query.rs
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query.rs
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	use std::process::exit;

	use sqlx::PgPool;

	use crate::db::connect_to_db;
	use crate::fantoir::looks_like_canonical_fantoir_code;
	use crate::QueryArgs;
	use crate::services::query::*;

	static EXIT_CODE_NO_RESULT_FOUND: i32 = 4;

	pub async fn search(args: QueryArgs, database_url: &str) {
	let pool = connect_to_db(database_url).await;

	if args.code_insee.is_some() && args.code_voie.is_some() {
	let code_fantoir = search_fantoir_code(
	&pool,
	&args.code_insee.unwrap(),
	&args.code_voie.unwrap(),
	).await;

	if let Some(code) = code_fantoir {
	search_one_row(&pool, &code).await;
	return;
	}

	exit(EXIT_CODE_NO_RESULT_FOUND);
	}

	if args.expression.len() > 0 {
	if let Some(code) = pick_fantoir_code_from_args(&args.expression) {
	search_one_row(&pool, &code).await;
	return;
	}

	search_libelle(&pool, args).await;
	return;
	}

	unimplemented!()
	}

	async fn search_one_row(pool: &PgPool, code_fantoir: &str) {
	match query_fantoir_code(pool, code_fantoir).await {
	None => {
	exit(EXIT_CODE_NO_RESULT_FOUND);
	}
	Some(result) => {
	println!("{}", result);
	}
	}
	}

	async fn search_libelle(pool: &PgPool, args: QueryArgs) {
	let expression = args.expression.join(" ");

	let mut found = false;

	query_libelle(pool, &expression)
	.await
	.iter()
	.filter(\|&entry\| entry_matches_conditions(entry, &args))
	.for_each(\|entry\| {
	found = true;

	println!("{}", entry);
	});

	if !found {
	exit(EXIT_CODE_NO_RESULT_FOUND);
	}
	}

	fn entry_matches_conditions(entry: &FantoirVoieResult, conditions: &QueryArgs) -> bool {
	if let Some(code_insee) = &conditions.code_insee {
	if &entry.code_insee != code_insee {
	return false;
	}
	}

	return true;
	}

	fn pick_fantoir_code_from_args (expressions: &Vec<String>) -> Option<String> {
	if expressions.len() == 1 && looks_like_canonical_fantoir_code(&expressions[0]) {
	Some(expressions[0].clone())
	} else {
	None
	}
	}

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