#! /bin/bash

expect () {

  if [[ "$1" != "$2" ]]; then
    echo "FAILURE: $3"
    echo "Expected $1 and got $2."
  else
    echo "."
  fi
}

expect_not_equal () {
  if [[ "$1" = "$2" ]]; then
    echo "FAILURE: $3"
    echo "Expected $1 and got $2."
  else
    echo "."
  fi
}

# make sure we have modules installed
npm install .. > /dev/null 2>&1

# Make sure redis is running
redis-server > /dev/null 2>&1 &
REDIS_PID=$!

# start the server
spark -C .. > /dev/null 2>&1 &
PID=$!
sleep 1

HOST="http://localhost:3700"

RESULT=`curl --silent "${HOST}/files/new"  -X POST \
  -H "Content-Type: application/json" \
  -d '[{
        "size": 35,
        "lastModifiedDate": "2011-11-08T00:15:06.000Z",
        "fileName": "foobar.txt",
        "type": "text/plain; charset=utf-8"
      }]'`

ID=`echo ${RESULT} | json-cherry-pick 0` || exit

RESPONSE=`curl --silent "${HOST}/files"  -X POST \
  --form ${ID}=@foobar.txt`
EXPECTED="[{\"result\":\"success\",\"data\":\"File ${ID} stored successfully.\"}]"
expect "$EXPECTED" "$RESPONSE" "File not uploaded successfully."


RESPONSE=`curl --silent "${HOST}/files/${ID}/test.txt" -X GET`
EXPECTED="¬˚∆˙ß∂ƒ¬˚∆˙∑øˆ´¨©ƒ˙¬∂ß∆˙ƒ¬∫√ç≈µ˙©ß˚∂∆ƒ©˙What the dickens is going on here?"
expect "$EXPECTED" "$RESPONSE" "File downloaded not equal to file stored."

# Test multiple file upload
RESULT=`curl --silent "${HOST}/files/new"  -X POST \
  -H "Content-Type: application/json" \
  -d'[{"size":4460,"lastModifiedDate":"2011-10-29T20:22:56.000Z","fileSize":4460,"name":"temp.txt","type":"text/plain","fileName":"test.txt"},
      {"size":749717,"lastModifiedDate":"2011-11-08T00:59:14.000Z","fileSize":749717,"name":"IMG_0366.JPG","type":"image/jpeg","fileName":"IMG_0366.JPG"},
      {"size":50615,"lastModifiedDate":"2011-11-10T23:00:31.000Z","fileSize":50615,"name":"gopher.jpg","type":"image/jpeg","webkitRelativePath":"","fileName":"gopher.jpg"}
     ]'`

ID0=`echo ${RESULT} | json-cherry-pick 0` || exit
ID1=`echo ${RESULT} | json-cherry-pick 1` || exit
ID2=`echo ${RESULT} | json-cherry-pick 2` || exit

RESPONSE=`curl --silent "${HOST}/files"  -X POST \
  --form ${ID0}=@temp.txt --form ${ID1}=@IMG_0366.JPG --form ${ID2}=@gopher.jpg`
EXPECTED="[\"${ID0}\",\"${ID1}\",\"${ID2}\"]"
expect "$EXPECTED" "$RESULT" "Multiple file uploads should return an array of the IDs for those files."
# Check to see if these uploads all worked
RESPONSE=`curl --silent "${HOST}/files/${ID0}/test.txt" -X GET`
EXPECTED=`cat temp.txt`
expect "$EXPECTED" "$RESPONSE" "Uh oh"


RESPONSE=`curl --silent "${HOST}/files/${ID1}/test.txt" -X GET`
EXPECTED=`cat IMG_0366.JPG`
expect "$EXPECTED" "$RESPONSE" "Uh oh"

RESPONSE=`curl --silent "${HOST}/files/${ID2}/test.txt" -X GET`
EXPECTED=`cat gopher.jpg`
expect "$EXPECTED" "$RESPONSE" "Uh oh"

# Test with a bogus id
RESPONSE=`curl --silent "${HOST}/files"  -X POST \
  --form SVEN=@foobar.txt`
EXPECTED="[{\"result\":\"error\",\"data\":\"No metadata for id 'SVEN'.\"}]"
ERROR_MESSAGE="Posting a file without an ID should return an error message."
expect "$EXPECTED" "$RESPONSE" "$ERROR_MESSAGE"


RESPONSE=`curl --silent "${HOST}/files/SVEN/test.txt" -X GET`
EXPECTED="{\"result\":\"error\",\"data\":\"No files uploaded for SVEN.\"}"
expect "$EXPECTED" "$RESPONSE" "Attempting to download a non-existent file should return an error."



RESPONSE=`curl --silent "${HOST}/files/ABC" -X DELETE`
EXPECTED="{\"result\":\"error\",\"data\":\"No files uploaded for ABC.\"}"
expect "$EXPECTED" "$RESPONSE" "Deleting a nonexistent file should return an error."

RESPONSE=`curl --silent "${HOST}/files/${ID}" -X DELETE`
EXPECTED="{\"result\":\"success\",\"data\":\"Successfully deleted ${ID}.\"}"
expect "$EXPECTED" "$RESPONSE" "Deleting an existing file should delete it."

# Test that getting the deleted file now returns an error
RESPONSE=`curl --silent "${HOST}/files/${ID}/foobar.bin" -X GET`
EXPECTED="{\"result\":\"error\",\"data\":\"No files uploaded for ${ID}.\"}"
expect "$EXPECTED" "$RESPONSE" "Getting a deleted file should return an error, but not crash the server."


# Test getting metadata
# TODO: how to test if the timestamp will be different every time?
RESPONSE=`curl --silent "${HOST}/meta/${ID0}" -X GET`
EXPECTED="{\"success\":true,\"result\":{\"size\":4460,\"lastModifiedDate\":\"2011-10-29T20:22:56.000Z\",\"fileSize\":4460,\"name\":\"temp.txt\",\"type\":\"text/plain\",\"fileName\":\"test.txt\",\"timestamp\":1321285910694,\"sha1checksum\":\"a3067b953f1fb29fb6b65e66a47944af4775b70b\"}}"
expect "$EXPECTED" "$RESPONSE" "Querying for metadata with a valid ID should return the metadata for that file."
echo "Just the timestamp should be different. If you think of a good way to compare dynamically generated timestamps let me know."

RESPONSE=`curl --silent "${HOST}/meta/FOOOOOBARRR" -X GET`
EXPECTED="{\"error\":true,\"result\":\"error\",\"errors\":[\"No metadata for FOOOOOBARRR.\"]}"
expect "$EXPECTED" "$RESPONSE" "Querying for metadata for a non-existent ID should return an error."

# Test that user-specified IDs are disallowed by default
RESULT=`curl --silent "${HOST}/files/new"  -X POST \
  -H "Content-Type: application/json" \
  -d '[{
        "size": 35,
        "lastModifiedDate": "2011-11-08T00:15:06.000Z",
        "fileName": "foobar.txt",
        "type": "text/plain; charset=utf-8",
        "id": "123456"
      }]'`
ID=`echo ${RESULT} | json-cherry-pick 0` || exit
expect_not_equal "$ID" "123456" "Users should not be able to specify file IDs by default."

kill $PID

# Start a new server with user-specified ids allowed
mv ../config.js ../config.normal.js && mv config.js ../config.js
spark -C .. -c config.js > /dev/null 2>&1 &
PID=$!
sleep 1
RESULT=`curl --silent "${HOST}/files/new"  -X POST \
  -H "Content-Type: application/json" \
  -d '[{
        "size": 35,
        "lastModifiedDate": "2011-11-08T00:15:06.000Z",
        "fileName": "foobar.txt",
        "type": "text/plain; charset=utf-8",
        "id": "123456"
      }]'`
ID=`echo ${RESULT} | json-cherry-pick 0` || exit
expect "123456" "$ID" "Users should be able to specify file IDs if the setting is allowed."

kill $PID
kill $REDIS_PID > /dev/null 2>&1

mv ../config.js ./config.js && mv ../config.normal.js ../config.js