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scribe-org#378 keep db manager but remove references to rework + chan…
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1,101 changes: 617 additions & 484 deletions
1,101
Keyboards/KeyboardsBase/KeyboardViewController.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,158 @@ | ||
| /** | ||
| * Function for loading in data to the keyboards. | ||
| * | ||
| * Copyright (C) 2023 Scribe | ||
| * | ||
| * This program 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. | ||
| * | ||
| * This program 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 this program. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| import Foundation | ||
| import GRDB | ||
| import SwiftyJSON | ||
|
|
||
| /// Loads a JSON file that contains grammatical information into a dictionary. | ||
| /// | ||
| /// - Parameters | ||
| /// - filename: the name of the JSON file to be loaded. | ||
| func loadJSON(filename fileName: String) -> JSON? { | ||
| guard let url = Bundle.main.url(forResource: fileName, withExtension: "json"), | ||
| let data = try? Data(contentsOf: url), | ||
| let jsonData = try? JSON(data: data) | ||
| else { | ||
| return nil | ||
| } | ||
| return jsonData | ||
| } | ||
|
|
||
| /// Makes a connection to the language database given the value for controllerLanguage. | ||
| func openDBQueue() -> DatabaseQueue { | ||
| let dbName = "\(String(describing: get_iso_code(keyboardLanguage: controllerLanguage).uppercased()))LanguageData" | ||
| guard let dbPath = Bundle.main.path(forResource: dbName, ofType: "sqlite") else { | ||
| fatalError("Failed to locate database file.") | ||
| } | ||
| do { | ||
| let dbQueue = try DatabaseQueue(path: dbPath) | ||
| return dbQueue | ||
| } catch { | ||
| fatalError("Failed to initialize DatabaseQueue: \(error)") | ||
| } | ||
| } | ||
|
|
||
| // Variable to be replaced with the result of openDBQueue. | ||
| var languageDB = try! DatabaseQueue() | ||
|
|
||
| /// Returns a row from the language database given a query and arguments. | ||
| /// | ||
| /// - Parameters | ||
| /// - query: the query to run against the language database. | ||
| /// - outputCols: the columns from which the values should come. | ||
| /// - args: arguments to pass to `query`. | ||
| func queryDBRow(query: String, outputCols: [String], args: [String]) -> [String] { | ||
| var outputValues = [String]() | ||
| do { | ||
| try languageDB.read { db in | ||
| if let row = try Row.fetchOne(db, sql: query, arguments: StatementArguments(args)) { | ||
| for col in outputCols { | ||
| outputValues.append(row[col]) | ||
| } | ||
| } | ||
| } | ||
| } catch let error as DatabaseError { | ||
| let errorMessage = error.message | ||
| let errorSQL = error.sql | ||
| let errorArguments = error.arguments | ||
| print( | ||
| "An error '\(String(describing: errorMessage))' occurred in the query: \(String(describing: errorSQL)) (\(String(describing: errorArguments)))" | ||
| ) | ||
| } catch {} | ||
|
|
||
| if outputValues == [String]() { | ||
| // Append an empty string so that we can check for it and trigger commandState = .invalid. | ||
| outputValues.append("") | ||
| } | ||
|
|
||
| return outputValues | ||
| } | ||
|
|
||
| /// Writes a row of a language database table given a query and arguments. | ||
| /// | ||
| /// - Parameters | ||
| /// - query: the query to run against the language database. | ||
| /// - args: arguments to pass to `query`. | ||
| func writeDBRow(query: String, args: StatementArguments) { | ||
| do { | ||
| try languageDB.write { db in | ||
| try db.execute( | ||
| sql: query, | ||
| arguments: args | ||
| ) | ||
| } | ||
| } catch let error as DatabaseError { | ||
| let errorMessage = error.message | ||
| let errorSQL = error.sql | ||
| let errorArguments = error.arguments | ||
| print( | ||
| "An error '\(String(describing: errorMessage))' occurred in the query: \(String(describing: errorSQL)) (\(String(describing: errorArguments)))" | ||
| ) | ||
| } catch {} | ||
| } | ||
|
|
||
| /// Returns the next three words in the `autocomplete_lexicon` that follow a given word. | ||
| /// | ||
| /// - Parameters | ||
| /// - word: the word that autosuggestions should be returned for. | ||
| func queryAutocompletions(word: String) -> [String] { | ||
| var autocompletions = [String]() | ||
|
|
||
| let autocompletionsQuery = """ | ||
| SELECT | ||
| word | ||
| FROM | ||
| autocomplete_lexicon | ||
| WHERE | ||
| LOWER(word) LIKE ? | ||
| ORDER BY | ||
| word COLLATE NOCASE ASC | ||
| LIMIT | ||
| 3 | ||
| """ | ||
| let patterns = ["\(word.lowercased())%"] | ||
|
|
||
| do { | ||
| let rows = try languageDB.read { db in | ||
| try Row.fetchAll(db, sql: autocompletionsQuery, arguments: StatementArguments(patterns)) | ||
| } | ||
| for r in rows { | ||
| autocompletions.append(r["word"]) | ||
| } | ||
| } catch let error as DatabaseError { | ||
| let errorMessage = error.message | ||
| let errorSQL = error.sql | ||
| let errorArguments = error.arguments | ||
| print( | ||
| "An error '\(String(describing: errorMessage))' occurred in the query: \(String(describing: errorSQL)) (\(String(describing: errorArguments)))" | ||
| ) | ||
| } catch {} | ||
|
|
||
| if autocompletions == [String]() { | ||
| // Append an empty string so that we can check for it and trigger nothing being shown. | ||
| autocompletions.append("") | ||
| } | ||
|
|
||
| return autocompletions | ||
| } |
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