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use toml::Value;
use toml_query::read::TomlValueReadTypeExt;
use toml_query::insert::TomlValueInsertExt;
use chrono::NaiveDateTime;
use chrono::Local;
use chrono::NaiveDate;
use failure::Error;
use failure::Fallible as Result;
use failure::ResultExt;
use failure::err_msg;
use crate::iter::HabitInstanceStoreIdIterator;
use crate::util::IsHabitCheck;
use crate::util::get_string_header_from_entry;
use crate::instance::IsHabitInstance;
use libimagentrylink::linkable::Linkable;
use libimagstore::store::Store;
use libimagstore::store::FileLockEntry;
use libimagstore::store::Entry;
use libimagstore::storeid::StoreId;
use libimagstore::storeid::StoreIdIterator;
use libimagentryutil::isa::Is;
use libimagentryutil::isa::IsKindHeaderPathProvider;
use libimagutil::date::date_to_string;
pub trait HabitTemplate : Sized {
fn create_instance_with_date<'a>(&mut self, store: &'a Store, date: NaiveDate)
-> Result<FileLockEntry<'a>>;
fn create_instance_today<'a>(&mut self, store: &'a Store) -> Result<FileLockEntry<'a>>;
fn retrieve_instance_with_date<'a>(&mut self, store: &'a Store, date: NaiveDate)
-> Result<FileLockEntry<'a>>;
fn retrieve_instance_today<'a>(&mut self, store: &'a Store) -> Result<FileLockEntry<'a>>;
fn linked_instances(&self) -> Result<HabitInstanceStoreIdIterator>;
fn next_instance_date_after(&self, base: &NaiveDateTime) -> Result<Option<NaiveDate>>;
fn next_instance_date(&self) -> Result<Option<NaiveDate>>;
fn is_habit_template(&self) -> Result<bool>;
fn habit_name(&self) -> Result<String>;
fn habit_basedate(&self) -> Result<String>;
fn habit_recur_spec(&self) -> Result<String>;
fn habit_comment(&self) -> Result<String>;
fn habit_until_date(&self) -> Result<Option<String>>;
fn instance_exists_for_date(&self, date: NaiveDate) -> Result<bool>;
fn instance_id_for(habit_name: &str, habit_date: NaiveDate) -> Result<StoreId>;
}
provide_kindflag_path!(pub IsHabitTemplate, "habit.template.is_habit_template");
impl HabitTemplate for Entry {
fn create_instance_with_date<'a>(&mut self, store: &'a Store, date: NaiveDate) -> Result<FileLockEntry<'a>> {
let name = self.habit_name()?;
let date = date_to_string(date);
let id = instance_id_for_name_and_datestr(&name, &date)?;
store.create(id)
.map_err(From::from)
.and_then(|entry| postprocess_instance(entry, name, date, self))
}
fn create_instance_today<'a>(&mut self, store: &'a Store) -> Result<FileLockEntry<'a>> {
self.create_instance_with_date(store, Local::today().naive_local())
}
fn retrieve_instance_with_date<'a>(&mut self, store: &'a Store, date: NaiveDate) -> Result<FileLockEntry<'a>> {
let name = self.habit_name()?;
let date = date_to_string(date);
let id = instance_id_for_name_and_datestr(&name, &date)?;
store.retrieve(id)
.map_err(From::from)
.and_then(|entry| postprocess_instance(entry, name, date, self))
}
fn retrieve_instance_today<'a>(&mut self, store: &'a Store) -> Result<FileLockEntry<'a>> {
self.retrieve_instance_with_date(store, Local::today().naive_local())
}
fn linked_instances(&self) -> Result<HabitInstanceStoreIdIterator> {
let iter = self
.links()?
.map(|link| link.get_store_id().clone())
.filter(IsHabitCheck::is_habit_instance)
.map(Ok);
let sidi = StoreIdIterator::new(Box::new(iter));
Ok(HabitInstanceStoreIdIterator::new(sidi))
}
fn next_instance_date_after(&self, base: &NaiveDateTime) -> Result<Option<NaiveDate>> {
use kairos::timetype::TimeType;
use kairos::parser::parse;
use kairos::parser::Parsed;
use kairos::iter::extensions::Every;
let date_from_s = |r: String| -> Result<TimeType> {
match parse(&r)? {
Parsed::TimeType(tt) => Ok(tt),
Parsed::Iterator(_) => {
Err(format_err!("'{}' yields an iterator. Cannot use.", r))
},
}
};
debug!("Base is {:?}", base);
let basedate = date_from_s(self.habit_basedate()?)?;
debug!("Basedate is {:?}", basedate);
let increment = date_from_s(self.habit_recur_spec()?)?;
debug!("Increment is {:?}", increment);
let until = self.habit_until_date()?.map(|s| -> Result<_> {
date_from_s(s)?
.calculate()?
.get_moment()
.map(Clone::clone)
.ok_or_else(|| err_msg("until-date seems to have non-date value"))
});
debug!("Until-Date is {:?}", basedate);
for element in basedate.every(increment)? {
debug!("Calculating: {:?}", element);
let element = element?.calculate()?;
debug!(" = {:?}", element);
if let Some(ndt) = element.get_moment() {
if ndt >= base {
debug!("-> {:?} >= {:?}", ndt, base);
if let Some(u) = until {
if *ndt > u? {
return Ok(None);
} else {
return Ok(Some(ndt.date()));
}
} else {
return Ok(Some(ndt.date()));
}
}
} else {
return Err(err_msg("Iterator seems to return bogus values."));
}
}
unreachable!()
}
fn next_instance_date(&self) -> Result<Option<NaiveDate>> {
use kairos::timetype::TimeType;
let today = TimeType::today();
let today = today.get_moment().unwrap();
debug!("Today is {:?}", today);
self.next_instance_date_after(&today.date().and_hms(0, 0, 0))
}
fn is_habit_template(&self) -> Result<bool> {
self.is::<IsHabitTemplate>().map_err(From::from)
}
fn habit_name(&self) -> Result<String> {
get_string_header_from_entry(self, "habit.template.name")
}
fn habit_basedate(&self) -> Result<String> {
get_string_header_from_entry(self, "habit.template.basedate")
}
fn habit_recur_spec(&self) -> Result<String> {
get_string_header_from_entry(self, "habit.template.recurspec")
}
fn habit_comment(&self) -> Result<String> {
get_string_header_from_entry(self, "habit.template.comment")
}
fn habit_until_date(&self) -> Result<Option<String>> {
self.get_header()
.read_string("habit.template.until")
.map_err(From::from)
.map(|os| os.map(String::from))
}
fn instance_exists_for_date(&self, date: NaiveDate) -> Result<bool> {
let name = self.habit_name()?;
let date = date_to_string(date);
for link in self.links()? {
let sid = link.get_store_id();
let instance_id = instance_id_for_name_and_datestr(&name, &date)?;
if sid.is_habit_instance() && instance_id == *sid {
return Ok(true);
}
}
Ok(false)
}
fn instance_id_for(habit_name: &str, habit_date: NaiveDate) -> Result<StoreId> {
instance_id_for_name_and_datestr(habit_name, &date_to_string(habit_date))
}
}
fn instance_id_for_name_and_datestr(habit_name: &str, habit_date: &str) -> Result<StoreId> {
crate::module_path::new_id(format!("instance/{}-{}", habit_name, habit_date))
.context(format_err!("Failed building ID for instance: habit name = {}, habit date = {}", habit_name, habit_date))
.map_err(Error::from)
}
pub mod builder {
use toml::Value;
use toml_query::insert::TomlValueInsertExt;
use chrono::NaiveDate;
use libimagstore::store::Store;
use libimagstore::storeid::StoreId;
use libimagstore::store::FileLockEntry;
use libimagentryutil::isa::Is;
use failure::Error;
use failure::Fallible as Result;
use failure::err_msg;
use libimagutil::date::date_to_string;
use crate::habit::IsHabitTemplate;
#[derive(Debug)]
pub struct HabitBuilder {
name: Option<String>,
comment: Option<String>,
basedate: Option<NaiveDate>,
recurspec: Option<String>,
untildate: Option<NaiveDate>,
}
impl HabitBuilder {
pub fn with_name(mut self, name: String) -> Self {
self.name = Some(name);
self
}
pub fn with_comment(mut self, comment: String) -> Self {
self.comment = Some(comment);
self
}
pub fn with_basedate(mut self, date: NaiveDate) -> Self {
self.basedate = Some(date);
self
}
pub fn with_recurspec(mut self, spec: String) -> Self {
self.recurspec = Some(spec);
self
}
pub fn with_until(mut self, date: NaiveDate) -> Self {
self.untildate = Some(date);
self
}
pub fn build<'a>(self, store: &'a Store) -> Result<FileLockEntry<'a>> {
#[inline]
fn mkerr(s: &'static str) -> Error {
format_err!("Habit builder missing: {}", s)
}
let name = self.name.ok_or_else(|| mkerr("name"))?;
debug!("Success: Name present");
let dateobj = self.basedate.ok_or_else(|| mkerr("date"))?;
debug!("Success: Date present");
let recur : String = self.recurspec.ok_or_else(|| mkerr("recurspec"))?;
debug!("Success: Recurr spec present");
if let Some(until) = self.untildate {
debug!("Success: Until-Date present");
if dateobj > until {
let e = err_msg("Habit builder logic error: until-date before start date");
return Err(e);
}
}
if let Err(e) = ::kairos::parser::parse(&recur).map_err(Error::from) {
debug!("Kairos failed: {:?}", e);
return Err(e)
}
let date = date_to_string(dateobj);
debug!("Success: Date valid");
let comment = self.comment.unwrap_or_else(String::new);
let sid = build_habit_template_sid(&name)?;
debug!("Creating entry in store for: {:?}", sid);
let mut entry = store.create(sid)?;
entry.set_isflag::<IsHabitTemplate>()?;
{
let h = entry.get_header_mut();
let _ = h.insert("habit.template.name", Value::String(name))?;
let _ = h.insert("habit.template.basedate", Value::String(date))?;
let _ = h.insert("habit.template.recurspec", Value::String(recur))?;
let _ = h.insert("habit.template.comment", Value::String(comment))?;
}
if let Some(until) = self.untildate {
let until = date_to_string(until);
entry.get_header_mut().insert("habit.template.until", Value::String(until))?;
}
debug!("Success: Created entry in store and set headers");
Ok(entry)
}
}
impl Default for HabitBuilder {
fn default() -> Self {
HabitBuilder {
name: None,
comment: None,
basedate: None,
recurspec: None,
untildate: None,
}
}
}
fn build_habit_template_sid(name: &str) -> Result<StoreId> {
crate::module_path::new_id(format!("template/{}", name)).map_err(From::from)
}
}
fn postprocess_instance<'a>(mut entry: FileLockEntry<'a>,
name: String,
date: String,
template: &mut Entry)
-> Result<FileLockEntry<'a>>
{
{
entry.set_isflag::<IsHabitInstance>()?;
let hdr = entry.get_header_mut();
let _ = hdr.insert("habit.instance.name", Value::String(name))?;
let _ = hdr.insert("habit.instance.date", Value::String(date))?;
}
entry.add_link(template)?;
Ok(entry)
}