sql_cli/sql/generators/
mod.rs

1use crate::data::datatable::{DataColumn, DataRow, DataTable, DataValue};
2use anyhow::Result;
3use std::sync::Arc;
4
5pub mod ascii_art;
6pub mod file_readers;
7pub mod literal_generators;
8pub mod math_generators;
9pub mod prime_generators;
10pub mod random_generators;
11pub mod sequence_generators;
12pub mod string_generators;
13
14/// Trait for table-generating functions that produce rows dynamically
15pub trait TableGenerator: Send + Sync {
16    /// Get the name of the generator function (e.g., "GENERATE_PRIMES")
17    fn name(&self) -> &str;
18
19    /// Get the column definitions for the generated table
20    fn columns(&self) -> Vec<DataColumn>;
21
22    /// Generate the table based on the provided arguments
23    /// Arguments are evaluated expressions from the SQL query
24    fn generate(&self, args: Vec<DataValue>) -> Result<Arc<DataTable>>;
25
26    /// Get a description of what this generator does
27    fn description(&self) -> &str;
28
29    /// Get the expected number of arguments
30    fn arg_count(&self) -> usize;
31}
32
33/// Registry for table generator functions
34pub struct GeneratorRegistry {
35    generators: std::collections::HashMap<String, Box<dyn TableGenerator>>,
36}
37
38impl GeneratorRegistry {
39    pub fn new() -> Self {
40        let mut registry = Self {
41            generators: std::collections::HashMap::new(),
42        };
43        registry.register_default_generators();
44        registry
45    }
46
47    fn register_default_generators(&mut self) {
48        use ascii_art::{AsciiArt, Banner, BigText};
49        use file_readers::{Grep, ReadText};
50        use literal_generators::{Array, Values};
51        use math_generators::{Collatz, Factorials, PascalTriangle, Squares, TriangularNumbers};
52        use prime_generators::{Fibonacci, GeneratePrimes, PrimeFactors};
53        use random_generators::{GenerateUUIDs, RandomFloats, RandomIntegers};
54        use sequence_generators::{Dates, Range, Series};
55        use string_generators::{Chars, Lines, Split, Tokenize};
56
57        // Literal value generators
58        self.register(Box::new(Values));
59        self.register(Box::new(Array));
60
61        // Sequence generators
62        self.register(Box::new(Range));
63        self.register(Box::new(Series));
64        self.register(Box::new(Dates));
65
66        // String generators
67        self.register(Box::new(Split));
68        self.register(Box::new(Tokenize));
69        self.register(Box::new(Chars));
70        self.register(Box::new(Lines));
71
72        // File readers
73        self.register(Box::new(ReadText));
74        self.register(Box::new(Grep));
75
76        // Prime and number theory generators
77        self.register(Box::new(GeneratePrimes));
78        self.register(Box::new(PrimeFactors));
79        self.register(Box::new(Fibonacci));
80
81        // Mathematical sequence generators
82        self.register(Box::new(Collatz));
83        self.register(Box::new(PascalTriangle));
84        self.register(Box::new(TriangularNumbers));
85        self.register(Box::new(Squares));
86        self.register(Box::new(Factorials));
87
88        // Random generators
89        self.register(Box::new(RandomIntegers));
90        self.register(Box::new(RandomFloats));
91        self.register(Box::new(GenerateUUIDs));
92
93        // ASCII Art generators
94        self.register(Box::new(AsciiArt));
95        self.register(Box::new(BigText));
96        self.register(Box::new(Banner));
97    }
98
99    pub fn register(&mut self, generator: Box<dyn TableGenerator>) {
100        self.generators
101            .insert(generator.name().to_uppercase(), generator);
102    }
103
104    pub fn get(&self, name: &str) -> Option<&Box<dyn TableGenerator>> {
105        self.generators.get(&name.to_uppercase())
106    }
107
108    pub fn list(&self) -> Vec<&str> {
109        let mut names: Vec<&str> = self.generators.keys().map(|s| s.as_str()).collect();
110        names.sort();
111        names
112    }
113
114    pub fn list_generators_formatted(&self) -> String {
115        let mut output = String::new();
116        output.push_str("=== Available Generator Functions ===\n\n");
117
118        // Group generators by category
119        let mut sequence_gens = Vec::new();
120        let mut string_gens = Vec::new();
121        let mut math_gens = Vec::new();
122        let mut random_gens = Vec::new();
123        let mut utility_gens = Vec::new();
124        let mut ascii_gens = Vec::new();
125
126        for (name, gen) in &self.generators {
127            let entry = format!("  {} - {}", name, gen.description());
128
129            if name == "RANGE" || name == "SERIES" || name == "DATES" {
130                sequence_gens.push(entry);
131            } else if name == "SPLIT" || name == "TOKENIZE" || name == "CHARS" || name == "LINES" {
132                string_gens.push(entry);
133            } else if name == "ASCII_ART" || name == "BIG_TEXT" || name == "BANNER" {
134                ascii_gens.push(entry);
135            } else if name.starts_with("RANDOM_") {
136                random_gens.push(entry);
137            } else if name == "GENERATE_UUID" {
138                utility_gens.push(entry);
139            } else {
140                math_gens.push(entry);
141            }
142        }
143
144        if !sequence_gens.is_empty() {
145            sequence_gens.sort();
146            output.push_str("Sequence Generators:\n");
147            for entry in sequence_gens {
148                output.push_str(&format!("{}\n", entry));
149            }
150            output.push('\n');
151        }
152
153        if !string_gens.is_empty() {
154            string_gens.sort();
155            output.push_str("String Generators:\n");
156            for entry in string_gens {
157                output.push_str(&format!("{}\n", entry));
158            }
159            output.push('\n');
160        }
161
162        if !math_gens.is_empty() {
163            math_gens.sort();
164            output.push_str("Mathematical Generators:\n");
165            for entry in math_gens {
166                output.push_str(&format!("{}\n", entry));
167            }
168            output.push('\n');
169        }
170
171        if !random_gens.is_empty() {
172            random_gens.sort();
173            output.push_str("Random Generators:\n");
174            for entry in random_gens {
175                output.push_str(&format!("{}\n", entry));
176            }
177            output.push('\n');
178        }
179
180        if !ascii_gens.is_empty() {
181            ascii_gens.sort();
182            output.push_str("ASCII Art Generators:\n");
183            for entry in ascii_gens {
184                output.push_str(&format!("{}\n", entry));
185            }
186            output.push('\n');
187        }
188
189        if !utility_gens.is_empty() {
190            utility_gens.sort();
191            output.push_str("Utility Generators:\n");
192            for entry in utility_gens {
193                output.push_str(&format!("{}\n", entry));
194            }
195            output.push('\n');
196        }
197
198        output.push_str("Use: SELECT * FROM <generator>(<args>)\n");
199        output.push_str("Example: SELECT * FROM GENERATE_PRIMES(100)\n");
200        output
201    }
202
203    pub fn get_generator_help(&self, name: &str) -> Option<String> {
204        self.generators.get(&name.to_uppercase()).map(|gen| {
205            let mut help = String::new();
206            help.push_str(&format!("=== {} ===\n\n", name.to_uppercase()));
207            help.push_str(&format!("Description: {}\n", gen.description()));
208            help.push_str(&format!(
209                "Arguments: {} argument(s) expected\n",
210                gen.arg_count()
211            ));
212            help.push_str("\nColumns:\n");
213            for col in gen.columns() {
214                help.push_str(&format!("  - {}\n", col.name));
215            }
216            help.push_str("\nExample:\n");
217            help.push_str(&format!("  SELECT * FROM {}(", name.to_uppercase()));
218
219            // Add example arguments based on the generator
220            match name.to_uppercase().as_str() {
221                "GENERATE_PRIMES" => help.push_str("100"),
222                "FIBONACCI" => help.push_str("20"),
223                "PRIME_FACTORS" => help.push_str("1260"),
224                "COLLATZ" => help.push_str("7"),
225                "PASCAL_TRIANGLE" => help.push_str("5"),
226                "TRIANGULAR" | "SQUARES" | "FACTORIALS" => help.push_str("10"),
227                "RANDOM_INT" => help.push_str("10, 1, 100, 42"),
228                "RANDOM_FLOAT" => help.push_str("10, 0, 1, 42"),
229                "GENERATE_UUID" => help.push_str("5"),
230                "ASCII_ART" | "BIG_TEXT" => help.push_str("'SQL-CLI'"),
231                "BANNER" => help.push_str("'HELLO', '*'"),
232                _ => help.push_str("..."),
233            }
234            help.push_str(");\n");
235            help
236        })
237    }
238}
239
240/// Helper function to create a single-column table
241pub fn create_single_column_table(
242    name: &str,
243    column_name: &str,
244    values: Vec<DataValue>,
245) -> Arc<DataTable> {
246    let mut table = DataTable::new(name);
247    table.add_column(DataColumn::new(column_name));
248
249    for value in values {
250        table.add_row(DataRow::new(vec![value])).unwrap();
251    }
252
253    Arc::new(table)
254}
255
256/// Helper function to create a two-column table
257pub fn create_two_column_table(
258    name: &str,
259    col1_name: &str,
260    col2_name: &str,
261    rows: Vec<(DataValue, DataValue)>,
262) -> Arc<DataTable> {
263    let mut table = DataTable::new(name);
264    table.add_column(DataColumn::new(col1_name));
265    table.add_column(DataColumn::new(col2_name));
266
267    for (val1, val2) in rows {
268        table.add_row(DataRow::new(vec![val1, val2])).unwrap();
269    }
270
271    Arc::new(table)
272}
sql_cli/sql/generators/mod.rs

sql_cli/sql/generators/
mod.rs
