summaryrefslogtreecommitdiff
path: root/src/database_gourmet.cc
blob: e556440b7d61c2c4f97320415fed5c6a132ecb20 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
/* -*- c++ -*- */
/***************************************************************************
 *            database_gourmet.cc
 *
 *  Sun Apr 24 18:27:56 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_gourmet.h"

#include <sqlite3.h>
#include <iostream>

// https://www.tutorialspoint.com/sqlite/sqlite_c_cpp.htm

DatabaseGourmet::DatabaseGourmet(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";
	}
}

DatabaseGourmet::~DatabaseGourmet()
{
	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> DatabaseGourmet::getRecipes()
{
	std::deque<RecipeItem> items;

	std::string sql = "select id, title, image from recipe";
	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 DatabaseGourmet::getRecipe(std::uint64_t id)
{
	bool found{false};
	Recipe recipe;

	{
		std::string sql =
			"select id, title, description, image, instructions, source, link, cuisine, cooktime, preptime, yields, yield_unit, modifications from recipe 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 = getString(statement, 2);
				recipe.image = getString(statement, 3);
				recipe.instructions = getString(statement, 4);
				recipe.source = getString(statement, 5);
				if(!recipe.source.empty())
				{
					recipe.source += " ";
				}
				recipe.source += getString(statement, 6);
				recipe.cuisine = getString(statement, 7);
				recipe.cooktime = sqlite3_column_int(statement, 8);
				recipe.preptime = sqlite3_column_int(statement, 9);
				recipe.yields = sqlite3_column_double(statement, 10);
				recipe.yield_unit = getString(statement, 11);
				recipe.tags.push_back(getString(statement, 12));
			}
			else
			{
				break;
			}
			found = true;
		}
	}

	if(!found)
	{
		std::cerr << "id " << id << " not found\n";
		return {};
	}

	{
		std::string sql =
			"select amount, unit, item from ingredients where recipe_id=" +
			std::to_string(id) + " order by position 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.amount = sqlite3_column_double(statement, 0);
				ingredient.unit = getString(statement, 1);
				ingredient.item = getString(statement, 2);
				recipe.ingredients.push_back(ingredient);
			}
			else
			{
				break;
			}
		}
	}

	return recipe;
}