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136 lines
3.8 KiB
136 lines
3.8 KiB
use crate::store::model::Model;
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use indexmap::map::IndexMap;
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use serde::Serialize;
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use serde_json::Value;
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use std::collections::HashMap;
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use std::fs::{File, OpenOptions};
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use std::io::{Read, Write};
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use std::path::{Path, PathBuf};
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pub mod form;
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pub mod model;
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/// Store instance
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#[derive(Debug)]
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pub struct Store {
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path: PathBuf,
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pub model: Model,
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pub data: Cards,
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pub index: Indexes,
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}
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/// Indexes loaded from the indexes file
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#[derive(Serialize, Deserialize, Debug, Default)]
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pub struct Indexes {
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pub free_enums: HashMap<String, Vec<String>>,
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pub free_tags: HashMap<String, Vec<String>>,
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}
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/// Struct loaded from the repositroy config file
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#[derive(Deserialize, Debug)]
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struct RepositoryConfig {
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pub model: Model,
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}
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#[derive(Serialize, Deserialize, Debug)]
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pub struct Cards {
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#[serde(default)]
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pub cards: IndexMap<usize, Value>,
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#[serde(default)]
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pub counter: usize,
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}
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const REPO_CONFIG_FILE: &'static str = "repository.yaml";
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const REPO_DATA_FILE: &'static str = "data.json";
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const REPO_INDEX_FILE: &'static str = "index.json";
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impl Store {
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pub fn new(path: impl AsRef<Path>) -> Self {
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let file = load_file(path.as_ref().join(REPO_CONFIG_FILE));
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let repository_config: RepositoryConfig =
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serde_yaml::from_str(&file).expect("Error parsing repository config file.");
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let items = load_file_or(path.as_ref().join(REPO_DATA_FILE), "{}");
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let indexes = load_file_or(path.as_ref().join(REPO_INDEX_FILE), "{}");
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Store {
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path: path.as_ref().into(),
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model: repository_config.model,
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data: serde_json::from_str(&items).expect("Error parsing data file."),
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index: serde_json::from_str(&indexes).unwrap_or_default(),
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}
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}
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pub fn persist(&mut self) {
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let mut file = OpenOptions::new()
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.write(true)
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.create(true)
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.truncate(true)
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.open(self.path.join(REPO_DATA_FILE))
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.expect("Error opening data file for writing.");
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let serialized = serde_json::to_string_pretty(&self.data).expect("Error serialize.");
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file.write(serialized.as_bytes())
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.expect("Error write data file");
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}
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pub fn add_card(&mut self, values: IndexMap<String, Value>) -> usize {
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let packed = serde_json::to_value(values).expect("Error serialize");
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if let p @ Value::Object(_) = packed {
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let id = self.data.counter;
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self.data.counter += 1;
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self.data.cards.insert(id, p);
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self.persist();
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id
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} else {
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panic!("Packing did not produce a map.");
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}
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}
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pub fn update_card(&mut self, id: usize, values: IndexMap<String, Value>) {
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let packed = serde_json::to_value(values).expect("Error serialize");
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if !self.data.cards.contains_key(&id) {
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panic!("No such card.");
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}
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if let p @ Value::Object(_) = packed {
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self.data.cards.insert(id, p);
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} else {
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panic!("Packing did not produce a map.");
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}
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self.persist()
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}
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pub fn delete_card(&mut self, id: usize) {
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self.data.cards.remove(&id);
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self.persist()
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}
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}
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fn load_file(path: impl AsRef<Path>) -> String {
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let mut file =
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File::open(&path).expect(&format!("Error opening file {}", path.as_ref().display()));
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let mut buf = String::new();
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file.read_to_string(&mut buf)
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.expect(&format!("Error reading file {}", path.as_ref().display()));
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buf
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}
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fn load_file_or(file: impl AsRef<Path>, def: impl Into<String>) -> String {
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let mut file = match File::open(file) {
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Ok(file) => file,
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Err(_) => return def.into(),
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};
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let mut buf = String::new();
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if file.read_to_string(&mut buf).is_err() {
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return def.into();
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}
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buf
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}
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