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+/* -*- c++ -*- */
+/***************************************************************************
+ * database_krecipes.cc
+ *
+ * Sun Apr 24 18:28:00 CEST 2022
+ * Copyright 2022 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of Qookie.
+ *
+ * Qookie is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Qookie is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Qookie; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "database_krecipes.h"
+
+#include <sqlite3.h>
+#include <iostream>
+
+// https://www.tutorialspoint.com/sqlite/sqlite_c_cpp.htm
+
+DatabaseKrecipes::DatabaseKrecipes(const std::string& file)
+{
+ auto rc = sqlite3_open(file.data(), &db); // https://sqlite.org/c3ref/open.html
+ if(rc)
+ {
+ std::cerr << "Can't open database: " << sqlite3_errmsg(db) << '\n';
+ return;
+ }
+ else
+ {
+ std::cout << "Opened database successfully\n";
+ }
+}
+
+DatabaseKrecipes::~DatabaseKrecipes()
+{
+ sqlite3_close(db);
+}
+
+namespace
+{
+std::string getString(sqlite3_stmt *statement, int index)
+{
+ int size = sqlite3_column_bytes(statement, index);
+ std::string str;
+ str.append((const char*)sqlite3_column_blob(statement, index), size);
+ return str;
+}
+} // ::
+
+std::deque<RecipeItem> DatabaseKrecipes::getRecipes()
+{
+ std::deque<RecipeItem> items;
+
+ std::string sql = "select id, title, photo from recipes";
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ RecipeItem item;
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ item.id = sqlite3_column_int(statement, 0);
+
+ item.title = getString(statement, 1);
+ item.image = getString(statement, 2);
+ }
+ else
+ {
+ break;
+ }
+ items.push_back(item);
+ }
+
+ return items;
+}
+
+Recipe DatabaseKrecipes::getRecipe(std::uint64_t id)
+{
+ bool found{false};
+ Recipe recipe;
+
+ {
+ std::string sql =
+ "select id, title, photo, instructions, prep_time, yield_amount, yield_type_id from recipes where id=" +
+ std::to_string(id);
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ recipe.id = sqlite3_column_int(statement, 0);
+ recipe.title = getString(statement, 1);
+ recipe.description = {}; // not used by krecipes
+ recipe.image = getString(statement, 2);
+ recipe.instructions = getString(statement, 3);
+ recipe.source = {}; // set later
+ recipe.cuisine = {}; // not used by krecipes
+ recipe.cooktime = {}; // not used by krecipes
+ recipe.preptime = 0;
+ std::string duration = getString(statement, 4); // "hh:mm:ss" format
+ try
+ {
+ int h = std::stoi(duration.substr(0, 2));
+ int m = std::stoi(duration.substr(3, 2));
+ int s = std::stoi(duration.substr(6, 2));
+ recipe.preptime = s + m * 60 + h * 60 * 60;
+ }
+ catch(...)
+ {
+ }
+ recipe.yields = sqlite3_column_double(statement, 5);
+ recipe.yield_unit = getString(statement, 6); // indirection set later
+ recipe.tags.push_back("N/A"); // not used by krecipes
+ }
+ else
+ {
+ break;
+ }
+ found = true;
+ }
+ }
+
+ if(!found)
+ {
+ std::cerr << "id " << id << " not found\n";
+ return {};
+ }
+
+ //
+ // Get auhors list
+ //
+ {
+ std::string sql =
+ "select author_id from author_list where recipe_id=" +
+ std::to_string(id);
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ int author_id = sqlite3_column_int(statement, 0);
+ {
+ std::string sql =
+ "select name from authors where id=" + std::to_string(author_id);
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ if(!recipe.source.empty())
+ {
+ recipe.source += ", ";
+ }
+ recipe.source += getString(statement, 0);
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+
+ //
+ // Get yield unit
+ //
+ {
+ std::string sql =
+ "select name from yield_types where id=" + recipe.yield_unit;
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ recipe.yield_unit = getString(statement, 0);
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+ if(recipe.yield_unit == "-1")
+ {
+ recipe.yield_unit = "";
+ }
+
+ //
+ // Get ingredients
+ //
+ {
+ std::string sql =
+ "select ingredient_id, amount, unit_id, group_id from ingredient_list where recipe_id=" + std::to_string(id) + " order by order_index asc";
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ Ingredient ingredient;
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ ingredient.item = getString(statement, 0);
+ ingredient.amount = sqlite3_column_double(statement, 1);
+ ingredient.unit = getString(statement, 2);
+
+ //
+ // Get ingredient name
+ //
+ {
+ std::string sql =
+ "select name from ingredients where id=" + ingredient.item;
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ ingredient.item = getString(statement, 0);
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+
+ //
+ // Get ingredient amount unit
+ //
+ {
+ std::string sql =
+ "select name from units where id=" + ingredient.unit;
+ sqlite3_stmt *statement;
+ if(sqlite3_prepare_v2(db, sql.data(), sql.length(), &statement, 0) != SQLITE_OK)
+ {
+ std::cerr << "sqlite3_prepare_v2 failed: " << sqlite3_errmsg(db) << '\n';
+ return {};
+ }
+
+ int result = 0;
+ while(true)
+ {
+ result = sqlite3_step(statement);
+
+ if(result == SQLITE_ROW)
+ {
+ ingredient.unit = getString(statement, 0);
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+
+ recipe.ingredients.push_back(ingredient);
+ }
+ else
+ {
+ break;
+ }
+ }
+ }
+
+ return recipe;
+}
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