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use std::collections::HashMap;
use crate::{
table::{cell::Cell, Table},
utils::multi_lines,
};
use anyhow::{Context, Result};
use serde::{Deserialize, Serialize};
#[derive(Debug, Deserialize, Serialize, Clone)]
#[serde(untagged)]
enum Json {
Object(serde_json::Map<String, serde_json::Value>),
Value(serde_json::Value),
}
#[derive(Debug, Clone)]
pub struct Data {
data: Vec<Json>,
sort_key: Option<String>,
}
impl Data {
fn new(data: Vec<Json>) -> Self {
Self {
data,
sort_key: None,
}
}
pub fn from(s: &str) -> Result<Self> {
serde_json::from_str::<Vec<Json>>(s)
.map(Self::new)
.context("unsupported format")
}
pub fn set_sort_key(&mut self, s: Option<String>) -> &mut Self {
self.sort_key = s;
self
}
fn keys(&self) -> Vec<String> {
self.data
.get(0)
.map(|x| match x {
Json::Object(obj) => obj.keys().map(|x| x.clone()).collect(),
_ => vec![],
})
.unwrap_or_default()
}
fn sorted_data(&self) -> Vec<Json> {
let sort_keys = self
.sort_key
.clone()
.map(|x| x.split(".").map(String::from).collect::<Vec<_>>());
if let Some(keys) = sort_keys {
let mut data = self.data.clone();
data.sort_by_cached_key(|x| {
let val = keys.iter().fold(x.clone(), |val, key| match val {
Json::Object(obj) => obj
.get(key)
.map(|v| match v {
serde_json::Value::Object(o) => Json::Object(o.clone()),
_ => Json::Value(v.clone()),
})
.unwrap_or(Json::Value(serde_json::Value::default())),
_ => val,
});
match val {
Json::Object(_) => String::new(),
Json::Value(serde_json::Value::Number(n)) => format!("{: >099}", n),
Json::Value(v) => v.to_string(),
}
});
data
} else {
self.data.clone()
}
}
fn value_strings(&self) -> Vec<Vec<String>> {
self.sorted_data()
.iter()
.map(|x| match x {
Json::Object(obj) => self
.keys()
.iter()
.map(|k| obj.get(k.as_str()).map(|x| x.clone()))
.collect::<Vec<_>>(),
Json::Value(serde_json::Value::Array(arr)) => {
arr.clone().iter().map(|x| Some(x.clone())).collect()
}
Json::Value(val) => vec![Some(val.clone())],
})
.map(|x| {
x.iter()
.map(|x| match x {
Some(serde_json::Value::String(s)) => String::from(s),
Some(serde_json::Value::Bool(b)) => b.to_string(),
Some(serde_json::Value::Number(n)) => n.to_string(),
Some(serde_json::Value::Null) => String::from("null"),
None => String::from("undefined"),
_ => String::from("..."),
})
.collect::<Vec<_>>()
})
.collect::<Vec<_>>()
}
pub fn nested_fields(&self) -> Vec<(String, Self)> {
let nested_fields = {
let data = self.sorted_data();
let filtered_data = data.iter().filter_map(|x| match x {
Json::Object(obj) => Some(obj),
_ => None,
});
let nested_fields = filtered_data.map(|x| {
x.keys()
.zip(x.values())
.filter(|(_, x)| match x {
serde_json::Value::Object(_) | serde_json::Value::Array(_) => true,
_ => false,
})
.collect::<Vec<_>>()
});
let mut map: HashMap<String, Vec<serde_json::Value>> = HashMap::new();
nested_fields.for_each(|xs| {
xs.into_iter().for_each(|(k, v)| {
let mut vec = if let Some(vec) = map.get(k) {
vec.clone()
} else {
Vec::new()
};
vec.push(v.clone());
map.insert(k.clone(), vec);
});
});
map
};
nested_fields
.iter()
.map(|(k, v)| {
(
k.clone(),
Self::new(
v.iter()
.map(|x| match x {
serde_json::Value::Object(o) => Json::Object(o.clone()),
_ => Json::Value(x.clone()),
})
.collect(),
),
)
})
.collect()
}
}
impl Into<Table<String>> for Data {
fn into(self) -> Table<String> {
let mut table = Table::new();
let keys = self.keys();
let values = multi_lines(self.value_strings());
if !keys.is_empty() {
let title = keys.into_iter().map(|x| Cell::new(x)).collect::<Vec<_>>();
table.set_header(Some(title));
}
values
.into_iter()
.map(|xs| xs.into_iter().map(Cell::new).collect::<Vec<_>>())
.for_each(|row| table.push_row(row));
table
}
}