init

4 files changed, 583 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f39bbb3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/*.pdf
+/node_modules
diff --git a/app.mjs b/app.mjs
new file mode 100755
index 0000000..77fa213
--- /dev/null
+++ b/app.mjs
@@ -0,0 +1,105 @@
+#!/usr/bin/env node
+
+const csUrl = "https://aeronav.faa.gov/upload_313-d/supplements/";
+const tppUrl = "https://aeronav.faa.gov/upload_313-d/terminal/";
+
+import { JSDOM } from "jsdom";
+import moment from "moment";
+import fs from "node:fs/promises";
+
+const csRegions = ["SW"];
+const tppRegions = ["SW1", "SW2", "SW3", "SW4"];
+
+const getChartSupplementDiretory = async () => {
+    const dom = await JSDOM.fromURL(csUrl, {});
+    let chd = dom.window.document.querySelector("pre").children;
+    const files = {};
+    for (let i = 0; i < csRegions.length; i++) {
+        files[csRegions[i]] = [];
+    }
+    const pattern = /CS_([A-Z]+)_([0-9]{8}).pdf/;
+    for (let i = 0; i < chd.length; i++) {
+        if (chd[i] instanceof dom.window.HTMLAnchorElement) {
+            const file = chd[i].textContent;
+            const m = file.match(pattern);
+            if (m) {
+                const region = m[1];
+                const date = moment(m[2], "YYYYMMDD");
+                const url = `${csUrl}${file}`;
+                if (files[region]) {
+                    files[region].push({ url, date });
+                    if (moment() >= date) {
+                        files[region].current = { url, date: m[2] };
+                    }
+                }
+            }
+        }
+    }
+    return files;
+};
+
+const getTerminalProcedurePublication = async () => {
+    const dom = await JSDOM.fromURL(tppUrl, {});
+    let chd = dom.window.document.querySelector("pre").children;
+    const files = {};
+    for (let i = 0; i < tppRegions.length; i++) {
+        files[tppRegions[i]] = [];
+    }
+    const pattern = /([0-9]{4}-[0-9]{2}-[0-9]{2})/;
+    for (let i = 0; i < chd.length; i++) {
+        if (chd[i] instanceof dom.window.HTMLAnchorElement) {
+            const folder = chd[i].textContent;
+            const m = folder.match(pattern);
+            if (m) {
+                const dom = await JSDOM.fromURL(`${tppUrl}${m[1]}`, {});
+                const date = moment(m[1], "YYYY-MM-DD");
+                const items = dom.window.document.querySelector("pre").children;
+                const pattern = /([A-Z1-9]+).pdf/;
+                if (moment() >= date) {
+                    for (let j = 0; j < items.length; j++) {
+                        const file = items[j].textContent;
+                        const m = file.match(pattern);
+                        const url = `${tppUrl}/${folder}/${file}`;
+                        if (m) {
+                            const region = m[1];
+                            if (files[region]) {
+                                files[region].push({ url, date });
+                                files[region].current = {
+                                    url,
+                                    date: date.format("YYYYMMDD"),
+                                };
+                            }
+                        }
+                    }
+                } else {
+                    console.log(`skipped ${folder}: in the future`);
+                }
+            }
+        }
+    }
+    return files;
+};
+
+const res = [
+    { prefix: "cs", files: await getChartSupplementDiretory() },
+    { prefix: "tpp", files: await getTerminalProcedurePublication() },
+];
+for (let r of res) {
+    for (let region of Object.keys(r.files)) {
+        const cur = r.files[region].current;
+        const file = `${r.prefix}-${region}-${cur.date}.pdf`;
+        const fileExists = (path) =>
+            fs.stat(path).then(
+                () => true,
+                () => false,
+            );
+        if (await fileExists(file)) {
+            console.log(`file "${file}" already exists`);
+        } else {
+            console.log(`downloading "${file}"`);
+            await fetch(cur.url)
+                .then((r) => r.arrayBuffer())
+                .then((bytes) => fs.writeFile(file, new Uint8Array(bytes)));
+        }
+    }
+}
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..95cef54
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,470 @@
+{
+  "name": "faa-chart-bag",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "jsdom": "^25.0.0",
+        "moment": "^2.30.1"
+      }
+    },
+    "node_modules/agent-base": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.1.tgz",
+      "integrity": "sha512-H0TSyFNDMomMNJQBn8wFV5YC/2eJ+VXECwOadZJT554xP6cODZHPX3H9QMQECxvrgiSOP1pHjy1sMWQVYJOUOA==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.3.4"
+      },
+      "engines": {
+        "node": ">= 14"
+      }
+    },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "license": "MIT"
+    },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "license": "MIT",
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+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
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+    },
+    "node_modules/cssstyle": {
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+      "resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-4.1.0.tgz",
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+      },
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+      "dependencies": {
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+        "whatwg-url": "^14.0.0"
+      },
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+      "license": "MIT",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/decimal.js": {
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+      "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.4.3.tgz",
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+      "license": "MIT"
+    },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/entities": {
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+      "license": "BSD-2-Clause",
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diff --git a/package.json b/package.json
new file mode 100644
index 0000000..4e8d2d1
--- /dev/null
+++ b/package.json
@@ -0,0 +1,6 @@
+{
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+    "jsdom": "^25.0.0",
+    "moment": "^2.30.1"
+  }
+}