From fa3595d69f817ad1a67b7189ed65dbde1ba9f77d Mon Sep 17 00:00:00 2001
From: Fuwn <contact@fuwn.me>
Date: Sun, 26 May 2024 18:01:25 -0700
Subject: feat: initial commit

---
 source/book.cc   | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 source/main.cc   |  99 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 source/member.cc |  23 +++++++++++++
 source/person.cc |  43 +++++++++++++++++++++++
 source/random.cc |  87 +++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 354 insertions(+)
 create mode 100644 source/book.cc
 create mode 100644 source/main.cc
 create mode 100644 source/member.cc
 create mode 100644 source/person.cc
 create mode 100644 source/random.cc

(limited to 'source')

diff --git a/source/book.cc b/source/book.cc
new file mode 100644
index 0000000..6b0bd6a
--- /dev/null
+++ b/source/book.cc
@@ -0,0 +1,102 @@
+#include <cstddef>
+#include <ostream>
+#include <string_view>
+#include <utility>
+#include <vector>
+
+#include <book_store/book.hh>
+#include <book_store/person.hh>
+#include <book_store/price.hh>
+
+namespace book_store::product {
+using namespace consumer;
+
+auto book::title() const noexcept -> std::string_view { return this->_title; }
+
+auto book::authors() const noexcept -> std::vector<class person> {
+  return this->_authors;
+}
+
+auto book::publisher() const noexcept -> std::string_view {
+  return this->_publisher;
+}
+
+auto book::isbn() const noexcept -> std::string_view { return this->_isbn; }
+
+auto book::price_usd() const noexcept -> price::usd { return this->_price_usd; }
+
+auto book::copies() const noexcept -> book::size_type { return this->_copies; }
+
+auto book::title(std::string_view title) noexcept -> book & {
+  this->_title = title;
+
+  return *this;
+}
+
+auto book::authors(std::vector<class person> authors) -> book & {
+  this->_authors = std::move(authors);
+
+  return *this;
+}
+
+auto book::author(const class person &author) -> book & {
+  while (this->_authors.size() < 4) {
+    this->_authors.emplace_back(author);
+
+    break;
+  }
+
+  return *this;
+}
+
+auto book::remove_author_by_id(std::size_t author_id) -> book & {
+  this->_authors.erase(
+      this->_authors.begin() +
+      static_cast<std::vector<class person>::difference_type>(author_id));
+
+  return *this;
+}
+
+auto book::publisher(std::string_view publisher) noexcept -> book & {
+  this->_publisher = publisher;
+
+  return *this;
+}
+
+auto book::isbn(std::string_view isbn) noexcept -> book & {
+  this->_isbn = isbn;
+
+  return *this;
+}
+
+auto book::price_usd(price::usd price) noexcept -> book & {
+  this->_price_usd = price;
+
+  return *this;
+}
+
+auto book::copies(book::size_type copies) noexcept -> book & {
+  this->_copies = copies;
+
+  return *this;
+}
+
+auto operator<<(std::ostream &output_stream, const book &book)
+    -> std::ostream & {
+  output_stream << "Title: " << book._title << '\n';
+  output_stream << "Authors: ";
+
+  for (const auto &author : book._authors) {
+    output_stream << author.full_name()
+                  << ((&author == &book._authors.back()) ? "" : ", ");
+  }
+
+  output_stream << '\n';
+  output_stream << "Publisher: " << book._publisher << '\n';
+  output_stream << "ISBN: " << book._isbn << '\n';
+  output_stream << "Price: $" << book._price_usd << '\n';
+  output_stream << "Copies: " << book._copies << '\n';
+
+  return output_stream;
+}
+} // namespace book_store::product
diff --git a/source/main.cc b/source/main.cc
new file mode 100644
index 0000000..5d262f7
--- /dev/null
+++ b/source/main.cc
@@ -0,0 +1,99 @@
+#include <algorithm>
+#include <array>
+#include <cstdlib>
+#include <exception>
+#include <iostream>
+#include <random>
+#include <ranges>
+#include <string>
+#include <string_view>
+
+#include <book_store/book.hh>
+#include <book_store/member.hh>
+#include <book_store/random.hh>
+
+auto main() -> int {
+  using namespace book_store;
+
+  std::array<product::book, 100> books;
+  std::array<std::string, 100> book_titles;
+  std::array<consumer::member, 100> members;
+  std::array<std::size_t, 100> member_ids;
+  std::mt19937 random_number_generator(std::random_device{}());
+  utility::random::book_random_engine random(random_number_generator);
+  auto perform = [](std::string_view name, auto action) {
+    std::cout << name << " ...";
+
+    action();
+
+    std::cout << " ok.\n";
+  };
+  auto clear_cerr = []() {
+    if (!std::cerr.good()) {
+      std::cerr.clear();
+    }
+  };
+
+  perform("populating books and book_titles", [&]() {
+    for (auto [index, book] : std::ranges::views::enumerate(books)) {
+      auto random_title = random.title();
+
+      book_titles[static_cast<std::size_t>(index)] = random_title;
+      book =
+          product::book{random_title,  random.authors(),   random.publisher(),
+                        random.isbn(), random.price_usd(), random.copy_count()};
+    }
+  });
+  perform("verifying all books are present", [&]() {
+    for (const auto &title : book_titles) {
+      if (std::ranges::find(book_titles, title) == book_titles.end()) {
+        clear_cerr();
+
+        std::cerr << "error: title not found" << '\n';
+
+        std::terminate();
+      }
+    }
+  });
+  perform("verifying book copy count increment", [&]() {
+    for (int i = 0; i < 100; ++i) {
+      auto &book = books[std::uniform_int_distribution<std::size_t>(
+          0, books.size() - 1)(random_number_generator)];
+      auto copy_count = book.copies();
+      auto random_copy_count = static_cast<product::book::size_type>(
+          std::uniform_int_distribution<std::size_t>(0, 100)(
+              random_number_generator));
+
+      book.copies(copy_count + random_copy_count);
+
+      if (book.copies() != copy_count + random_copy_count) {
+        clear_cerr();
+
+        std::cerr << "error: invalid copy count after increment" << '\n';
+
+        std::terminate();
+      }
+    }
+  });
+  perform("populating members and member_ids", [&]() {
+    for (auto [index, member] : std::views::enumerate(members)) {
+      auto random_name = random.name();
+      auto random_surname = random.name();
+      auto random_id = random.id();
+
+      member_ids[static_cast<std::size_t>(index)] = random_id;
+      member = consumer::member{random_name, random_surname, random_id};
+    }
+  });
+  perform("verifying all members are present", [&]() {
+    for (auto member_id : member_ids) {
+      if (std::ranges::find(member_ids, member_id) == member_ids.end()) {
+        std::cerr << "error: id not found" << '\n';
+
+        std::terminate();
+      }
+    }
+  });
+
+  return 0;
+}
diff --git a/source/member.cc b/source/member.cc
new file mode 100644
index 0000000..0e8a41c
--- /dev/null
+++ b/source/member.cc
@@ -0,0 +1,23 @@
+#include <book_store/book.hh>
+#include <book_store/member.hh>
+#include <book_store/price.hh>
+
+namespace book_store::consumer {
+using namespace product;
+
+auto member::books_bought() const noexcept -> book::size_type {
+  return this->_books_bought;
+}
+
+auto member::amount_spent() const noexcept -> price::usd {
+  return this->_amount_spent;
+}
+
+auto member::books_bought(book::size_type books_bought) noexcept -> void {
+  this->_books_bought = books_bought;
+}
+
+auto member::amount_spent(price::usd amount_spent) noexcept -> void {
+  this->_amount_spent = amount_spent;
+}
+} // namespace book_store::consumer
diff --git a/source/person.cc b/source/person.cc
new file mode 100644
index 0000000..e80e6df
--- /dev/null
+++ b/source/person.cc
@@ -0,0 +1,43 @@
+#include <cstddef>
+#include <string>
+#include <string_view>
+
+#include <book_store/person.hh>
+
+namespace book_store::consumer {
+auto person::last_name() const noexcept -> std::string_view {
+  return this->_last_name;
+}
+
+auto person::first_name() const noexcept -> std::string_view {
+  return this->_first_name;
+}
+
+auto person::full_name(bool last_first) const noexcept -> std::string {
+  if (last_first) {
+    return this->_last_name + ", " + this->_first_name;
+  }
+
+  return this->_first_name + " " + this->_last_name;
+}
+
+auto person::id() const noexcept -> std::size_t { return this->_id; }
+
+auto person::last_name(std::string_view last_name) noexcept -> person & {
+  this->_last_name = last_name;
+
+  return *this;
+}
+
+auto person::first_name(std::string_view first_name) noexcept -> person & {
+  this->_first_name = first_name;
+
+  return *this;
+}
+
+auto person::id(std::size_t person_id) noexcept -> person & {
+  this->_id = person_id;
+
+  return *this;
+}
+} // namespace book_store::consumer
diff --git a/source/random.cc b/source/random.cc
new file mode 100644
index 0000000..d237b9f
--- /dev/null
+++ b/source/random.cc
@@ -0,0 +1,87 @@
+#include <cstddef>
+#include <random>
+#include <string>
+#include <vector>
+
+#include <book_store/book.hh>
+#include <book_store/person.hh>
+#include <book_store/random.hh>
+
+namespace book_store::utility::random {
+auto book_random_engine::title() -> std::string {
+  static std::uniform_int_distribution<> distrubtion{0, 49};
+  std::string book_name;
+
+  for (int i = 0; i < 3; ++i) {
+    book_name += book_title_parts[static_cast<std::size_t>(
+        distrubtion(this->_random_number_generator))];
+    book_name += ' ';
+  }
+
+  book_name.pop_back();
+
+  return book_name;
+}
+
+auto book_random_engine::name() -> std::string {
+  static std::uniform_int_distribution<> distrubtion{0, 49};
+
+  return std::string(names[static_cast<std::size_t>(
+      distrubtion(this->_random_number_generator))]);
+}
+
+auto book_random_engine::author() -> consumer::person {
+  return consumer::person{this->name(), this->name(), this->id()};
+}
+
+auto book_random_engine::authors() -> std::vector<consumer::person> {
+  std::vector<consumer::person> authors;
+  static std::uniform_int_distribution<> distrubtion{1, 4};
+  auto author_count = distrubtion(this->_random_number_generator);
+
+  authors.reserve(static_cast<std::size_t>(author_count));
+
+  for (int i = 0; i < author_count; ++i) {
+    authors.push_back(this->author());
+  }
+
+  return authors;
+}
+
+auto book_random_engine::publisher() -> std::string {
+  static std::uniform_int_distribution<> distrubtion{0, 9};
+
+  return std::string(publishers[static_cast<std::size_t>(
+      distrubtion(this->_random_number_generator))]);
+}
+
+auto book_random_engine::isbn() -> std::string {
+  static std::uniform_int_distribution<> distrubtion{0, 9};
+  std::string isbn;
+
+  for (int i = 0; i < 13; ++i) {
+    isbn += std::to_string(distrubtion(this->_random_number_generator));
+  }
+
+  return isbn;
+}
+
+auto book_random_engine::price_usd() -> double {
+  static std::uniform_real_distribution<> distrubtion{0.0, 100.0};
+
+  return distrubtion(this->_random_number_generator);
+}
+
+auto book_random_engine::copy_count() -> product::book::size_type {
+  static std::uniform_int_distribution<> distrubtion{0, 10000};
+
+  return static_cast<product::book::size_type::book_count_type>(
+      distrubtion(this->_random_number_generator));
+}
+
+auto book_random_engine::id() -> std::size_t {
+  static std::uniform_int_distribution<> distrubtion{0, 1000000};
+
+  return static_cast<std::size_t>(distrubtion(this->_random_number_generator));
+}
+} // namespace book_store::utility::random
-- 
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