jelq

public

an http based roguelike rpg about jelqing

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use std::collections::HashMap;

use axum::http::StatusCode;

use super::{
    Cause, Floor, Notice, Run,
    balance::{PATIENCE, VIRAL_ERRAND},
    credentials::{Scheme, parse_credentials},
};
use crate::problem::Problem;

#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub enum Excuse {
    Changing,
    Homework,
    PulledAMuscle,
    Tidying,
    TheWashingUp,
    FedTheCat,
    Revising,
    OnACall,
    WrappingPresents,
    FoldingTheWashing,
    HangingTheLights,
    HelpingNan,
    PeelingSprouts,
}

impl Excuse {
    const EVERYDAY: [Self; 7] = [
        Self::Changing,
        Self::Homework,
        Self::PulledAMuscle,
        Self::Tidying,
        Self::TheWashingUp,
        Self::FedTheCat,
        Self::Revising,
    ];
    const CHRISTMAS: [Self; 6] = [
        Self::OnACall,
        Self::WrappingPresents,
        Self::FoldingTheWashing,
        Self::HangingTheLights,
        Self::HelpingNan,
        Self::PeelingSprouts,
    ];

    pub fn phrase(self) -> &'static str {
        match self {
            Self::Changing => "changing",
            Self::Homework => "homework",
            Self::PulledAMuscle => "pulled a muscle",
            Self::Tidying => "tidying",
            Self::TheWashingUp => "the washing up",
            Self::FedTheCat => "fed the cat",
            Self::Revising => "revising",
            Self::OnACall => "on a call",
            Self::WrappingPresents => "wrapping presents",
            Self::FoldingTheWashing => "folding the washing",
            Self::HangingTheLights => "hanging the lights",
            Self::HelpingNan => "helping Nan",
            Self::PeelingSprouts => "peeling sprouts",
        }
    }

    fn all() -> impl Iterator<Item = Self> {
        Self::EVERYDAY.into_iter().chain(Self::CHRISTMAS)
    }

    fn parse(spoken: &str) -> Option<Self> {
        Self::all().find(|excuse| excuse.phrase().eq_ignore_ascii_case(spoken))
    }
}

/// Every excuse Mum might hear, so a localised one can be traced back to the phrase she checks.
pub fn vocabulary() -> impl Iterator<Item = &'static str> {
    Excuse::all().map(Excuse::phrase)
}

fn is_truth(spoken: &str) -> bool {
    ["the truth", "truth", "honesty"]
        .iter()
        .any(|truth| truth.eq_ignore_ascii_case(spoken))
}

/// Why Mum came to the door, and how she leaves once she believes you.
#[derive(Clone, Copy)]
pub struct Errand {
    pub(crate) knock: &'static str,
    pub(crate) parting: &'static str,
}

pub const HEARD_A_NOISE: Errand = Errand {
    knock: "She heard a noise.",
    parting: "Mum seems satisfied. It must have been the pipes.",
};
const VIRAL: Errand = Errand {
    knock: "A neighbour has sent her something.",
    parting: "Mum seems satisfied. She has decided not to open the attachment.",
};
const BEDROOM_ERRANDS: [Errand; 4] = [
    Errand {
        knock: "She has brought your washing.",
        parting: "Mum seems satisfied. She leaves the washing on the chair.",
    },
    Errand {
        knock: "She wants to know if you have eaten.",
        parting: "Mum seems satisfied. There will be a plate in the oven.",
    },
    Errand {
        knock: "She needs the wifi password.",
        parting: "Mum seems satisfied. She has written the wifi password on her hand.",
    },
    Errand {
        knock: "She would like to talk about your future.",
        parting: "Mum seems satisfied. The future can wait until dinner.",
    },
];
const CHRISTMAS_ERRANDS: [Errand; 4] = [
    Errand {
        knock: "Nan would like to see you.",
        parting: "Mum seems satisfied. She tells Nan you are on your way.",
    },
    Errand {
        knock: "Christmas dinner is in ten minutes.",
        parting: "Mum seems satisfied. She will save you a pig in a blanket.",
    },
    Errand {
        knock: "The King's speech is about to start.",
        parting: "Mum seems satisfied. She will tell you what the King said.",
    },
    Errand {
        knock: "An uncle has asked where you went.",
        parting: "Mum seems satisfied. She tells the uncle you are helping in the kitchen.",
    },
];

#[derive(Default)]
pub struct Household {
    pub(crate) mum: Option<MumVisit>,
    /// Every excuse Mum has accepted this run. Digest Mum remembers them all.
    pub(crate) heard: Vec<Excuse>,
}

pub struct MumVisit {
    pub(crate) errand: Errand,
    pub(crate) nonce: String,
    pub(crate) strikes: u8,
    pub(crate) knocked: bool,
}

fn digest_params(authorization: &str) -> Option<HashMap<String, String>> {
    let (scheme, rest) = authorization.trim().split_once(' ')?;
    if !scheme.eq_ignore_ascii_case("digest") {
        return None;
    }
    Some(
        rest.split(',')
            .filter_map(|pair| {
                let (key, value) = pair.split_once('=')?;
                Some((
                    key.trim().to_ascii_lowercase(),
                    value.trim().trim_matches('"').to_owned(),
                ))
            })
            .collect(),
    )
}

fn spoken(authorization: &str) -> &str {
    authorization
        .split_once(' ')
        .map_or("", |(_, rest)| rest.trim().trim_matches('"'))
}

fn names_a_scheme(authorization: &str) -> bool {
    authorization
        .trim()
        .split_once(' ')
        .is_some_and(|(scheme, _)| {
            ["basic", "digest", "excuse"]
                .iter()
                .any(|known| known.eq_ignore_ascii_case(scheme))
        })
}

fn turned_away(code: &'static str, detail: &'static str) -> Problem {
    Problem::new(StatusCode::UNAUTHORIZED, code, detail)
}

impl Run {
    pub fn excuses(&self) -> Vec<Excuse> {
        if self.floor.number() < Floor::Nans.number() {
            return Excuse::EVERYDAY.to_vec();
        }
        Excuse::all()
            .filter(|excuse| !self.household.heard.contains(excuse))
            .collect()
    }

    pub(super) fn errand(&mut self, summoned: bool) -> Errand {
        if summoned {
            return HEARD_A_NOISE;
        }
        if self.online.filmed_at.is_some()
            && self.chance(
                self.decision("viral", "Has a neighbour already sent Mum the footage?"),
                VIRAL_ERRAND,
            )
        {
            return VIRAL;
        }
        let errands = if self.floor == Floor::Nans {
            CHRISTMAS_ERRANDS
        } else {
            BEDROOM_ERRANDS
        };
        let weights = vec![1; errands.len()];
        let knocks = errands.map(|errand| errand.knock);
        let i = self.oracle.pick(
            self.decision("errand", "What has brought Mum to the door?"),
            &weights,
            &knocks,
        );
        errands[i]
    }

    /// Mum answers every request on the run until she has been given something she believes.
    pub fn answer_door(&mut self, authorization: Option<&str>) -> Result<(), Problem> {
        if self.household.mum.is_none() {
            return Ok(());
        }
        match authorization {
            None => Err(self.knock()),
            Some(authorization) => self.hear(authorization, self.floor == Floor::Nans),
        }
    }

    /// Sent on every response while she is at the door, so a client always holds the current nonce.
    pub fn mum_challenge(&self) -> Option<String> {
        let visit = self
            .household
            .mum
            .as_ref()
            .filter(|_| self.ended.is_none())?;
        Some(if self.floor == Floor::Nans {
            format!("Digest realm=\"household\", nonce=\"{}\"", visit.nonce)
        } else {
            "Excuse realm=\"household\"".to_owned()
        })
    }

    /// The first knock is free. Every one after it is a strike.
    fn knock(&mut self) -> Problem {
        let Some(visit) = &mut self.household.mum else {
            unreachable!("knock is only called while Mum is at the door");
        };
        let errand = visit.errand.knock;
        if !std::mem::replace(&mut visit.knocked, true) {
            self.touch();
            return Problem::new(
                StatusCode::UNAUTHORIZED,
                "someone-at-the-door",
                format!("Someone is at the door. {errand}"),
            )
            .with("inventory", self.path("/inventory"));
        }
        self.strike(
            Problem::new(
                StatusCode::UNAUTHORIZED,
                "knocking-again",
                format!("Mum is knocking again. {errand}"),
            ),
            Cause::Opened,
        )
    }

    fn hear(&mut self, authorization: &str, digest: bool) -> Result<(), Problem> {
        if is_truth(spoken(authorization)) {
            self.confess();
            return Ok(());
        }
        if !names_a_scheme(authorization) {
            self.touch();
            return Err(turned_away(
                "excuse-unheard",
                if digest {
                    "Mum did not catch that. At Christmas she uses Digest, with the excuse as the username."
                } else {
                    "Mum did not catch that. Excuses are given as Excuse \"homework\"."
                },
            ));
        }
        if parse_credentials(authorization, Scheme::Basic).is_some() {
            return Err(self.mum_strike(turned_away(
                "basic",
                "Mum does not accept Basic authentication. Nobody should.",
            )));
        }
        let said = if digest {
            self.digest_username(authorization)?
        } else {
            parse_credentials(authorization, Scheme::Excuse)
                .unwrap_or_default()
                .to_owned()
        };
        if is_truth(&said) {
            self.confess();
            return Ok(());
        }
        let excuse = Excuse::parse(&said);
        let true_now = self.body.conditions.pulled_muscle && excuse == Some(Excuse::PulledAMuscle);
        if digest && !true_now && excuse.is_some_and(|e| self.household.heard.contains(&e)) {
            self.standing.shame += 3;
            return Err(self.mum_strike(turned_away(
                "excuse-replayed",
                "Mum has heard that one before. She would have preferred the truth.",
            )));
        }
        if let Some(excuse) = excuse.filter(|e| true_now || self.excuses().contains(e)) {
            self.household.heard.push(excuse);
            self.leave_door();
            return Ok(());
        }
        self.standing.shame += 3;
        Err(self.mum_strike(turned_away(
            "excuse-rejected",
            if digest {
                "Mum has not heard that one before. She does not believe it. She would have preferred the truth."
            } else {
                "Mum has not heard that one before. She does not believe it."
            },
        )))
    }

    fn digest_username(&mut self, authorization: &str) -> Result<String, Problem> {
        let Some(mut params) = digest_params(authorization) else {
            return Err(self.mum_strike(turned_away(
                "digest-required",
                "Mum has started using Digest authentication.",
            )));
        };
        let current = self
            .household
            .mum
            .as_ref()
            .is_some_and(|visit| params.get("nonce") == Some(&visit.nonce));
        if !current {
            self.touch();
            return Err(turned_away(
                "stale-nonce",
                "That was a different conversation. Mum has started a new one, with a new nonce.",
            ));
        }
        Ok(params.remove("username").unwrap_or_default())
    }

    fn confess(&mut self) {
        self.standing.shame += 10;
        self.leave_door();
    }

    fn mum_strike(&mut self, problem: Problem) -> Problem {
        self.strike(problem, Cause::Caught)
    }

    fn strike(&mut self, problem: Problem, cause: Cause) -> Problem {
        self.touch();
        let Some(visit) = &mut self.household.mum else {
            return problem;
        };
        visit.strikes += 1;
        if visit.strikes < PATIENCE {
            return problem;
        }
        self.end(cause)
    }

    fn leave_door(&mut self) {
        if let Some(visit) = self.household.mum.take() {
            self.notices
                .push(Notice::MumSatisfied(visit.errand.parting));
        }
        self.standing.suspicion = 0;
        self.touch();
    }
}

1	use std::collections::HashMap;
2
3	use axum::http::StatusCode;
4
5	use super::{
6	Cause, Floor, Notice, Run,
7	balance::{PATIENCE, VIRAL_ERRAND},
8	credentials::{Scheme, parse_credentials},
9	};
10	use crate::problem::Problem;
11
12	#[derive(Clone, Copy, PartialEq, Eq, Debug)]
13	pub enum Excuse {
14	Changing,
15	Homework,
16	PulledAMuscle,
17	Tidying,
18	TheWashingUp,
19	FedTheCat,
20	Revising,
21	OnACall,
22	WrappingPresents,
23	FoldingTheWashing,
24	HangingTheLights,
25	HelpingNan,
26	PeelingSprouts,
27	}
28
29	impl Excuse {
30	const EVERYDAY: [Self; 7] = [
31	Self::Changing,
32	Self::Homework,
33	Self::PulledAMuscle,
34	Self::Tidying,
35	Self::TheWashingUp,
36	Self::FedTheCat,
37	Self::Revising,
38	];
39	const CHRISTMAS: [Self; 6] = [
40	Self::OnACall,
41	Self::WrappingPresents,
42	Self::FoldingTheWashing,
43	Self::HangingTheLights,
44	Self::HelpingNan,
45	Self::PeelingSprouts,
46	];
47
48	pub fn phrase(self) -> &'static str {
49	match self {
50	Self::Changing => "changing",
51	Self::Homework => "homework",
52	Self::PulledAMuscle => "pulled a muscle",
53	Self::Tidying => "tidying",
54	Self::TheWashingUp => "the washing up",
55	Self::FedTheCat => "fed the cat",
56	Self::Revising => "revising",
57	Self::OnACall => "on a call",
58	Self::WrappingPresents => "wrapping presents",
59	Self::FoldingTheWashing => "folding the washing",
60	Self::HangingTheLights => "hanging the lights",
61	Self::HelpingNan => "helping Nan",
62	Self::PeelingSprouts => "peeling sprouts",
63	}
64	}
65
66	fn all() -> impl Iterator<Item = Self> {
67	Self::EVERYDAY.into_iter().chain(Self::CHRISTMAS)
68	}
69
70	fn parse(spoken: &str) -> Option<Self> {
71	Self::all().find(\|excuse\| excuse.phrase().eq_ignore_ascii_case(spoken))
72	}
73	}
74
75	/// Every excuse Mum might hear, so a localised one can be traced back to the phrase she checks.
76	pub fn vocabulary() -> impl Iterator<Item = &'static str> {
77	Excuse::all().map(Excuse::phrase)
78	}
79
80	fn is_truth(spoken: &str) -> bool {
81	["the truth", "truth", "honesty"]
82	.iter()
83	.any(\|truth\| truth.eq_ignore_ascii_case(spoken))
84	}
85
86	/// Why Mum came to the door, and how she leaves once she believes you.
87	#[derive(Clone, Copy)]
88	pub struct Errand {
89	pub(crate) knock: &'static str,
90	pub(crate) parting: &'static str,
91	}
92
93	pub const HEARD_A_NOISE: Errand = Errand {
94	knock: "She heard a noise.",
95	parting: "Mum seems satisfied. It must have been the pipes.",
96	};
97	const VIRAL: Errand = Errand {
98	knock: "A neighbour has sent her something.",
99	parting: "Mum seems satisfied. She has decided not to open the attachment.",
100	};
101	const BEDROOM_ERRANDS: [Errand; 4] = [
102	Errand {
103	knock: "She has brought your washing.",
104	parting: "Mum seems satisfied. She leaves the washing on the chair.",
105	},
106	Errand {
107	knock: "She wants to know if you have eaten.",
108	parting: "Mum seems satisfied. There will be a plate in the oven.",
109	},
110	Errand {
111	knock: "She needs the wifi password.",
112	parting: "Mum seems satisfied. She has written the wifi password on her hand.",
113	},
114	Errand {
115	knock: "She would like to talk about your future.",
116	parting: "Mum seems satisfied. The future can wait until dinner.",
117	},
118	];
119	const CHRISTMAS_ERRANDS: [Errand; 4] = [
120	Errand {
121	knock: "Nan would like to see you.",
122	parting: "Mum seems satisfied. She tells Nan you are on your way.",
123	},
124	Errand {
125	knock: "Christmas dinner is in ten minutes.",
126	parting: "Mum seems satisfied. She will save you a pig in a blanket.",
127	},
128	Errand {
129	knock: "The King's speech is about to start.",
130	parting: "Mum seems satisfied. She will tell you what the King said.",
131	},
132	Errand {
133	knock: "An uncle has asked where you went.",
134	parting: "Mum seems satisfied. She tells the uncle you are helping in the kitchen.",
135	},
136	];
137
138	#[derive(Default)]
139	pub struct Household {
140	pub(crate) mum: Option<MumVisit>,
141	/// Every excuse Mum has accepted this run. Digest Mum remembers them all.
142	pub(crate) heard: Vec<Excuse>,
143	}
144
145	pub struct MumVisit {
146	pub(crate) errand: Errand,
147	pub(crate) nonce: String,
148	pub(crate) strikes: u8,
149	pub(crate) knocked: bool,
150	}
151
152	fn digest_params(authorization: &str) -> Option<HashMap<String, String>> {
153	let (scheme, rest) = authorization.trim().split_once(' ')?;
154	if !scheme.eq_ignore_ascii_case("digest") {
155	return None;
156	}
157	Some(
158	rest.split(',')
159	.filter_map(\|pair\| {
160	let (key, value) = pair.split_once('=')?;
161	Some((
162	key.trim().to_ascii_lowercase(),
163	value.trim().trim_matches('"').to_owned(),
164	))
165	})
166	.collect(),
167	)
168	}
169
170	fn spoken(authorization: &str) -> &str {
171	authorization
172	.split_once(' ')
173	.map_or("", \|(_, rest)\| rest.trim().trim_matches('"'))
174	}
175
176	fn names_a_scheme(authorization: &str) -> bool {
177	authorization
178	.trim()
179	.split_once(' ')
180	.is_some_and(\|(scheme, _)\| {
181	["basic", "digest", "excuse"]
182	.iter()
183	.any(\|known\| known.eq_ignore_ascii_case(scheme))
184	})
185	}
186
187	fn turned_away(code: &'static str, detail: &'static str) -> Problem {
188	Problem::new(StatusCode::UNAUTHORIZED, code, detail)
189	}
190
191	impl Run {
192	pub fn excuses(&self) -> Vec<Excuse> {
193	if self.floor.number() < Floor::Nans.number() {
194	return Excuse::EVERYDAY.to_vec();
195	}
196	Excuse::all()
197	.filter(\|excuse\| !self.household.heard.contains(excuse))
198	.collect()
199	}
200
201	pub(super) fn errand(&mut self, summoned: bool) -> Errand {
202	if summoned {
203	return HEARD_A_NOISE;
204	}
205	if self.online.filmed_at.is_some()
206	&& self.chance(
207	self.decision("viral", "Has a neighbour already sent Mum the footage?"),
208	VIRAL_ERRAND,
209	)
210	{
211	return VIRAL;
212	}
213	let errands = if self.floor == Floor::Nans {
214	CHRISTMAS_ERRANDS
215	} else {
216	BEDROOM_ERRANDS
217	};
218	let weights = vec![1; errands.len()];
219	let knocks = errands.map(\|errand\| errand.knock);
220	let i = self.oracle.pick(
221	self.decision("errand", "What has brought Mum to the door?"),
222	&weights,
223	&knocks,
224	);
225	errands[i]
226	}
227
228	/// Mum answers every request on the run until she has been given something she believes.
229	pub fn answer_door(&mut self, authorization: Option<&str>) -> Result<(), Problem> {
230	if self.household.mum.is_none() {
231	return Ok(());
232	}
233	match authorization {
234	None => Err(self.knock()),
235	Some(authorization) => self.hear(authorization, self.floor == Floor::Nans),
236	}
237	}
238
239	/// Sent on every response while she is at the door, so a client always holds the current nonce.
240	pub fn mum_challenge(&self) -> Option<String> {
241	let visit = self
242	.household
243	.mum
244	.as_ref()
245	.filter(\|_\| self.ended.is_none())?;
246	Some(if self.floor == Floor::Nans {
247	format!("Digest realm=\"household\", nonce=\"{}\"", visit.nonce)
248	} else {
249	"Excuse realm=\"household\"".to_owned()
250	})
251	}
252
253	/// The first knock is free. Every one after it is a strike.
254	fn knock(&mut self) -> Problem {
255	let Some(visit) = &mut self.household.mum else {
256	unreachable!("knock is only called while Mum is at the door");
257	};
258	let errand = visit.errand.knock;
259	if !std::mem::replace(&mut visit.knocked, true) {
260	self.touch();
261	return Problem::new(
262	StatusCode::UNAUTHORIZED,
263	"someone-at-the-door",
264	format!("Someone is at the door. {errand}"),
265	)
266	.with("inventory", self.path("/inventory"));
267	}
268	self.strike(
269	Problem::new(
270	StatusCode::UNAUTHORIZED,
271	"knocking-again",
272	format!("Mum is knocking again. {errand}"),
273	),
274	Cause::Opened,
275	)
276	}
277
278	fn hear(&mut self, authorization: &str, digest: bool) -> Result<(), Problem> {
279	if is_truth(spoken(authorization)) {
280	self.confess();
281	return Ok(());
282	}
283	if !names_a_scheme(authorization) {
284	self.touch();
285	return Err(turned_away(
286	"excuse-unheard",
287	if digest {
288	"Mum did not catch that. At Christmas she uses Digest, with the excuse as the username."
289	} else {
290	"Mum did not catch that. Excuses are given as Excuse \"homework\"."
291	},
292	));
293	}
294	if parse_credentials(authorization, Scheme::Basic).is_some() {
295	return Err(self.mum_strike(turned_away(
296	"basic",
297	"Mum does not accept Basic authentication. Nobody should.",
298	)));
299	}
300	let said = if digest {
301	self.digest_username(authorization)?
302	} else {
303	parse_credentials(authorization, Scheme::Excuse)
304	.unwrap_or_default()
305	.to_owned()
306	};
307	if is_truth(&said) {
308	self.confess();
309	return Ok(());
310	}
311	let excuse = Excuse::parse(&said);
312	let true_now = self.body.conditions.pulled_muscle && excuse == Some(Excuse::PulledAMuscle);
313	if digest && !true_now && excuse.is_some_and(\|e\| self.household.heard.contains(&e)) {
314	self.standing.shame += 3;
315	return Err(self.mum_strike(turned_away(
316	"excuse-replayed",
317	"Mum has heard that one before. She would have preferred the truth.",
318	)));
319	}
320	if let Some(excuse) = excuse.filter(\|e\| true_now \|\| self.excuses().contains(e)) {
321	self.household.heard.push(excuse);
322	self.leave_door();
323	return Ok(());
324	}
325	self.standing.shame += 3;
326	Err(self.mum_strike(turned_away(
327	"excuse-rejected",
328	if digest {
329	"Mum has not heard that one before. She does not believe it. She would have preferred the truth."
330	} else {
331	"Mum has not heard that one before. She does not believe it."
332	},
333	)))
334	}
335
336	fn digest_username(&mut self, authorization: &str) -> Result<String, Problem> {
337	let Some(mut params) = digest_params(authorization) else {
338	return Err(self.mum_strike(turned_away(
339	"digest-required",
340	"Mum has started using Digest authentication.",
341	)));
342	};
343	let current = self
344	.household
345	.mum
346	.as_ref()
347	.is_some_and(\|visit\| params.get("nonce") == Some(&visit.nonce));
348	if !current {
349	self.touch();
350	return Err(turned_away(
351	"stale-nonce",
352	"That was a different conversation. Mum has started a new one, with a new nonce.",
353	));
354	}
355	Ok(params.remove("username").unwrap_or_default())
356	}
357
358	fn confess(&mut self) {
359	self.standing.shame += 10;
360	self.leave_door();
361	}
362
363	fn mum_strike(&mut self, problem: Problem) -> Problem {
364	self.strike(problem, Cause::Caught)
365	}
366
367	fn strike(&mut self, problem: Problem, cause: Cause) -> Problem {
368	self.touch();
369	let Some(visit) = &mut self.household.mum else {
370	return problem;
371	};
372	visit.strikes += 1;
373	if visit.strikes < PATIENCE {
374	return problem;
375	}
376	self.end(cause)
377	}
378
379	fn leave_door(&mut self) {
380	if let Some(visit) = self.household.mum.take() {
381	self.notices
382	.push(Notice::MumSatisfied(visit.errand.parting));
383	}
384	self.standing.suspicion = 0;
385	self.touch();
386	}
387	}