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<!DOCTYPE html>
<title>Photo Trips</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
body {
font-family: sans-serif;
line-height: 1.5em;
max-width: 52ch;
}
input, button, select { font-size: 100%; }
form {
display: grid;
grid-template-columns: auto 1fr;
gap: 0.5em 1ch;
}
input[type="number"] { width: 5ch; }
#trip-lens { width: 100%; }
#lens-length { width: 7ch; }
#lens-aperture { width: 8ch; }
</style>
<section id="rolls">
<h1>Rolls</h1>
<ul>
</ul>
<form>
<label for="roll-body">Camera:</label>
<select id="roll-body" class="body" required>
</select>
<label for="roll-film">Film:</label>
<input id="roll-film" list="films" required>
<button type="button" onclick="loadRoll()">Load</button>
</form>
<datalist id="films">
<option>Harman Phoenix 200</option>
<option>Ilford HP5 Plus 400</option>
<option>Shanghai Color 400</option>
<option>Fomapan Creative 200</option>
<option>Fomapan Action 400</option>
</datalist>
</section>
<section id="trips">
<h1>Trips</h1>
<form>
<label for="trip-date">Date:</label>
<input id="trip-date" type="date" required>
<label for="trip-body">Camera:</label>
<select id="trip-body" class="body" onchange="setTripBody()" required>
</select>
<label for="trip-lens">Lens:</label>
<select id="trip-lens" required>
</select>
<label for="trip-film">Film:</label>
<input id="trip-film" readonly required>
<label for="trip-first">Exposures:</label>
<span>
<input id="trip-first" type="number" required min="0" max="36">
–
<input id="trip-last" type="number" required min="0" max="36">
</span>
<label for="trip-note">Note:</label>
<input id="trip-note">
<button type="button" onclick="addTrip()">Record</button>
</form>
<ul>
</ul>
</section>
<section id="bodies">
<h1>Cameras</h1>
<ul>
</ul>
<form>
<label for="body-name">Name:</label>
<input id="body-name" required>
<label for="body-mount">Mount:</label>
<input id="body-mount" list="mounts" required>
<button type="button" onclick="addBody()">Add</button>
</form>
<datalist id="mounts">
<option>Contax/Yashica</option>
<option>M42</option>
</datalist>
</section>
<section id="lenses">
<h1>Lenses</h1>
<ul>
</ul>
<form>
<label for="lens-name">Name:</label>
<input id="lens-name" required>
<label for="lens-length">Focal length:</label>
<span><input id="lens-length" required pattern="[0-9-]+">mm</span>
<label for="lens-aperture">Aperture:</label>
<span>ƒ/<input id="lens-aperture" required pattern="[0-9.-]+"></span>
<label for="lens-mount">Mount:</label>
<input id="lens-mount" list="mounts" required>
<button type="button" onclick="addLens()">Add</button>
</form>
</section>
<script>
let bodies = JSON.parse(localStorage.getItem("bodies")) || [];
let lenses = JSON.parse(localStorage.getItem("lenses")) || [];
let rolls = JSON.parse(localStorage.getItem("rolls")) || {};
let trips = JSON.parse(localStorage.getItem("trips")) || [];
let nextId = +localStorage.getItem("nextId") || 1;
document.getElementById("trip-date").valueAsDate = new Date();
function removeButton(onclick) {
let remove = document.createElement("a");
remove.appendChild(document.createTextNode("⛔"));
remove.onclick = onclick;
return remove;
}
function setBodies() {
localStorage.setItem("bodies", JSON.stringify(bodies));
let ul = document.querySelector("#bodies > ul");
let selects = document.querySelectorAll("select.body");
ul.innerHTML = "";
selects.forEach(select => select.innerHTML = "");
for (let [index, body] of bodies.entries()) {
let li = document.createElement("li");
li.appendChild(document.createTextNode(`
${body.name} (${body.mount})
`));
li.appendChild(removeButton(removeBody.bind(null, index)));
ul.appendChild(li);
for (let select of selects) {
let option = document.createElement("option");
option.appendChild(document.createTextNode(body.name));
select.appendChild(option);
}
}
}
setBodies();
function endashify(str) {
return str.replaceAll("-", "–");
}
function lensString(lens) {
return `
${lens.name}
${endashify(lens.focalLength)}mm
ƒ/${endashify(lens.aperture)}
`.replace(/\s+/g, " ").trim();
}
function setLenses() {
localStorage.setItem("lenses", JSON.stringify(lenses));
let ul = document.querySelector("#lenses > ul");
ul.innerHTML = "";
for (let [index, lens] of lenses.entries()) {
let li = document.createElement("li");
li.appendChild(document.createTextNode(`
${lensString(lens)} (${lens.mount})
`));
li.appendChild(removeButton(removeLens.bind(null, index)));
ul.appendChild(li);
}
}
setLenses();
function setRolls() {
localStorage.setItem("rolls", JSON.stringify(rolls));
let ul = document.querySelector("#rolls > ul");
ul.innerHTML = "";
for (body in rolls) {
let roll = rolls[body];
let li = document.createElement("li");
li.appendChild(document.createTextNode(`
${body}: ${roll.film} (${roll.used}/${roll.exposures})
`));
if (roll.used == roll.exposures) {
li.style.textDecoration = "line-through";
}
ul.appendChild(li);
}
}
setRolls();
function setTrips() {
localStorage.setItem("trips", JSON.stringify(trips));
let ul = document.querySelector("#trips > ul");
ul.innerHTML = "";
let tripsByRoll = Object.groupBy(trips, trip => trip.rollId);
for (let rollId = nextId - 1; rollId > 0; --rollId) {
let rollTrips = tripsByRoll[rollId];
if (!rollTrips) continue;
let rollLi = document.createElement("li");
let rollB = document.createElement("b");
rollB.appendChild(document.createTextNode(rollTrips[0].film));
rollLi.appendChild(rollB);
rollLi.appendChild(document.createTextNode(` (${rollTrips[0].body})`));
let rollUl = document.createElement("ul");
for (let trip of rollTrips) {
let li = document.createElement("li");
let b = document.createElement("b");
b.appendChild(document.createTextNode(trip.date));
li.appendChild(b);
li.appendChild(document.createTextNode(
`: ${trip.firstExposure}–${trip.lastExposure}`
));
li.appendChild(document.createElement("br"));
li.appendChild(document.createTextNode(trip.lens));
if (trip.note) {
li.appendChild(document.createElement("br"));
li.appendChild(document.createTextNode(`“${trip.note}”`));
}
rollUl.appendChild(li);
}
rollLi.appendChild(rollUl);
ul.appendChild(rollLi);
}
}
setTrips();
function setTripBody() {
let bodyName = document.getElementById("trip-body").value;
let body = bodies.find(body => body.name == bodyName);
let select = document.getElementById("trip-lens");
select.innerHTML = "";
for (lens of lenses.filter(lens => lens.mount == body.mount)) {
let option = document.createElement("option");
option.appendChild(document.createTextNode(lensString(lens)));
select.appendChild(option);
}
let roll = rolls[body.name];
if (roll) {
document.getElementById("trip-film").value = roll.film;
let next = (roll.used > 0 ? roll.used + 1 : roll.used);
document.getElementById("trip-first").value = next;
document.getElementById("trip-last").value = next;
} else {
document.getElementById("trip-film").value = "";
document.getElementById("trip-first").value = "";
document.getElementById("trip-last").value = "";
}
}
setTripBody();
function clearForm(form) {
let inputs = form.querySelectorAll("input");
for (input of inputs) {
input.value = null;
}
}
function addBody() {
let form = document.querySelector("#bodies > form");
if (!form.checkValidity()) return;
let name = document.getElementById("body-name").value;
let mount = document.getElementById("body-mount").value;
bodies.push({ name, mount });
setBodies();
clearForm(form);
}
function removeBody(index) {
let body = bodies[index];
if (!confirm(`Are you sure you want to remove ${body.name}?`)) {
return;
}
bodies.splice(index, 1);
delete rolls[body.name];
setBodies();
setRolls();
}
function addLens() {
let form = document.querySelector("#lenses > form");
if (!form.checkValidity()) return;
let name = document.getElementById("lens-name").value;
let focalLength = document.getElementById("lens-length").value;
let aperture = document.getElementById("lens-aperture").value;
let mount = document.getElementById("lens-mount").value;
lenses.push({ name, focalLength, aperture, mount });
setLenses();
clearForm(form);
}
function removeLens(index) {
let lens = lenses[index];
if (!confirm(`Are you sure you want to remove ${lensString(lens)}?`)) {
return;
}
lenses.splice(index, 1);
setLenses();
setTripBody();
}
function loadRoll() {
let form = document.querySelector("#rolls > form");
if (!form.checkValidity()) return;
let body = document.getElementById("roll-body").value;
let film = document.getElementById("roll-film").value;
rolls[body] = { id: nextId++, film, used: 0, exposures: 36 };
localStorage.setItem("nextId", nextId);
setRolls();
clearForm(form);
setTripBody();
}
function addTrip() {
let form = document.querySelector("#trips > form");
if (!form.checkValidity()) return;
let date = document.getElementById("trip-date").value;
let body = document.getElementById("trip-body").value;
let lens = document.getElementById("trip-lens").value;
let film = document.getElementById("trip-film").value;
let firstExposure = +document.getElementById("trip-first").value;
let lastExposure = +document.getElementById("trip-last").value;
let note = document.getElementById("trip-note").value;
let trip = {
date, body, lens, film, rollId: rolls[body].id,
firstExposure, lastExposure, note
};
trips.push(trip);
rolls[body].used = lastExposure;
setTrips();
setRolls();
document.getElementById("trip-date").valueAsDate = new Date();
document.getElementById("trip-note").value = "";
setTripBody();
}
</script>
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