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, ReadWords};
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(ReadWords));
75        self.register(Box::new(Grep));
76
77        // Prime and number theory generators
78        self.register(Box::new(GeneratePrimes));
79        self.register(Box::new(PrimeFactors));
80        self.register(Box::new(Fibonacci));
81
82        // Mathematical sequence generators
83        self.register(Box::new(Collatz));
84        self.register(Box::new(PascalTriangle));
85        self.register(Box::new(TriangularNumbers));
86        self.register(Box::new(Squares));
87        self.register(Box::new(Factorials));
88
89        // Random generators
90        self.register(Box::new(RandomIntegers));
91        self.register(Box::new(RandomFloats));
92        self.register(Box::new(GenerateUUIDs));
93
94        // ASCII Art generators
95        self.register(Box::new(AsciiArt));
96        self.register(Box::new(BigText));
97        self.register(Box::new(Banner));
98    }
99
100    pub fn register(&mut self, generator: Box<dyn TableGenerator>) {
101        self.generators
102            .insert(generator.name().to_uppercase(), generator);
103    }
104
105    pub fn get(&self, name: &str) -> Option<&Box<dyn TableGenerator>> {
106        self.generators.get(&name.to_uppercase())
107    }
108
109    pub fn list(&self) -> Vec<&str> {
110        let mut names: Vec<&str> = self.generators.keys().map(|s| s.as_str()).collect();
111        names.sort();
112        names
113    }
114
115    pub fn list_generators_formatted(&self) -> String {
116        let mut output = String::new();
117        output.push_str("=== Available Generator Functions ===\n\n");
118
119        // Group generators by category
120        let mut sequence_gens = Vec::new();
121        let mut string_gens = Vec::new();
122        let mut file_gens = Vec::new();
123        let mut math_gens = Vec::new();
124        let mut random_gens = Vec::new();
125        let mut utility_gens = Vec::new();
126        let mut ascii_gens = Vec::new();
127
128        for (name, gen) in &self.generators {
129            let entry = format!("  {} - {}", name, gen.description());
130
131            if name == "RANGE" || name == "SERIES" || name == "DATES" {
132                sequence_gens.push(entry);
133            } else if name == "SPLIT" || name == "TOKENIZE" || name == "CHARS" || name == "LINES" {
134                string_gens.push(entry);
135            } else if name == "READ_TEXT" || name == "READ_WORDS" || name == "GREP" {
136                file_gens.push(entry);
137            } else if name == "ASCII_ART" || name == "BIG_TEXT" || name == "BANNER" {
138                ascii_gens.push(entry);
139            } else if name.starts_with("RANDOM_") {
140                random_gens.push(entry);
141            } else if name == "GENERATE_UUID" {
142                utility_gens.push(entry);
143            } else {
144                math_gens.push(entry);
145            }
146        }
147
148        if !sequence_gens.is_empty() {
149            sequence_gens.sort();
150            output.push_str("Sequence Generators:\n");
151            for entry in sequence_gens {
152                output.push_str(&format!("{}\n", entry));
153            }
154            output.push('\n');
155        }
156
157        if !string_gens.is_empty() {
158            string_gens.sort();
159            output.push_str("String Generators:\n");
160            for entry in string_gens {
161                output.push_str(&format!("{}\n", entry));
162            }
163            output.push('\n');
164        }
165
166        if !file_gens.is_empty() {
167            file_gens.sort();
168            output.push_str("File Readers:\n");
169            for entry in file_gens {
170                output.push_str(&format!("{}\n", entry));
171            }
172            output.push('\n');
173        }
174
175        if !math_gens.is_empty() {
176            math_gens.sort();
177            output.push_str("Mathematical Generators:\n");
178            for entry in math_gens {
179                output.push_str(&format!("{}\n", entry));
180            }
181            output.push('\n');
182        }
183
184        if !random_gens.is_empty() {
185            random_gens.sort();
186            output.push_str("Random Generators:\n");
187            for entry in random_gens {
188                output.push_str(&format!("{}\n", entry));
189            }
190            output.push('\n');
191        }
192
193        if !ascii_gens.is_empty() {
194            ascii_gens.sort();
195            output.push_str("ASCII Art Generators:\n");
196            for entry in ascii_gens {
197                output.push_str(&format!("{}\n", entry));
198            }
199            output.push('\n');
200        }
201
202        if !utility_gens.is_empty() {
203            utility_gens.sort();
204            output.push_str("Utility Generators:\n");
205            for entry in utility_gens {
206                output.push_str(&format!("{}\n", entry));
207            }
208            output.push('\n');
209        }
210
211        output.push_str("Use: SELECT * FROM <generator>(<args>)\n");
212        output.push_str("Example: SELECT * FROM GENERATE_PRIMES(100)\n");
213        output
214    }
215
216    pub fn get_generator_help(&self, name: &str) -> Option<String> {
217        self.generators.get(&name.to_uppercase()).map(|gen| {
218            let mut help = String::new();
219            help.push_str(&format!("=== {} ===\n\n", name.to_uppercase()));
220            help.push_str(&format!("Description: {}\n", gen.description()));
221            help.push_str(&format!(
222                "Arguments: {} argument(s) expected\n",
223                gen.arg_count()
224            ));
225            help.push_str("\nColumns:\n");
226            for col in gen.columns() {
227                help.push_str(&format!("  - {}\n", col.name));
228            }
229            help.push_str("\nExample:\n");
230            help.push_str(&format!("  SELECT * FROM {}(", name.to_uppercase()));
231
232            // Add example arguments based on the generator
233            match name.to_uppercase().as_str() {
234                "GENERATE_PRIMES" => help.push_str("100"),
235                "FIBONACCI" => help.push_str("20"),
236                "PRIME_FACTORS" => help.push_str("1260"),
237                "COLLATZ" => help.push_str("7"),
238                "PASCAL_TRIANGLE" => help.push_str("5"),
239                "TRIANGULAR" | "SQUARES" | "FACTORIALS" => help.push_str("10"),
240                "RANDOM_INT" => help.push_str("10, 1, 100, 42"),
241                "RANDOM_FLOAT" => help.push_str("10, 0, 1, 42"),
242                "GENERATE_UUID" => help.push_str("5"),
243                "READ_TEXT" => help.push_str("'data/file.txt'"),
244                "READ_WORDS" => help.push_str("'data/file.txt', 3, 'lower'"),
245                "GREP" => help.push_str("'data/file.txt', 'pattern'"),
246                "ASCII_ART" | "BIG_TEXT" => help.push_str("'SQL-CLI'"),
247                "BANNER" => help.push_str("'HELLO', '*'"),
248                _ => help.push_str("..."),
249            }
250            help.push_str(");\n");
251            help
252        })
253    }
254}
255
256/// Helper function to create a single-column table
257pub fn create_single_column_table(
258    name: &str,
259    column_name: &str,
260    values: Vec<DataValue>,
261) -> Arc<DataTable> {
262    let mut table = DataTable::new(name);
263    table.add_column(DataColumn::new(column_name));
264
265    for value in values {
266        table.add_row(DataRow::new(vec![value])).unwrap();
267    }
268
269    Arc::new(table)
270}
271
272/// Helper function to create a two-column table
273pub fn create_two_column_table(
274    name: &str,
275    col1_name: &str,
276    col2_name: &str,
277    rows: Vec<(DataValue, DataValue)>,
278) -> Arc<DataTable> {
279    let mut table = DataTable::new(name);
280    table.add_column(DataColumn::new(col1_name));
281    table.add_column(DataColumn::new(col2_name));
282
283    for (val1, val2) in rows {
284        table.add_row(DataRow::new(vec![val1, val2])).unwrap();
285    }
286
287    Arc::new(table)
288}
sql_cli/sql/generators/mod.rs

sql_cli/sql/generators/
mod.rs
