.gitignore

@@ -4,5 +4,6 @@ config.toml
 node_modules/
 uv.lock
 www/buy.js*
+www/mat.js*
 www/roi.js*
 www/roi_*.json

bun.lock

@@ -4,11 +4,82 @@
     "": {
       "name": "prun-calc",
       "dependencies": {
+        "@observablehq/plot": "^0.6.17",
         "@typescript/native-preview": "^7.0.0-dev",
+        "d3": "^7.9.0",
+      },
+      "devDependencies": {
+        "@types/d3": "^7.4.3",
       },
     },
   },
   "packages": {
+    "@observablehq/plot": ["@observablehq/plot@0.6.17", "", { "dependencies": { "d3": "^7.9.0", "interval-tree-1d": "^1.0.0", "isoformat": "^0.2.0" } }, "sha512-/qaXP/7mc4MUS0s4cPPFASDRjtsWp85/TbfsciqDgU1HwYixbSbbytNuInD8AcTYC3xaxACgVX06agdfQy9W+g=="],
+
+    "@types/d3": ["@types/d3@7.4.3", "", { "dependencies": { "@types/d3-array": "*", "@types/d3-axis": "*", "@types/d3-brush": "*", "@types/d3-chord": "*", "@types/d3-color": "*", "@types/d3-contour": "*", "@types/d3-delaunay": "*", "@types/d3-dispatch": "*", "@types/d3-drag": "*", "@types/d3-dsv": "*", "@types/d3-ease": "*", "@types/d3-fetch": "*", "@types/d3-force": "*", "@types/d3-format": "*", "@types/d3-geo": "*", "@types/d3-hierarchy": "*", "@types/d3-interpolate": "*", "@types/d3-path": "*", "@types/d3-polygon": "*", "@types/d3-quadtree": "*", "@types/d3-random": "*", "@types/d3-scale": "*", "@types/d3-scale-chromatic": "*", "@types/d3-selection": "*", "@types/d3-shape": "*", "@types/d3-time": "*", "@types/d3-time-format": "*", "@types/d3-timer": "*", "@types/d3-transition": "*", "@types/d3-zoom": "*" } }, "sha512-lZXZ9ckh5R8uiFVt8ogUNf+pIrK4EsWrx2Np75WvF/eTpJ0FMHNhjXk8CKEx/+gpHbNQyJWehbFaTvqmHWB3ww=="],
+
+    "@types/d3-array": ["@types/d3-array@3.2.2", "", {}, "sha512-hOLWVbm7uRza0BYXpIIW5pxfrKe0W+D5lrFiAEYR+pb6w3N2SwSMaJbXdUfSEv+dT4MfHBLtn5js0LAWaO6otw=="],
+
+    "@types/d3-axis": ["@types/d3-axis@3.0.6", "", { "dependencies": { "@types/d3-selection": "*" } }, "sha512-pYeijfZuBd87T0hGn0FO1vQ/cgLk6E1ALJjfkC0oJ8cbwkZl3TpgS8bVBLZN+2jjGgg38epgxb2zmoGtSfvgMw=="],
+
+    "@types/d3-brush": ["@types/d3-brush@3.0.6", "", { "dependencies": { "@types/d3-selection": "*" } }, "sha512-nH60IZNNxEcrh6L1ZSMNA28rj27ut/2ZmI3r96Zd+1jrZD++zD3LsMIjWlvg4AYrHn/Pqz4CF3veCxGjtbqt7A=="],
+
+    "@types/d3-chord": ["@types/d3-chord@3.0.6", "", {}, "sha512-LFYWWd8nwfwEmTZG9PfQxd17HbNPksHBiJHaKuY1XeqscXacsS2tyoo6OdRsjf+NQYeB6XrNL3a25E3gH69lcg=="],
+
+    "@types/d3-color": ["@types/d3-color@3.1.3", "", {}, "sha512-iO90scth9WAbmgv7ogoq57O9YpKmFBbmoEoCHDB2xMBY0+/KVrqAaCDyCE16dUspeOvIxFFRI+0sEtqDqy2b4A=="],
+
+    "@types/d3-contour": ["@types/d3-contour@3.0.6", "", { "dependencies": { "@types/d3-array": "*", "@types/geojson": "*" } }, "sha512-BjzLgXGnCWjUSYGfH1cpdo41/hgdWETu4YxpezoztawmqsvCeep+8QGfiY6YbDvfgHz/DkjeIkkZVJavB4a3rg=="],
+
+    "@types/d3-delaunay": ["@types/d3-delaunay@6.0.4", "", {}, "sha512-ZMaSKu4THYCU6sV64Lhg6qjf1orxBthaC161plr5KuPHo3CNm8DTHiLw/5Eq2b6TsNP0W0iJrUOFscY6Q450Hw=="],
+
+    "@types/d3-dispatch": ["@types/d3-dispatch@3.0.7", "", {}, "sha512-5o9OIAdKkhN1QItV2oqaE5KMIiXAvDWBDPrD85e58Qlz1c1kI/J0NcqbEG88CoTwJrYe7ntUCVfeUl2UJKbWgA=="],
+
+    "@types/d3-drag": ["@types/d3-drag@3.0.7", "", { "dependencies": { "@types/d3-selection": "*" } }, "sha512-HE3jVKlzU9AaMazNufooRJ5ZpWmLIoc90A37WU2JMmeq28w1FQqCZswHZ3xR+SuxYftzHq6WU6KJHvqxKzTxxQ=="],
+
+    "@types/d3-dsv": ["@types/d3-dsv@3.0.7", "", {}, "sha512-n6QBF9/+XASqcKK6waudgL0pf/S5XHPPI8APyMLLUHd8NqouBGLsU8MgtO7NINGtPBtk9Kko/W4ea0oAspwh9g=="],
+
+    "@types/d3-ease": ["@types/d3-ease@3.0.2", "", {}, "sha512-NcV1JjO5oDzoK26oMzbILE6HW7uVXOHLQvHshBUW4UMdZGfiY6v5BeQwh9a9tCzv+CeefZQHJt5SRgK154RtiA=="],
+
+    "@types/d3-fetch": ["@types/d3-fetch@3.0.7", "", { "dependencies": { "@types/d3-dsv": "*" } }, "sha512-fTAfNmxSb9SOWNB9IoG5c8Hg6R+AzUHDRlsXsDZsNp6sxAEOP0tkP3gKkNSO/qmHPoBFTxNrjDprVHDQDvo5aA=="],
+
+    "@types/d3-force": ["@types/d3-force@3.0.10", "", {}, "sha512-ZYeSaCF3p73RdOKcjj+swRlZfnYpK1EbaDiYICEEp5Q6sUiqFaFQ9qgoshp5CzIyyb/yD09kD9o2zEltCexlgw=="],
+
+    "@types/d3-format": ["@types/d3-format@3.0.4", "", {}, "sha512-fALi2aI6shfg7vM5KiR1wNJnZ7r6UuggVqtDA+xiEdPZQwy/trcQaHnwShLuLdta2rTymCNpxYTiMZX/e09F4g=="],
+
+    "@types/d3-geo": ["@types/d3-geo@3.1.0", "", { "dependencies": { "@types/geojson": "*" } }, "sha512-856sckF0oP/diXtS4jNsiQw/UuK5fQG8l/a9VVLeSouf1/PPbBE1i1W852zVwKwYCBkFJJB7nCFTbk6UMEXBOQ=="],
+
+    "@types/d3-hierarchy": ["@types/d3-hierarchy@3.1.7", "", {}, "sha512-tJFtNoYBtRtkNysX1Xq4sxtjK8YgoWUNpIiUee0/jHGRwqvzYxkq0hGVbbOGSz+JgFxxRu4K8nb3YpG3CMARtg=="],
+
+    "@types/d3-interpolate": ["@types/d3-interpolate@3.0.4", "", { "dependencies": { "@types/d3-color": "*" } }, "sha512-mgLPETlrpVV1YRJIglr4Ez47g7Yxjl1lj7YKsiMCb27VJH9W8NVM6Bb9d8kkpG/uAQS5AmbA48q2IAolKKo1MA=="],
+
+    "@types/d3-path": ["@types/d3-path@3.1.1", "", {}, "sha512-VMZBYyQvbGmWyWVea0EHs/BwLgxc+MKi1zLDCONksozI4YJMcTt8ZEuIR4Sb1MMTE8MMW49v0IwI5+b7RmfWlg=="],
+
+    "@types/d3-polygon": ["@types/d3-polygon@3.0.2", "", {}, "sha512-ZuWOtMaHCkN9xoeEMr1ubW2nGWsp4nIql+OPQRstu4ypeZ+zk3YKqQT0CXVe/PYqrKpZAi+J9mTs05TKwjXSRA=="],
+
+    "@types/d3-quadtree": ["@types/d3-quadtree@3.0.6", "", {}, "sha512-oUzyO1/Zm6rsxKRHA1vH0NEDG58HrT5icx/azi9MF1TWdtttWl0UIUsjEQBBh+SIkrpd21ZjEv7ptxWys1ncsg=="],
+
+    "@types/d3-random": ["@types/d3-random@3.0.3", "", {}, "sha512-Imagg1vJ3y76Y2ea0871wpabqp613+8/r0mCLEBfdtqC7xMSfj9idOnmBYyMoULfHePJyxMAw3nWhJxzc+LFwQ=="],
+
+    "@types/d3-scale": ["@types/d3-scale@4.0.9", "", { "dependencies": { "@types/d3-time": "*" } }, "sha512-dLmtwB8zkAeO/juAMfnV+sItKjlsw2lKdZVVy6LRr0cBmegxSABiLEpGVmSJJ8O08i4+sGR6qQtb6WtuwJdvVw=="],
+
+    "@types/d3-scale-chromatic": ["@types/d3-scale-chromatic@3.1.0", "", {}, "sha512-iWMJgwkK7yTRmWqRB5plb1kadXyQ5Sj8V/zYlFGMUBbIPKQScw+Dku9cAAMgJG+z5GYDoMjWGLVOvjghDEFnKQ=="],
+
+    "@types/d3-selection": ["@types/d3-selection@3.0.11", "", {}, "sha512-bhAXu23DJWsrI45xafYpkQ4NtcKMwWnAC/vKrd2l+nxMFuvOT3XMYTIj2opv8vq8AO5Yh7Qac/nSeP/3zjTK0w=="],
+
+    "@types/d3-shape": ["@types/d3-shape@3.1.8", "", { "dependencies": { "@types/d3-path": "*" } }, "sha512-lae0iWfcDeR7qt7rA88BNiqdvPS5pFVPpo5OfjElwNaT2yyekbM0C9vK+yqBqEmHr6lDkRnYNoTBYlAgJa7a4w=="],
+
+    "@types/d3-time": ["@types/d3-time@3.0.4", "", {}, "sha512-yuzZug1nkAAaBlBBikKZTgzCeA+k1uy4ZFwWANOfKw5z5LRhV0gNA7gNkKm7HoK+HRN0wX3EkxGk0fpbWhmB7g=="],
+
+    "@types/d3-time-format": ["@types/d3-time-format@4.0.3", "", {}, "sha512-5xg9rC+wWL8kdDj153qZcsJ0FWiFt0J5RB6LYUNZjwSnesfblqrI/bJ1wBdJ8OQfncgbJG5+2F+qfqnqyzYxyg=="],
+
+    "@types/d3-timer": ["@types/d3-timer@3.0.2", "", {}, "sha512-Ps3T8E8dZDam6fUyNiMkekK3XUsaUEik+idO9/YjPtfj2qruF8tFBXS7XhtE4iIXBLxhmLjP3SXpLhVf21I9Lw=="],
+
+    "@types/d3-transition": ["@types/d3-transition@3.0.9", "", { "dependencies": { "@types/d3-selection": "*" } }, "sha512-uZS5shfxzO3rGlu0cC3bjmMFKsXv+SmZZcgp0KD22ts4uGXp5EVYGzu/0YdwZeKmddhcAccYtREJKkPfXkZuCg=="],
+
+    "@types/d3-zoom": ["@types/d3-zoom@3.0.8", "", { "dependencies": { "@types/d3-interpolate": "*", "@types/d3-selection": "*" } }, "sha512-iqMC4/YlFCSlO8+2Ii1GGGliCAY4XdeG748w5vQUbevlbDu0zSjH/+jojorQVBK/se0j6DUFNPBGSqD3YWYnDw=="],
+
+    "@types/geojson": ["@types/geojson@7946.0.16", "", {}, "sha512-6C8nqWur3j98U6+lXDfTUWIfgvZU+EumvpHKcYjujKH7woYyLj2sUmff0tRhrqM7BohUw7Pz3ZB1jj2gW9Fvmg=="],
+
     "@typescript/native-preview": ["@typescript/native-preview@7.0.0-dev.20251211.1", "", { "optionalDependencies": { "@typescript/native-preview-darwin-arm64": "7.0.0-dev.20251211.1", "@typescript/native-preview-darwin-x64": "7.0.0-dev.20251211.1", "@typescript/native-preview-linux-arm": "7.0.0-dev.20251211.1", "@typescript/native-preview-linux-arm64": "7.0.0-dev.20251211.1", "@typescript/native-preview-linux-x64": "7.0.0-dev.20251211.1", "@typescript/native-preview-win32-arm64": "7.0.0-dev.20251211.1", "@typescript/native-preview-win32-x64": "7.0.0-dev.20251211.1" }, "bin": { "tsgo": "bin/tsgo.js" } }, "sha512-RXuRj/zn2tWrria1eea1mzOVmUjNHdOZsxlcnXLy2BjXil+ncgdMFARWryeXP2+NPmGTwC+ERJ5YAuwU8n4nlg=="],
 
     "@typescript/native-preview-darwin-arm64": ["@typescript/native-preview-darwin-arm64@7.0.0-dev.20251211.1", "", { "os": "darwin", "cpu": "arm64" }, "sha512-0TSLj8s2M1eQXnQV0+DMFCnJF4vqNobTaeKzMpR8oHOsD2az93knOUixsZk0Nyf3jYzgszDakNXhp0K3fzWWAw=="],
@@ -24,5 +95,87 @@
     "@typescript/native-preview-win32-arm64": ["@typescript/native-preview-win32-arm64@7.0.0-dev.20251211.1", "", { "os": "win32", "cpu": "arm64" }, "sha512-0vZ1NQmLyRf1bLaBjHFem1pLsJJnPMOCfScgM616cJpkbqqGEAgXfOnxKOUxiZ6X+hfx09gXn+5wq7zjaV0aag=="],
 
     "@typescript/native-preview-win32-x64": ["@typescript/native-preview-win32-x64@7.0.0-dev.20251211.1", "", { "os": "win32", "cpu": "x64" }, "sha512-OUB0nNmzZeCl0KjxeG7R+Ey1gq8iaVoJJRJpwKiTj6Ws5voKOb6PxNoM2jMNqJV3R/d3PXfR7Y39/IINioa/CQ=="],
+
+    "binary-search-bounds": ["binary-search-bounds@2.0.5", "", {}, "sha512-H0ea4Fd3lS1+sTEB2TgcLoK21lLhwEJzlQv3IN47pJS976Gx4zoWe0ak3q+uYh60ppQxg9F16Ri4tS1sfD4+jA=="],
+
+    "commander": ["commander@7.2.0", "", {}, "sha512-QrWXB+ZQSVPmIWIhtEO9H+gwHaMGYiF5ChvoJ+K9ZGHG/sVsa6yiesAD1GC/x46sET00Xlwo1u49RVVVzvcSkw=="],
+
+    "d3": ["d3@7.9.0", "", { "dependencies": { "d3-array": "3", "d3-axis": "3", "d3-brush": "3", "d3-chord": "3", "d3-color": "3", "d3-contour": "4", "d3-delaunay": "6", "d3-dispatch": "3", "d3-drag": "3", "d3-dsv": "3", "d3-ease": "3", "d3-fetch": "3", "d3-force": "3", "d3-format": "3", "d3-geo": "3", "d3-hierarchy": "3", "d3-interpolate": "3", "d3-path": "3", "d3-polygon": "3", "d3-quadtree": "3", "d3-random": "3", "d3-scale": "4", "d3-scale-chromatic": "3", "d3-selection": "3", "d3-shape": "3", "d3-time": "3", "d3-time-format": "4", "d3-timer": "3", "d3-transition": "3", "d3-zoom": "3" } }, "sha512-e1U46jVP+w7Iut8Jt8ri1YsPOvFpg46k+K8TpCb0P+zjCkjkPnV7WzfDJzMHy1LnA+wj5pLT1wjO901gLXeEhA=="],
+
+    "d3-array": ["d3-array@3.2.4", "", { "dependencies": { "internmap": "1 - 2" } }, "sha512-tdQAmyA18i4J7wprpYq8ClcxZy3SC31QMeByyCFyRt7BVHdREQZ5lpzoe5mFEYZUWe+oq8HBvk9JjpibyEV4Jg=="],
+
+    "d3-axis": ["d3-axis@3.0.0", "", {}, "sha512-IH5tgjV4jE/GhHkRV0HiVYPDtvfjHQlQfJHs0usq7M30XcSBvOotpmH1IgkcXsO/5gEQZD43B//fc7SRT5S+xw=="],
+
+    "d3-brush": ["d3-brush@3.0.0", "", { "dependencies": { "d3-dispatch": "1 - 3", "d3-drag": "2 - 3", "d3-interpolate": "1 - 3", "d3-selection": "3", "d3-transition": "3" } }, "sha512-ALnjWlVYkXsVIGlOsuWH1+3udkYFI48Ljihfnh8FZPF2QS9o+PzGLBslO0PjzVoHLZ2KCVgAM8NVkXPJB2aNnQ=="],
+
+    "d3-chord": ["d3-chord@3.0.1", "", { "dependencies": { "d3-path": "1 - 3" } }, "sha512-VE5S6TNa+j8msksl7HwjxMHDM2yNK3XCkusIlpX5kwauBfXuyLAtNg9jCp/iHH61tgI4sb6R/EIMWCqEIdjT/g=="],
+
+    "d3-color": ["d3-color@3.1.0", "", {}, "sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA=="],
+
+    "d3-contour": ["d3-contour@4.0.2", "", { "dependencies": { "d3-array": "^3.2.0" } }, "sha512-4EzFTRIikzs47RGmdxbeUvLWtGedDUNkTcmzoeyg4sP/dvCexO47AaQL7VKy/gul85TOxw+IBgA8US2xwbToNA=="],
+
+    "d3-delaunay": ["d3-delaunay@6.0.4", "", { "dependencies": { "delaunator": "5" } }, "sha512-mdjtIZ1XLAM8bm/hx3WwjfHt6Sggek7qH043O8KEjDXN40xi3vx/6pYSVTwLjEgiXQTbvaouWKynLBiUZ6SK6A=="],
+
+    "d3-dispatch": ["d3-dispatch@3.0.1", "", {}, "sha512-rzUyPU/S7rwUflMyLc1ETDeBj0NRuHKKAcvukozwhshr6g6c5d8zh4c2gQjY2bZ0dXeGLWc1PF174P2tVvKhfg=="],
+
+    "d3-drag": ["d3-drag@3.0.0", "", { "dependencies": { "d3-dispatch": "1 - 3", "d3-selection": "3" } }, "sha512-pWbUJLdETVA8lQNJecMxoXfH6x+mO2UQo8rSmZ+QqxcbyA3hfeprFgIT//HW2nlHChWeIIMwS2Fq+gEARkhTkg=="],
+
+    "d3-dsv": ["d3-dsv@3.0.1", "", { "dependencies": { "commander": "7", "iconv-lite": "0.6", "rw": "1" }, "bin": { "csv2json": "bin/dsv2json.js", "csv2tsv": "bin/dsv2dsv.js", "dsv2dsv": "bin/dsv2dsv.js", "dsv2json": "bin/dsv2json.js", "json2csv": "bin/json2dsv.js", "json2dsv": "bin/json2dsv.js", "json2tsv": "bin/json2dsv.js", "tsv2csv": "bin/dsv2dsv.js", "tsv2json": "bin/dsv2json.js" } }, "sha512-UG6OvdI5afDIFP9w4G0mNq50dSOsXHJaRE8arAS5o9ApWnIElp8GZw1Dun8vP8OyHOZ/QJUKUJwxiiCCnUwm+Q=="],
+
+    "d3-ease": ["d3-ease@3.0.1", "", {}, "sha512-wR/XK3D3XcLIZwpbvQwQ5fK+8Ykds1ip7A2Txe0yxncXSdq1L9skcG7blcedkOX+ZcgxGAmLX1FrRGbADwzi0w=="],
+
+    "d3-fetch": ["d3-fetch@3.0.1", "", { "dependencies": { "d3-dsv": "1 - 3" } }, "sha512-kpkQIM20n3oLVBKGg6oHrUchHM3xODkTzjMoj7aWQFq5QEM+R6E4WkzT5+tojDY7yjez8KgCBRoj4aEr99Fdqw=="],
+
+    "d3-force": ["d3-force@3.0.0", "", { "dependencies": { "d3-dispatch": "1 - 3", "d3-quadtree": "1 - 3", "d3-timer": "1 - 3" } }, "sha512-zxV/SsA+U4yte8051P4ECydjD/S+qeYtnaIyAs9tgHCqfguma/aAQDjo85A9Z6EKhBirHRJHXIgJUlffT4wdLg=="],
+
+    "d3-format": ["d3-format@3.1.2", "", {}, "sha512-AJDdYOdnyRDV5b6ArilzCPPwc1ejkHcoyFarqlPqT7zRYjhavcT3uSrqcMvsgh2CgoPbK3RCwyHaVyxYcP2Arg=="],
+
+    "d3-geo": ["d3-geo@3.1.1", "", { "dependencies": { "d3-array": "2.5.0 - 3" } }, "sha512-637ln3gXKXOwhalDzinUgY83KzNWZRKbYubaG+fGVuc/dxO64RRljtCTnf5ecMyE1RIdtqpkVcq0IbtU2S8j2Q=="],
+
+    "d3-hierarchy": ["d3-hierarchy@3.1.2", "", {}, "sha512-FX/9frcub54beBdugHjDCdikxThEqjnR93Qt7PvQTOHxyiNCAlvMrHhclk3cD5VeAaq9fxmfRp+CnWw9rEMBuA=="],
+
+    "d3-interpolate": ["d3-interpolate@3.0.1", "", { "dependencies": { "d3-color": "1 - 3" } }, "sha512-3bYs1rOD33uo8aqJfKP3JWPAibgw8Zm2+L9vBKEHJ2Rg+viTR7o5Mmv5mZcieN+FRYaAOWX5SJATX6k1PWz72g=="],
+
+    "d3-path": ["d3-path@3.1.0", "", {}, "sha512-p3KP5HCf/bvjBSSKuXid6Zqijx7wIfNW+J/maPs+iwR35at5JCbLUT0LzF1cnjbCHWhqzQTIN2Jpe8pRebIEFQ=="],
+
+    "d3-polygon": ["d3-polygon@3.0.1", "", {}, "sha512-3vbA7vXYwfe1SYhED++fPUQlWSYTTGmFmQiany/gdbiWgU/iEyQzyymwL9SkJjFFuCS4902BSzewVGsHHmHtXg=="],
+
+    "d3-quadtree": ["d3-quadtree@3.0.1", "", {}, "sha512-04xDrxQTDTCFwP5H6hRhsRcb9xxv2RzkcsygFzmkSIOJy3PeRJP7sNk3VRIbKXcog561P9oU0/rVH6vDROAgUw=="],
+
+    "d3-random": ["d3-random@3.0.1", "", {}, "sha512-FXMe9GfxTxqd5D6jFsQ+DJ8BJS4E/fT5mqqdjovykEB2oFbTMDVdg1MGFxfQW+FBOGoB++k8swBrgwSHT1cUXQ=="],
+
+    "d3-scale": ["d3-scale@4.0.2", "", { "dependencies": { "d3-array": "2.10.0 - 3", "d3-format": "1 - 3", "d3-interpolate": "1.2.0 - 3", "d3-time": "2.1.1 - 3", "d3-time-format": "2 - 4" } }, "sha512-GZW464g1SH7ag3Y7hXjf8RoUuAFIqklOAq3MRl4OaWabTFJY9PN/E1YklhXLh+OQ3fM9yS2nOkCoS+WLZ6kvxQ=="],
+
+    "d3-scale-chromatic": ["d3-scale-chromatic@3.1.0", "", { "dependencies": { "d3-color": "1 - 3", "d3-interpolate": "1 - 3" } }, "sha512-A3s5PWiZ9YCXFye1o246KoscMWqf8BsD9eRiJ3He7C9OBaxKhAd5TFCdEx/7VbKtxxTsu//1mMJFrEt572cEyQ=="],
+
+    "d3-selection": ["d3-selection@3.0.0", "", {}, "sha512-fmTRWbNMmsmWq6xJV8D19U/gw/bwrHfNXxrIN+HfZgnzqTHp9jOmKMhsTUjXOJnZOdZY9Q28y4yebKzqDKlxlQ=="],
+
+    "d3-shape": ["d3-shape@3.2.0", "", { "dependencies": { "d3-path": "^3.1.0" } }, "sha512-SaLBuwGm3MOViRq2ABk3eLoxwZELpH6zhl3FbAoJ7Vm1gofKx6El1Ib5z23NUEhF9AsGl7y+dzLe5Cw2AArGTA=="],
+
+    "d3-time": ["d3-time@3.1.0", "", { "dependencies": { "d3-array": "2 - 3" } }, "sha512-VqKjzBLejbSMT4IgbmVgDjpkYrNWUYJnbCGo874u7MMKIWsILRX+OpX/gTk8MqjpT1A/c6HY2dCA77ZN0lkQ2Q=="],
+
+    "d3-time-format": ["d3-time-format@4.1.0", "", { "dependencies": { "d3-time": "1 - 3" } }, "sha512-dJxPBlzC7NugB2PDLwo9Q8JiTR3M3e4/XANkreKSUxF8vvXKqm1Yfq4Q5dl8budlunRVlUUaDUgFt7eA8D6NLg=="],
+
+    "d3-timer": ["d3-timer@3.0.1", "", {}, "sha512-ndfJ/JxxMd3nw31uyKoY2naivF+r29V+Lc0svZxe1JvvIRmi8hUsrMvdOwgS1o6uBHmiz91geQ0ylPP0aj1VUA=="],
+
+    "d3-transition": ["d3-transition@3.0.1", "", { "dependencies": { "d3-color": "1 - 3", "d3-dispatch": "1 - 3", "d3-ease": "1 - 3", "d3-interpolate": "1 - 3", "d3-timer": "1 - 3" }, "peerDependencies": { "d3-selection": "2 - 3" } }, "sha512-ApKvfjsSR6tg06xrL434C0WydLr7JewBB3V+/39RMHsaXTOG0zmt/OAXeng5M5LBm0ojmxJrpomQVZ1aPvBL4w=="],
+
+    "d3-zoom": ["d3-zoom@3.0.0", "", { "dependencies": { "d3-dispatch": "1 - 3", "d3-drag": "2 - 3", "d3-interpolate": "1 - 3", "d3-selection": "2 - 3", "d3-transition": "2 - 3" } }, "sha512-b8AmV3kfQaqWAuacbPuNbL6vahnOJflOhexLzMMNLga62+/nh0JzvJ0aO/5a5MVgUFGS7Hu1P9P03o3fJkDCyw=="],
+
+    "delaunator": ["delaunator@5.0.1", "", { "dependencies": { "robust-predicates": "^3.0.2" } }, "sha512-8nvh+XBe96aCESrGOqMp/84b13H9cdKbG5P2ejQCh4d4sK9RL4371qou9drQjMhvnPmhWl5hnmqbEE0fXr9Xnw=="],
+
+    "iconv-lite": ["iconv-lite@0.6.3", "", { "dependencies": { "safer-buffer": ">= 2.1.2 < 3.0.0" } }, "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw=="],
+
+    "internmap": ["internmap@2.0.3", "", {}, "sha512-5Hh7Y1wQbvY5ooGgPbDaL5iYLAPzMTUrjMulskHLH6wnv/A+1q5rgEaiuqEjB+oxGXIVZs1FF+R/KPN3ZSQYYg=="],
+
+    "interval-tree-1d": ["interval-tree-1d@1.0.4", "", { "dependencies": { "binary-search-bounds": "^2.0.0" } }, "sha512-wY8QJH+6wNI0uh4pDQzMvl+478Qh7Rl4qLmqiluxALlNvl+I+o5x38Pw3/z7mDPTPS1dQalZJXsmbvxx5gclhQ=="],
+
+    "isoformat": ["isoformat@0.2.1", "", {}, "sha512-tFLRAygk9NqrRPhJSnNGh7g7oaVWDwR0wKh/GM2LgmPa50Eg4UfyaCO4I8k6EqJHl1/uh2RAD6g06n5ygEnrjQ=="],
+
+    "robust-predicates": ["robust-predicates@3.0.2", "", {}, "sha512-IXgzBWvWQwE6PrDI05OvmXUIruQTcoMDzRsOd5CDvHCVLcLHMTSYvOK5Cm46kWqlV3yAbuSpBZdJ5oP5OUoStg=="],
+
+    "rw": ["rw@1.3.3", "", {}, "sha512-PdhdWy89SiZogBLaw42zdeqtRJ//zFd2PgQavcICDUgJT5oW10QCRKbJ6bg4r0/UY2M6BWd5tkxuGFRvCkgfHQ=="],
+
+    "safer-buffer": ["safer-buffer@2.1.2", "", {}, "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="],
   }
 }

package.json

@@ -1,14 +1,17 @@
 {
 	"name": "prun-calc",
 	"version": "0",
-	"description": "GitHub Pages site with TypeScript",
 	"scripts": {
-		"build": "bun build ts/buy.ts ts/roi.ts --outdir www --target browser --sourcemap=external",
+		"build": "bun build ts/buy.ts ts/mat.ts ts/roi.ts --outdir www --target browser --sourcemap=external",
 		"typecheck": "tsgo --noEmit",
 		"serve": "python3 -m http.server -d www 8000"
 	},
-	"devDependencies": {},
+	"devDependencies": {
+		"@types/d3": "^7.4.3"
+	},
 	"dependencies": {
-		"@typescript/native-preview": "^7.0.0-dev"
+		"@observablehq/plot": "^0.6.17",
+		"@typescript/native-preview": "^7.0.0-dev",
+		"d3": "^7.9.0"
 	}
 }

ts/buy.ts

@@ -1,3 +1,4 @@
+import {cachedFetchJSON} from './cache';
 import {setupPopover} from './popover';
 
 const warehouseNames = {
@@ -210,15 +211,6 @@ async function getBids(username: string, apiKey: string, cx: string) {
 	return {bids, orders};
 }
 
-const fetchCache = new Map<string, any>();
-async function cachedFetchJSON(url: string, options?: RequestInit): Promise<any> {
-	if (fetchCache.has(url))
-		return fetchCache.get(url);
-	const response = await fetch(url, options).then((r) => r.json());
-	fetchCache.set(url, response);
-	return response;
-}
-
 class Planet {
 	id: string;
 	name: string;

ts/cache.ts

@@ -0,0 +1,8 @@
+const fetchCache = new Map<string, any>();
+export async function cachedFetchJSON(url: string, options?: RequestInit): Promise<any> {
+	if (fetchCache.has(url))
+		return fetchCache.get(url);
+	const response = await fetch(url, options).then((r) => r.json());
+	fetchCache.set(url, response);
+	return response;
+}

ts/mat.ts

@@ -0,0 +1,101 @@
+import * as Plot from '@observablehq/plot';
+import * as d3 from 'd3';
+import {cachedFetchJSON} from './cache';
+
+const tickerSelect = document.querySelector('select#ticker') as HTMLSelectElement;
+const charts = document.querySelector('#charts')!;
+
+(async function () {
+	const materials: Material[] = await fetch('https://rest.fnar.net/material/allmaterials').then((r) => r.json());
+	const selected = document.location.hash.substring(1);
+	for (const mat of materials.sort((a, b) => a.Ticker.localeCompare(b.Ticker))) {
+		const option = document.createElement('option');
+		option.value = mat.Ticker;
+		option.textContent = `${mat.Ticker} ${mat.Name}`;
+		if (mat.Ticker === selected)
+			option.selected = true;
+		tickerSelect.appendChild(option);
+	}
+	if (selected)
+		render();
+})();
+
+tickerSelect.addEventListener('change', async () => {
+	await render();
+	document.location.hash = tickerSelect.value;
+});
+	
+async function render() {
+	charts.innerHTML = '';
+	const cxpc = await Promise.all([
+		getCXPC(tickerSelect.value, 'NC1'), getCXPC(tickerSelect.value, 'CI1'),
+		getCXPC(tickerSelect.value, 'IC1'), getCXPC(tickerSelect.value, 'AI1'),
+	]);
+	const maxPrice = Math.max(...cxpc.flatMap((cxPrices) => cxPrices.map((p) => p.High)));
+	const maxTraded = Math.max(...cxpc.flatMap((cxPrices) => cxPrices.map((t) => t.Traded)));
+	charts.append(
+		renderPriceChart('NC1', maxPrice, maxTraded, cxpc[0]), renderPriceChart('CI1', maxPrice, maxTraded, cxpc[1]),
+		renderPriceChart('IC1', maxPrice, maxTraded, cxpc[2]), renderPriceChart('AI1', maxPrice, maxTraded, cxpc[3]),
+	);
+}
+
+async function getCXPC(ticker: string, cx: string): Promise<PriceChartPoint[]> {
+	const cxpc: PriceChartPoint[] = await cachedFetchJSON(`https://rest.fnar.net/exchange/cxpc/${ticker}.${cx}`);
+	return cxpc.filter((p) => p.Interval === 'HOUR_TWELVE');
+}
+
+function renderPriceChart(cx: string, maxPrice: number, maxTraded: number, cxpc: PriceChartPoint[]):
+		SVGSVGElement | HTMLElement {
+	return Plot.plot({
+		grid: true,
+		width: charts.getBoundingClientRect().width / 2 - 10,
+		height: 400,
+		y: {axis: 'left', label: cx, domain: [0, maxPrice * 1.1]},
+		marks: [
+			Plot.axisY(d3.ticks(0, maxTraded * 1.5, 10), {
+				label: 'traded',
+				anchor: 'right',
+				y: (d) => (d / maxTraded) * maxPrice / 3,
+			}),
+			Plot.rectY(cxpc, {
+				x: (p) => new Date(p.DateEpochMs),
+				y: (p) => (p.Traded / maxTraded) * maxPrice / 3, // scale traded to price
+				interval: 'day',
+				fill: '#272',
+				fillOpacity: 0.2,
+			}),
+			Plot.ruleX(cxpc, {
+				x: (p) => new Date(p.DateEpochMs),
+				y1: 'Low',
+				y2: 'High',
+				strokeWidth: 5,
+				stroke: '#42a',
+			}),
+			Plot.dot(cxpc, {
+				x: (p) => new Date(p.DateEpochMs),
+				y: (p) => p.Volume / p.Traded,
+				fill: '#a37',
+				r: 2,
+			}),
+			Plot.crosshairX(cxpc, {
+				x: (p) => new Date(p.DateEpochMs),
+				y: (p) => p.Volume / p.Traded,
+				textStrokeWidth: 0,
+			})
+		]
+	});
+}
+
+interface Material {
+	Ticker: string;
+	Name: string;
+}
+
+interface PriceChartPoint {
+	Interval: 'MINUTE_FIVE' | 'MINUTE_FIFTEEN' | 'MINUTE_THIRTY' | 'HOUR_ONE' | 'HOUR_TWO' | 'HOUR_FOUR' | 'HOUR_SIX' | 'HOUR_TWELVE' | 'DAY_ONE' | 'DAY_THREE';
+	DateEpochMs: number;
+	High: number;
+	Low: number;
+	Volume: number;
+	Traded: number;
+}

www/index.html

@@ -12,6 +12,7 @@
 	<main>
 		<p><a href="roi.html">RoI</a></p>
 		<p><a href="buy.html">buy</a></p>
+		<p><a href="mat.html">material</a></p>
 	</main>
 </body>
 </html>

www/mat.html

@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<meta charset="UTF-8">
+	<title>PrUn material</title>
+	<link rel="stylesheet" type="text/css" href="style.css">
+	<link rel="icon" href="https://www.raylu.net/hammer-man.svg" />
+	<meta name="viewport" content="width=device-width, initial-scale=1">
+	<meta name="theme-color" content="#222">
+</head>
+<body>
+	<a href="/">← back</a>
+	<main class="mat">
+		<form>
+			<select id="ticker"></select>
+		</form>
+		<div id="charts"></div>
+	</main>
+	<div id="popover" popover="hint"></div>
+	<script src="mat.js"></script>
+</body>
+</html>

www/style.css

@@ -104,6 +104,13 @@ main.buy {
 	}
 }
 
+main.mat {
+	width: 90%;
+	#charts > svg {
+		display: inline-block;
+	}
+}
+
 #loader {
 	display: none;
 	width: 48px;