mirror of
https://codeberg.org/metamuffin/abrechenbarkeit.git
synced 2024-12-29 16:14:36 +00:00
better log, barcode scanner support
This commit is contained in:
metamuffin
parent
a7868afbcf
commit
c3dadcc5a3
1 changed files with 109 additions and 49 deletions
114
strichliste.lua
114
strichliste.lua
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@ -41,13 +41,22 @@ local stylesheet = [[
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.amount-neg { color: red; }
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nav h2 { display: inline-block }
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.notif { padding: 0.5em; margin: 0.5em; background-color: #ddd; }
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.notif.error { background-color: #faa; }
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.notif p { margin: 5px; }
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form.box { border: 2px solid grey; padding: 0.5em; margin: 0.5em; display: inline-block; }
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form h3 { margin: 5px; }
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]]
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-- local script = io.open("main.js"):read("a")
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local script = [[
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document.addEventListener("keypress", ev => {
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if (!(document.activeElement instanceof HTMLInputElement)) {
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if (ev.code.startsWith("Digit"))
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document.forms.buy_product.product.value += ev.code.substring(5)
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if (ev.code == "Enter")
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document.forms.buy_product.submit()
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}
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})
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]]
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local function respond(status, title, body)
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@ -55,6 +64,7 @@ local function respond(status, title, body)
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print("Content-Type: text/html")
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print("")
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print(string.format([[
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<!DOCTYPE html>
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<html><head>
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<title>%s</title>
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<meta charset="utf-8" />
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@ -88,6 +98,13 @@ local function form_data()
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return parse_query(io.read())
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end
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local function format_duration(t)
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if t > 86400 then return string.format("%d days", t / 86400) end
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if t > 3600 then return string.format("%d hours", t / 3600) end
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if t > 60 then return string.format("%d minutes", t / 60) end
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return string.format("%d seconds", t)
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end
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local function read_log()
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local log = io.open("log", "r")
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if log == nil then
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@ -126,54 +143,65 @@ local function balances()
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end
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return users
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end
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local function last_txns()
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local users = {}
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for time, username, _, _ in read_log() do
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users[username] = time
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end
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return users
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end
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local function r_user()
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if path == nil then
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return respond_error("no path")
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end
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local username = urldecode(path:sub(2))
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if username == nil or username:match("^([%w_ -]+)$") == nil then
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return respond_error("username invalid")
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end
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local notif = nil
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if method == "POST" then
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local function error_box(message)
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return string.format([[<div class="notif error"><p>Error: %s</p></div>]], message)
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end
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local function r_user_post(username)
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local data = form_data()
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local amount = nil
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local comment = ""
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if data.barcode then
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if data.product then
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for p_barcode, p_amount, p_name in read_products() do
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if p_barcode == data.barcode then
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if p_barcode == data.product then
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amount = p_amount
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comment = p_name
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end
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end
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if amount == nil then
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return error_box("unknown product")
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end
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else
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amount = tonumber(data.amount)
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comment = data.comment or ""
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end
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if amount == nil then
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return respond_error("amount invalid")
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return error_box("amount invalid")
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end
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if comment:match("^[%w_ -]*$") == nil then
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return respond_error("comment invalid")
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return error_box("comment invalid")
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end
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local log = io.open("log", "a+")
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if log == nil then
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return respond_error("failed to open log")
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return error_box("failed to open log")
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end
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local time = os.time()
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log:write(string.format("%d,%s,%d,%s\n", time, username, amount, comment))
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log:flush()
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log:close()
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notif = string.format(
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return string.format(
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"<div class=\"notif\"><p>Transaction successful: <strong class=\"amount-%s\">%.02f€</strong> (%s)</p></div>",
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amount >= 0 and "pos" or "neg", amount / 100, escape(comment)
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)
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end
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end
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local function r_user(username)
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local notif = nil
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if method == "POST" then
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notif = r_user_post(username)
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end
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return respond(200, username, function()
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print(string.format("<h1>%s</h1>", username))
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local balance = balances()[username]
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local last_txn = last_txns()[username]
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local new_user = balance == nil
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balance = balance or 0
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if new_user then
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@ -181,11 +209,13 @@ local function r_user()
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<div class="notif"><p><i>This user account does not exist yet. It will only be created after the first transaction.</i></p></div>
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]])
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end
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if notif then
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print(notif)
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end
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print(string.format("<p>Current balance: <span class=\"amount-%s\">%.02f€</p>", balance >= 0 and "pos" or "neg",
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balance / 100))
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if notif then print(notif) end
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print(string.format([[
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<p>Current balance: <span class="amount-%s">%.02f€</p>
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]], balance >= 0 and "pos" or "neg", balance / 100))
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print(string.format([[
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<p>Last transaction added %s ago. <a href="/%s?log">View user log</a>
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]], format_duration(os.time() - last_txn), username))
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print([[
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<form class="transaction box" action="" method="POST">
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<h3>Create Transaction</h3>
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@ -195,6 +225,12 @@ local function r_user()
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<input type="text" name="comment" id="comment" /><br/>
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<input type="submit" value="Update" />
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</form>
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<form class="transaction box" action="" method="POST" id="buy_product">
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<h3>Buy Product</h3>
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<label for="product">Product: </label>
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<input type="text" name="product" id="product" /><br/>
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<input type="submit" value="Buy" />
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</form>
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]])
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print("<div class=\"amount-presets\">")
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for _, type in ipairs({ 1, -1 }) do
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@ -214,14 +250,20 @@ local function r_user()
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end)
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end
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local function r_log()
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local function r_log(filter)
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return respond(200, "Log", function()
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print("<table>")
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print("<tr><th>Time</th><th>Username</th><th>Amount</th><th>Comment</th></tr>")
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for time, username, amount, comment in read_log() do
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print(string.format("<tr><td>%d</td><td>%s</td><td class=\"amount-%s\">%.02f€</td><td>%s</td></tr>", time,
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if filter == nil or filter == username then
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print(string.format(
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"<tr><td>%d (%s ago)</td><td>%s</td><td class=\"amount-%s\">%.02f€</td><td>%s</td></tr>",
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time, format_duration(os.time() - time),
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escape(username),
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amount >= 0 and "pos" or "neg", amount / 100, escape(comment)))
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amount >= 0 and "pos" or "neg", amount / 100,
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escape(comment)
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))
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end
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end
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print("</table>")
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end)
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@ -254,6 +296,17 @@ local function r_create_user()
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return redirect(string.format("/%s", urlencode(username)))
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end
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local function extract_username()
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if path == nil then
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return respond_error("no path")
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end
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local username = urldecode(path:sub(2))
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if username == nil or username:match("^([%w_ -]+)$") == nil then
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return nil
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end
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return username
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end
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if path == "/" then
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if query.log then
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return r_log()
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@ -263,5 +316,12 @@ if path == "/" then
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return r_index()
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end
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else
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return r_user()
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local username = extract_username()
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if username == nil then
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return respond_error("username invalid")
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elseif query.log then
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return r_log(username)
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else
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return r_user(username)
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end
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end
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