: max amount refunded by month.
+ init with_vals(id: Range[Int], cover: Float, max, month_max: nullable Dollar) do
+ self.id = id
+ self.cover = cover
+ self.max = max
+ self.month_max = month_max
+ end
+
+ redef fun to_s do return id.first.to_s
+end
+
+# Used to represent currencies values.
+class Dollar
+ super Comparable
+
+ redef type OTHER: Dollar
+
+ # Amount of cents.
+ var value: Int
+
+ # Inits `self` from a float `value`.
+ init from_float(value: Float) do
+ self.value = (value * 100.0).to_i
+ end
+
+ redef fun to_s do return "{value / 100}.{value % 100}$"
+ redef fun <(o) do return value < o.value
+
+ # Dollars addition.
+ fun +(o: Dollar): Dollar do return new Dollar(value + o.value)
+
+ # Dollars substraction.
+ fun -(o: Dollar): Dollar do return new Dollar(value - o.value)
+end
+
+redef class Float
+ # Returns `self` as a Dollar instance.
+ fun to_dollar: Dollar do return new Dollar.from_float(self)
+end
nitlanguage / nit.git / blobdiff