feat: implement 10roll command

Cargo.lock

@@ -6,6 +6,12 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
 
+[[package]]
+name = "adler32"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aae1277d39aeec15cb388266ecc24b11c80469deae6067e17a1a7aa9e5c1f234"
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.15"
@@ -22,8 +28,10 @@ dependencies = [
  "bluearch-recruitment",
  "dotenv",
  "env_logger",
+ "image",
  "lazy_static",
  "log",
+ "reqwest",
  "serde",
  "serde_json",
  "serenity",
@@ -104,7 +112,7 @@ dependencies = [
 [[package]]
 name = "bluearch-recruitment"
 version = "0.1.0"
-source = "git+https://github.com/Paoda/bluearch-recruitment.git?branch=main#c209e32bdfcd05023f00f59001150d3389790ade"
+source = "git+https://github.com/Paoda/bluearch-recruitment.git?branch=main#c7b275ea2273f0d38ce9917be786feced1ef422e"
 dependencies = [
  "rand 0.8.3",
  "serde",
@@ -118,6 +126,12 @@ version = "3.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "099e596ef14349721d9016f6b80dd3419ea1bf289ab9b44df8e4dfd3a005d5d9"
 
+[[package]]
+name = "bytemuck"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a4bad0c5981acc24bc09e532f35160f952e35422603f0563cd7a73c2c2e65a0"
+
 [[package]]
 name = "byteorder"
 version = "1.4.2"
@@ -162,6 +176,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "color_quant"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
+
 [[package]]
 name = "command_attr"
 version = "0.3.3"
@@ -173,6 +193,28 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "const_fn"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28b9d6de7f49e22cf97ad17fc4036ece69300032f45f78f30b4a4482cdc3f4a6"
+
+[[package]]
+name = "core-foundation"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a89e2ae426ea83155dccf10c0fa6b1463ef6d5fcb44cee0b224a408fa640a62"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea221b5284a47e40033bf9b66f35f984ec0ea2931eb03505246cd27a963f981b"
+
 [[package]]
 name = "cpuid-bool"
 version = "0.1.2"
@@ -188,6 +230,62 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dca26ee1f8d361640700bde38b2c37d8c22b3ce2d360e1fc1c74ea4b0aa7d775"
+dependencies = [
+ "cfg-if",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-deque"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94af6efb46fef72616855b036a624cf27ba656ffc9be1b9a3c931cfc7749a9a9"
+dependencies = [
+ "cfg-if",
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1aaa739f95311c2c7887a76863f500026092fb1dce0161dab577e559ef3569d"
+dependencies = [
+ "cfg-if",
+ "const_fn",
+ "crossbeam-utils",
+ "lazy_static",
+ "memoffset",
+ "scopeguard",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02d96d1e189ef58269ebe5b97953da3274d83a93af647c2ddd6f9dab28cedb8d"
+dependencies = [
+ "autocfg",
+ "cfg-if",
+ "lazy_static",
+]
+
+[[package]]
+name = "deflate"
+version = "0.8.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73770f8e1fe7d64df17ca66ad28994a0a623ea497fa69486e14984e715c5d174"
+dependencies = [
+ "adler32",
+ "byteorder",
+]
+
 [[package]]
 name = "digest"
 version = "0.9.0"
@@ -203,6 +301,12 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
 
+[[package]]
+name = "either"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.28"
@@ -214,9 +318,9 @@ dependencies = [
 
 [[package]]
 name = "env_logger"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26ecb66b4bdca6c1409b40fb255eefc2bd4f6d135dab3c3124f80ffa2a9661e"
+checksum = "17392a012ea30ef05a610aa97dfb49496e71c9f676b27879922ea5bdf60d9d3f"
 dependencies = [
  "atty",
  "humantime",
@@ -234,7 +338,7 @@ dependencies = [
  "cfg-if",
  "crc32fast",
  "libc",
- "miniz_oxide",
+ "miniz_oxide 0.4.3",
 ]
 
 [[package]]
@@ -243,6 +347,21 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.0.0"
@@ -368,6 +487,16 @@ dependencies = [
  "wasi 0.10.2+wasi-snapshot-preview1",
 ]
 
+[[package]]
+name = "gif"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02efba560f227847cb41463a7395c514d127d4f74fff12ef0137fff1b84b96c4"
+dependencies = [
+ "color_quant",
+ "weezl",
+]
+
 [[package]]
 name = "h2"
 version = "0.3.0"
@@ -481,6 +610,19 @@ dependencies = [
  "webpki",
 ]
 
+[[package]]
+name = "hyper-tls"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
+dependencies = [
+ "bytes 1.0.1",
+ "hyper",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+]
+
 [[package]]
 name = "idna"
 version = "0.2.1"
@@ -492,6 +634,25 @@ dependencies = [
  "unicode-normalization",
 ]
 
+[[package]]
+name = "image"
+version = "0.23.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "293f07a1875fa7e9c5897b51aa68b2d8ed8271b87e1a44cb64b9c3d98aabbc0d"
+dependencies = [
+ "bytemuck",
+ "byteorder",
+ "color_quant",
+ "gif",
+ "jpeg-decoder",
+ "num-iter",
+ "num-rational",
+ "num-traits",
+ "png",
+ "scoped_threadpool",
+ "tiff",
+]
+
 [[package]]
 name = "indexmap"
 version = "1.6.1"
@@ -523,6 +684,15 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
+[[package]]
+name = "jpeg-decoder"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "229d53d58899083193af11e15917b5640cd40b29ff475a1fe4ef725deb02d0f2"
+dependencies = [
+ "rayon",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.47"
@@ -565,6 +735,15 @@ version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
+[[package]]
+name = "memoffset"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "157b4208e3059a8f9e78d559edc658e13df41410cb3ae03979c83130067fdd87"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.16"
@@ -581,6 +760,15 @@ dependencies = [
  "unicase",
 ]
 
+[[package]]
+name = "miniz_oxide"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "791daaae1ed6889560f8c4359194f56648355540573244a5448a83ba1ecc7435"
+dependencies = [
+ "adler32",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.4.3"
@@ -614,6 +802,24 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8d96b2e1c8da3957d58100b09f102c6d9cfdfced01b7ec5a8974044bb09dbd4"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "ntapi"
 version = "0.3.6"
@@ -633,6 +839,28 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-iter"
+version = "0.1.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2021c8337a54d21aca0d59a92577a029af9431cb59b909b03252b9c164fad59"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-rational"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12ac428b1cb17fce6f731001d307d351ec70a6d202fc2e60f7d4c5e42d8f4f07"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.14"
@@ -664,6 +892,39 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
+[[package]]
+name = "openssl"
+version = "0.10.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "038d43985d1ddca7a9900630d8cd031b56e4794eecc2e9ea39dd17aa04399a70"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "foreign-types",
+ "lazy_static",
+ "libc",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "921fc71883267538946025deffb622905ecad223c28efbfdef9bb59a0175f3e6"
+dependencies = [
+ "autocfg",
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -722,6 +983,24 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
+
+[[package]]
+name = "png"
+version = "0.16.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c3287920cb847dee3de33d301c463fba14dda99db24214ddf93f83d3021f4c6"
+dependencies = [
+ "bitflags",
+ "crc32fast",
+ "deflate",
+ "miniz_oxide 0.3.7",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.10"
@@ -839,6 +1118,40 @@ dependencies = [
  "rand_core 0.6.1",
 ]
 
+[[package]]
+name = "rayon"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b0d8e0819fadc20c74ea8373106ead0600e3a67ef1fe8da56e39b9ae7275674"
+dependencies = [
+ "autocfg",
+ "crossbeam-deque",
+ "either",
+ "rayon-core",
+]
+
+[[package]]
+name = "rayon-core"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ab346ac5921dc62ffa9f89b7a773907511cdfa5490c572ae9be1be33e8afa4a"
+dependencies = [
+ "crossbeam-channel",
+ "crossbeam-deque",
+ "crossbeam-utils",
+ "lazy_static",
+ "num_cpus",
+]
+
+[[package]]
+name = "redox_syscall"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05ec8ca9416c5ea37062b502703cd7fcb207736bc294f6e0cf367ac6fc234570"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "regex"
 version = "1.4.3"
@@ -857,6 +1170,15 @@ version = "0.6.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5eb417147ba9860a96cfe72a0b93bf88fee1744b5636ec99ab20c1aa9376581"
 
+[[package]]
+name = "remove_dir_all"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "reqwest"
 version = "0.11.0"
@@ -872,12 +1194,14 @@ dependencies = [
  "http-body",
  "hyper",
  "hyper-rustls",
+ "hyper-tls",
  "ipnet",
  "js-sys",
  "lazy_static",
  "log",
  "mime",
  "mime_guess",
+ "native-tls",
  "percent-encoding",
  "pin-project-lite",
  "rustls",
@@ -885,6 +1209,7 @@ dependencies = [
  "serde_json",
  "serde_urlencoded",
  "tokio",
+ "tokio-native-tls",
  "tokio-rustls",
  "url",
  "wasm-bindgen",
@@ -928,6 +1253,28 @@ version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
 
+[[package]]
+name = "schannel"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f05ba609c234e60bee0d547fe94a4c7e9da733d1c962cf6e59efa4cd9c8bc75"
+dependencies = [
+ "lazy_static",
+ "winapi",
+]
+
+[[package]]
+name = "scoped_threadpool"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
+
+[[package]]
+name = "scopeguard"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+
 [[package]]
 name = "sct"
 version = "0.6.0"
@@ -938,6 +1285,29 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "security-framework"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1759c2e3c8580017a484a7ac56d3abc5a6c1feadf88db2f3633f12ae4268c69"
+dependencies = [
+ "bitflags",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f99b9d5e26d2a71633cc4f2ebae7cc9f874044e0c351a27e17892d76dce5678b"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
 [[package]]
 name = "serde"
 version = "1.0.123"
@@ -1073,6 +1443,20 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "tempfile"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "rand 0.8.3",
+ "redox_syscall",
+ "remove_dir_all",
+ "winapi",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.1.2"
@@ -1091,6 +1475,17 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "tiff"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a53f4706d65497df0c4349241deddf35f84cee19c87ed86ea8ca590f4464437"
+dependencies = [
+ "jpeg-decoder",
+ "miniz_oxide 0.4.3",
+ "weezl",
+]
+
 [[package]]
 name = "time"
 version = "0.1.43"
@@ -1143,6 +1538,16 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7d995660bd2b7f8c1568414c1126076c13fbb725c40112dc0120b78eb9b717b"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-rustls"
 version = "0.22.0"
@@ -1316,6 +1721,12 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f4bf03e0ca70d626ecc4ba6b0763b934b6f2976e8c744088bb3c1d646fbb1ad0"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
+
 [[package]]
 name = "version_check"
 version = "0.9.2"
@@ -1450,6 +1861,12 @@ dependencies = [
  "webpki",
 ]
 
+[[package]]
+name = "weezl"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a32b378380f4e9869b22f0b5177c68a5519f03b3454fde0b291455ddbae266c"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"

Cargo.toml

@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-bluearch-recruitment = { git = "https://github.com/Paoda/bluearch-recruitment.git", branch = "main", version = "^0.1" }
+bluearch-recruitment = { git = "https://github.com/Paoda/bluearch-recruitment.git", branch = "main" }
 dotenv = "^0.15"
 env_logger = "^0.8"
 lazy_static = "^1.4"
@@ -16,3 +16,5 @@ serde = "^1.0"
 serde_json = "^1.0"
 serenity = "^0.10"
 tokio = { version = "^1.0", features = ["macros", "rt-multi-thread"] }
+image = "^0.23"
+reqwest = "^0.11"

src/main.rs

@@ -3,28 +3,32 @@ use bluearch_recruitment::gacha::{GachaBuilder, Rarity, Recruitment};
 use bluearch_recruitment::i18n::Language;
 use bluearch_recruitment::student::Student;
 use dotenv::dotenv;
+use image::codecs::jpeg::JpegEncoder;
+use image::imageops::FilterType;
+use image::io::Reader as ImageReader;
+use image::{ColorType, ImageEncoder, Rgba, RgbaImage};
 use lazy_static::lazy_static;
 use log::{debug, error, info, warn};
 use serenity::async_trait;
 use serenity::client::{Client, Context, EventHandler};
+use serenity::framework::standard::macros::{command, group, help};
 use serenity::framework::standard::{
-    help_commands,
+    help_commands, Args, CommandGroup, CommandResult, HelpOptions, StandardFramework,
-    macros::{command, group, help},
-    Args, CommandGroup, CommandResult, HelpOptions, StandardFramework,
 };
 use serenity::model::channel::Message;
 use serenity::model::id::UserId;
 use serenity::utils::Colour;
-use std::collections::HashSet;
+use std::collections::{HashMap, HashSet};
-use std::env::{self};
+use std::env;
-use std::time::{SystemTime, UNIX_EPOCH};
+use std::io::Cursor;
-
+use std::sync::Mutex;
+use std::time::{Instant, SystemTime, UNIX_EPOCH};
 #[group]
 #[commands(ping, source)]
 struct General;
 
 #[group]
-#[commands(roll, banner)]
+#[commands(roll, banner, roll10)]
 struct RecruitmentCommands;
 
 struct Handler;
@@ -40,9 +44,12 @@ const IMG_SOURCE: &str = "https://thearchive.gg";
 const BANNER_IMG_URL: &str = "https://static.wikia.nocookie.net/blue-archive/images/e/e0/Gacha_Banner_01.png/revision/latest/";
 const BLUE_ARCHIVE_BLUE: Colour = Colour::from_rgb(0, 215, 251);
 
+type Cache = Mutex<HashMap<String, RgbaImage>>;
+
 lazy_static! {
     static ref STUDENTS: Vec<Student> = serde_json::from_str(STUDENTS_JSON).unwrap();
     static ref BANNER: Banner = create_banner();
+    static ref CACHE: Cache = Mutex::new(HashMap::new());
 }
 
 #[tokio::main]
@@ -134,6 +141,7 @@ async fn roll(ctx: &Context, msg: &Message) -> CommandResult {
     let img_url = format!("{}/Characters/{}.png", CDN_URL, url_name);
     let title_url = format!("https://www.thearchive.gg/characters/{}", url_name);
     let icon_url = format!("{}/Icons/icon-brand.png", CDN_URL);
+    let rarity_colour = get_rarity_colour(student.rarity);
 
     let rarity_str = match student.rarity {
         Rarity::One => ":star:",
@@ -141,12 +149,6 @@ async fn roll(ctx: &Context, msg: &Message) -> CommandResult {
         Rarity::Three => ":star::star::star:",
     };
 
-    let rarity_colour = match student.rarity {
-        Rarity::One => Colour::from_rgb(227, 234, 240),
-        Rarity::Two => Colour::from_rgb(255, 248, 124),
-        Rarity::Three => Colour::from_rgb(253, 198, 229),
-    };
-
     channel
         .send_message(ctx, |m| {
             m.embed(|embed| {
@@ -168,6 +170,169 @@ async fn roll(ctx: &Context, msg: &Message) -> CommandResult {
     Ok(())
 }
 
+#[command]
+#[aliases(tenroll)]
+async fn roll10(ctx: &Context, msg: &Message) -> CommandResult {
+    let author_name = format!("{}#{}", msg.author.name, msg.author.discriminator);
+    info!("{} requested a ten roll", author_name);
+    let channel = msg.channel_id;
+
+    let typing = channel.start_typing(&ctx.http)?;
+
+    const RESIZE_WIDTH: u32 = 202; // OG: 404 (2020-02-11)
+    const RESIZE_HEIGHT: u32 = 228; // OG: 456 (2020-02-11)
+    const IMG_WIDTH: u32 = RESIZE_WIDTH * 5;
+    const IMG_HEIGHT: u32 = RESIZE_HEIGHT * 2;
+
+    let mut collage = RgbaImage::new(IMG_WIDTH, IMG_HEIGHT);
+    let mut images: Vec<RgbaImage> = Vec::with_capacity(10);
+
+    let students = BANNER.roll10();
+    let mut max_rarity = Rarity::One;
+
+    let start = Instant::now();
+    for student in students.iter() {
+        let eng_name = student.name.get(Language::English).unwrap();
+        let url_name = if eng_name == "Junko" {
+            "Zunko"
+        } else {
+            &eng_name
+        };
+
+        max_rarity = max_rarity.max(student.rarity);
+
+        let img_url = format!("{}/Characters/{}.png", CDN_URL, url_name);
+        let image = get_image_from_url(&img_url, RESIZE_WIDTH, RESIZE_HEIGHT).await;
+
+        images.push(image);
+    }
+    let elapsed_ms = (Instant::now() - start).as_millis();
+    info!("10-roll, DL, and resize took {}ms", elapsed_ms);
+
+    let start = Instant::now();
+    for x in (0..IMG_WIDTH).step_by(RESIZE_WIDTH as usize) {
+        let index: usize = (((IMG_WIDTH - x) / RESIZE_WIDTH) - 1) as usize;
+
+        // Top Image
+        image::imageops::overlay(&mut collage, &images[index], x, 0);
+
+        // Bottom Image
+        image::imageops::overlay(&mut collage, &images[index + 5], x, RESIZE_HEIGHT);
+    }
+    let elapsed_ms = (Instant::now() - start).as_millis();
+    info!("Collage Build took {}ms", elapsed_ms);
+
+    let mut jpeg = Vec::new();
+    let encoder = JpegEncoder::new(&mut jpeg);
+
+    let write_result = encoder.write_image(&collage, IMG_WIDTH, IMG_HEIGHT, ColorType::Rgba8);
+
+    if let Err(err) = write_result {
+        error!("Failed to Encode JPEG: {:?}", err);
+        msg.reply(
+            ctx,
+            "アロナ failed to perform your 10-roll. Please try again",
+        )
+        .await?;
+        return Ok(());
+    }
+
+    let files = vec![(jpeg.as_slice(), "result.jpeg")];
+    let _ = typing.stop();
+    channel
+        .send_files(ctx, files, |m| {
+            m.embed(|embed| {
+                embed
+                    .title(format!("{} 10-roll", BANNER.name))
+                    .description(BANNER.name.get(Language::English).unwrap())
+                    .attachment("result.jpeg")
+                    .colour(get_rarity_colour(max_rarity))
+            })
+        })
+        .await?;
+    Ok(())
+}
+
+async fn get_image_from_url(url: &str, width: u32, height: u32) -> RgbaImage {
+    if let Some(img) = check_cache(url) {
+        info!("Cache Hit for {}", url);
+        return img;
+    }
+
+    info!("Downloading {}", url);
+    match reqwest::get(url).await {
+        Ok(resp) => match resp.bytes().await {
+            Ok(bytes) => match ImageReader::new(Cursor::new(bytes)).with_guessed_format() {
+                Ok(img_reader) => match img_reader.decode() {
+                    Ok(dynamic_img) => {
+                        info!("Successfully decoded image from {}", url);
+                        let img = image::imageops::resize(
+                            &dynamic_img,
+                            width,
+                            height,
+                            FilterType::Nearest,
+                        );
+
+                        add_to_cache(url, &img);
+                        img
+                    }
+                    Err(err) => {
+                        warn!("Decoding Error: {}", err);
+                        generate_default_img(width, height)
+                    }
+                },
+                Err(err) => {
+                    error!("Unexpected IO Error Occurred: {}", err);
+                    // We can recover here, but maybe it's worth panicking here?
+                    generate_default_img(width, height)
+                }
+            },
+
+            Err(err) => {
+                warn!("Response Parse failed: {:}?", err);
+                generate_default_img(width, height)
+            }
+        },
+        Err(err) => {
+            warn!("Download failed: {:?}", err);
+            generate_default_img(width, height)
+        }
+    }
+}
+
+fn get_rarity_colour(rarity: Rarity) -> Colour {
+    match rarity {
+        Rarity::One => Colour::from_rgb(227, 234, 240),
+        Rarity::Two => Colour::from_rgb(255, 248, 124),
+        Rarity::Three => Colour::from_rgb(253, 198, 229),
+    }
+}
+
+fn generate_default_img(width: u32, height: u32) -> RgbaImage {
+    let mut img = RgbaImage::new(width, height);
+    for x in 0..height {
+        for y in 0..width {
+            img.put_pixel(x, y, Rgba([160, 32, 240, 1]));
+        }
+    }
+
+    img
+}
+
+fn check_cache(url: &str) -> Option<RgbaImage> {
+    if let Ok(lock) = CACHE.lock() {
+        lock.get(url).cloned()
+    } else {
+        None
+    }
+}
+
+fn add_to_cache(url: &str, img: &RgbaImage) {
+    if let Ok(ref mut lock) = CACHE.lock() {
+        lock.insert(url.to_string(), img.clone());
+    }
+}
+
 #[command]
 async fn banner(ctx: &Context, msg: &Message) -> CommandResult {
     let author_name = format!("{}#{}", msg.author.name, msg.author.discriminator);
@@ -232,13 +397,13 @@ pub fn create_banner() -> Banner {
     let pool: Vec<Student> = STUDENTS
         .iter()
         .filter(|student| student.name != "ノゾミ")
-        .map(|student| student.clone())
+        .cloned()
         .collect();
 
     let sparkable: Vec<Student> = pool
         .iter()
         .filter(|student| student.name == "ホシノ" || student.name == "シロコ")
-        .map(|student| student.clone())
+        .cloned()
         .collect();
 
     let gacha = GachaBuilder::new(79.0, 18.5, 2.5)