MaCH repo
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300
08_todo_tasks/main.c
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300
08_todo_tasks/main.c
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#include <mach.h>
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#include <sqlite.h>
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#include <tailwind.h>
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config mach() {
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return (config) {
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.resources = {
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{"home", "/",
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.get = {
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reroute("todos")
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}
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},
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{"todos", "/todos",
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.get = {
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query(
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{.set_key = "todos",
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.db = "todos_db",
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.query =
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"SELECT id, title, done, created_at "
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"FROM todos ORDER BY created_at DESC;"
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},
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{.set_key = "stats",
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.db = "todos_db",
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.query =
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"SELECT total, done FROM stats WHERE id = 1;"
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}
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),
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render(
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"<html>"
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"<head>"
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"<title>MACH Tasks Demo</title>"
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"{{> tailwind_script}}"
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"</head>"
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"<body class='bg-gray-50 min-h-screen p-8'>"
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"<div class='max-w-lg mx-auto'>"
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"<h1 class='text-2xl font-bold mb-1'>Todos</h1>"
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"{{#stats}}"
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"<p class='text-sm text-gray-500 mb-4'>"
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"{{done}} of {{total}} done"
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"</p>"
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"{{/stats}}"
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"<form method='POST' class='flex gap-2 mb-6'>"
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"<input name='title' placeholder='What needs doing?'"
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" class='flex-1 border rounded px-3 py-2' required>"
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"<button class='bg-blue-600 text-white px-4 py-2 rounded'>"
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"Add"
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"</button>"
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"</form>"
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"{{#todos}}"
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"<div class='flex items-center gap-3 py-2 border-b'>"
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"<form method='POST' action='{{url:todo:id}}'>"
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"<input type='hidden' name='http_method' value='put'>"
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"{{#done}}"
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"<button class='text-green-600'>✓</button>"
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"{{/done}}"
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"{{^done}}"
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"<button class='text-gray-300 hover:text-green-600'>○</button>"
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"{{/done}}"
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"</form>"
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"{{#done}}"
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"<span class='flex-1 line-through text-gray-400'>{{title}}</span>"
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"{{/done}}"
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"{{^done}}"
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"<span class='flex-1'>{{title}}</span>"
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"{{/done}}"
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"<form method='POST' action='{{url:todo:id}}'>"
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"<input type='hidden' name='http_method' value='delete'>"
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"<button class='text-red-400 hover:text-red-600 text-sm'>"
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"✕"
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"</button>"
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"</form>"
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"</div>"
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"{{/todos}}"
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"{{^todos}}"
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"<p class='text-gray-400 italic'>No todos yet.</p>"
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"{{/todos}}"
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"<a href='/activity' class='inline-block mt-6 text-sm text-blue-600 underline'>"
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"View worker activity log →"
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"</a>"
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"</div>"
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"</body>"
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"</html>"
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)
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},
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.post = {
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validate({"title",
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.validation = validate_not_empty,
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.message = "Title cannot be empty"
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}),
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query({
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.db = "todos_db",
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.query =
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"INSERT INTO todos(title) VALUES({{title}});"
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}),
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query({"recount",
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.db = "todos_db"
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}),
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task("log_created"),
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redirect("todos")
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}
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},
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{"todo", "/todos/:id", {
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validate({"id",
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.validation = validate_positive,
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.message = "Invalid id"
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})},
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.put = {
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query({
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.db = "todos_db",
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.query =
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"UPDATE todos "
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"SET done = CASE WHEN done = 0 THEN 1 ELSE 0 END "
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"WHERE id = {{id}};"
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}),
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query({"recount",
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.db = "todos_db"
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}),
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task("log_toggled"),
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redirect("todos")
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},
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.delete = {
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query({
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.db = "todos_db",
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.query =
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"DELETE FROM todos WHERE id = {{id}};"
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}),
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query({"recount",
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.db = "todos_db"
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}),
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task("log_deleted"),
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redirect("todos")
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}
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},
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{"activity", "/activity",
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.get = {
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query({
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.set_key = "logs",
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.db = "todos_db",
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.query =
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"SELECT action, detail, ran_at "
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"FROM activity_log ORDER BY ran_at DESC LIMIT 50;"
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}),
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render(
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"<html>"
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"<head>"
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"<title>Worker Activity</title>"
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"{{> tailwind_script}}"
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"</head>"
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"<body class='bg-gray-50 min-h-screen p-8'>"
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"<div class='max-w-lg mx-auto'>"
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"<h1 class='text-2xl font-bold mb-1'>Worker Activity</h1>"
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"<p class='text-sm text-gray-500 mb-4'>"
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"Task executions from the worker reactor"
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"</p>"
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"<a href='/todos'"
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" class='inline-block mb-4 text-sm text-blue-600 underline'>"
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"← Back to todos"
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"</a>"
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"{{#logs}}"
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"<div class='flex items-baseline gap-2 py-2 border-b text-sm'>"
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"<span class='font-mono text-purple-700 shrink-0'>{{action}}</span>"
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"<span class='text-gray-600 flex-1'>{{detail}}</span>"
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"<span class='text-gray-400 shrink-0'>{{ran_at}}</span>"
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"</div>"
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"{{/logs}}"
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"{{^logs}}"
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"<p class='text-gray-400 italic'>No activity yet.</p>"
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"{{/logs}}"
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"</div>"
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"</body>"
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"</html>"
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)
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}
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}
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},
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.context = {
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{"recount",
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"UPDATE stats SET "
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"total = (SELECT count(*) FROM todos),"
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"done = (SELECT count(*) FROM todos WHERE done = 1),"
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"updated_at = datetime('now') "
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"WHERE id = 1;"
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}
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},
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.errors = {
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{http_bad_request, {
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render(
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"<html>"
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"<head>"
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"<title>Error</title>"
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"{{> tailwind_script}}"
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"</head>"
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"<body class='bg-gray-50 p-8'>"
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"<div class='max-w-lg mx-auto'>"
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"<p class='text-red-600 mb-4'>{{error_message:title}}</p>"
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"<a href='/todos' class='text-blue-600 underline'>← Back</a>"
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"</div>"
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"</body>"
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"</html>"
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)
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}}
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},
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.tasks = {
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{"log_created", {
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query({
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.db = "todos_db",
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.query =
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"INSERT INTO activity_log(action, detail) "
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"VALUES('created', 'added: {{title}}');"
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})},
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.accepts = {"title"}
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},
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{"log_toggled", {
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query({
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.db = "todos_db",
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.query =
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"INSERT INTO activity_log(action, detail) "
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"VALUES('toggled', 'toggled todo #{{id}}');"
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})},
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.accepts = {"id"}
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},
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{"log_deleted", {
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query({
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.db = "todos_db",
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.query =
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"INSERT INTO activity_log(action, detail) "
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"VALUES('deleted', 'removed todo #{{id}}');"
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})},
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.accepts = {"id"}
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},
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{"cleanup_stale", {
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query(
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{.db = "todos_db",
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.query =
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"UPDATE todos SET done = 1 "
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"WHERE done = 0 "
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"AND created_at < datetime('now', '-1 hour');"
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},
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{.db = "todos_db",
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.query =
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"INSERT INTO activity_log(action, detail) "
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"VALUES('cron', 'auto-completed stale todos');"
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}
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)},
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.cron = "* * * * *"
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}
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},
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.databases = {{
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.engine = sqlite_db,
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.name = "todos_db",
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.connect = "file:todos.db?mode=rwc",
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.migrations = {
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"CREATE TABLE todos ("
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"id INTEGER PRIMARY KEY AUTOINCREMENT,"
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"title TEXT NOT NULL,"
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"done INTEGER NOT NULL DEFAULT 0,"
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"created_at TEXT NOT NULL DEFAULT (datetime('now'))"
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");",
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"CREATE TABLE stats ("
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"id INTEGER PRIMARY KEY CHECK (id = 1),"
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"total INTEGER NOT NULL DEFAULT 0,"
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"done INTEGER NOT NULL DEFAULT 0,"
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"updated_at TEXT NOT NULL DEFAULT (datetime('now'))"
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");",
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"CREATE TABLE activity_log ("
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"id INTEGER PRIMARY KEY AUTOINCREMENT,"
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"action TEXT NOT NULL,"
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"detail TEXT,"
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"ran_at TEXT NOT NULL DEFAULT (datetime('now'))"
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");"
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},
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.seeds = {
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"INSERT INTO todos(title) VALUES"
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"('Learn the MACH tasks API'),"
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"('Build something cool'),"
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"('Ship it');",
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"INSERT INTO stats(total, done, updated_at) VALUES"
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"(3, 0, datetime('now'));"
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}
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}},
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.modules = {sqlite, tailwind}
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};
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}
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