Yoda 0.9.2

Browser for Gemini Protocol
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

use sqlite::{Connection, Error, Transaction};
use std::{rc::Rc, sync::RwLock};

pub struct Table {
    pub id: i64,
    pub profile_identity_gemini_id: i64,
    pub scope: String,
}

/// Storage for `profile_identity_gemini_id` + `scope` auth pairs
pub struct Database {
    connection: Rc<RwLock<Connection>>,
}

impl Database {
    // Constructors

    /// Create new `Self`
    pub fn new(connection: Rc<RwLock<Connection>>) -> Self {
        Self { connection }
    }

    // Actions

    /// Create new record in database
    pub fn add(&self, profile_identity_gemini_id: i64, scope: &str) -> Result<i64, Error> {
        // Begin new transaction
        let mut writable = self.connection.write().unwrap(); // @TODO
        let tx = writable.transaction()?;

        // Create new record
        insert(&tx, profile_identity_gemini_id, scope)?;

        // Hold insert ID for result
        let id = last_insert_id(&tx);

        // Done
        match tx.commit() {
            Ok(_) => Ok(id),
            Err(e) => Err(e),
        }
    }

    /// Delete record with given `id` from database
    pub fn delete(&self, id: i64) -> Result<(), Error> {
        // Begin new transaction
        let mut writable = self.connection.write().unwrap(); // @TODO
        let tx = writable.transaction()?;

        // Create new record
        delete(&tx, id)?;

        // Done
        match tx.commit() {
            Ok(_) => Ok(()),
            Err(e) => Err(e),
        }
    }

    // Getters

    /// Get records from database match current `profile_id` optionally filtered by `scope`
    pub fn records_scope(&self, scope: Option<&str>) -> Result<Vec<Table>, Error> {
        let readable = self.connection.read().unwrap(); // @TODO
        let tx = readable.unchecked_transaction()?;
        select_scope(&tx, scope)
    }

    /// Get records from database match current `profile_id` optionally filtered by `scope`
    pub fn records_ref(&self, profile_identity_gemini_id: i64) -> Result<Vec<Table>, Error> {
        let readable = self.connection.read().unwrap(); // @TODO
        let tx = readable.unchecked_transaction()?;
        select_ref(&tx, profile_identity_gemini_id)
    }
}

// Low-level DB API

pub fn init(tx: &Transaction) -> Result<usize, Error> {
    tx.execute(
        "CREATE TABLE IF NOT EXISTS `profile_identity_gemini_auth`
        (
            `id`                         INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
            `profile_identity_gemini_id` INTEGER NOT NULL,
            `scope`                      VARCHAR(1024) NOT NULL,

            FOREIGN KEY (`profile_identity_gemini_id`) REFERENCES `profile_identity_gemini`(`id`),
            UNIQUE (`scope`)
        )",
        [],
    )
}

pub fn insert(
    tx: &Transaction,
    profile_identity_gemini_id: i64,
    scope: &str,
) -> Result<usize, Error> {
    tx.execute(
        "INSERT INTO `profile_identity_gemini_auth` (
            `profile_identity_gemini_id`,
            `scope`
        ) VALUES (?, ?)",
        (profile_identity_gemini_id, scope),
    )
}

pub fn delete(tx: &Transaction, id: i64) -> Result<usize, Error> {
    tx.execute(
        "DELETE FROM `profile_identity_gemini_auth` WHERE `id` = ?",
        [id],
    )
}

pub fn select_scope(tx: &Transaction, scope: Option<&str>) -> Result<Vec<Table>, Error> {
    let mut stmt = tx.prepare(
        "SELECT `id`,
                `profile_identity_gemini_id`,
                `scope`

                FROM `profile_identity_gemini_auth`
                WHERE `scope` LIKE ?",
    )?;

    let result = stmt.query_map([scope.unwrap_or("%")], |row| {
        Ok(Table {
            id: row.get(0)?,
            profile_identity_gemini_id: row.get(1)?,
            scope: row.get(2)?,
        })
    })?;

    let mut records = Vec::new();

    for record in result {
        let table = record?;
        records.push(table);
    }

    Ok(records)
}

pub fn select_ref(tx: &Transaction, profile_identity_gemini_id: i64) -> Result<Vec<Table>, Error> {
    let mut stmt = tx.prepare(
        "SELECT `id`,
                `profile_identity_gemini_id`,
                `scope`

                FROM `profile_identity_gemini_auth`
                WHERE `profile_identity_gemini_id` = ?",
    )?;

    let result = stmt.query_map([profile_identity_gemini_id], |row| {
        Ok(Table {
            id: row.get(0)?,
            profile_identity_gemini_id: row.get(1)?,
            scope: row.get(2)?,
        })
    })?;

    let mut records = Vec::new();

    for record in result {
        let table = record?;
        records.push(table);
    }

    Ok(records)
}

pub fn last_insert_id(tx: &Transaction) -> i64 {
    tx.last_insert_rowid()
}