{-# LANGUAGE PackageImports #-}
module Kit.Xcode.Builder (renderXcodeProject) where
  import Kit.Xcode.Common
  import Kit.Xcode.ProjectFileTemplate
  import Kit.FlaggedFile
  import Text.PList
  import qualified Text.PList.PrettyPrint as PList (ppFlat)
  import Kit.Util
  import Data.List (nub, sortBy)
  import "mtl" Control.Monad.State
  import System.FilePath
  import Data.Function (on)

  createBuildFile :: Integer -> FlaggedFile -> PBXBuildFile
  createBuildFile i ffpath = PBXBuildFile uuid1 (PBXFileReference uuid2 path) compileFlags
    where uuid1 = uuid i
          uuid2 = uuid $ i + 10000000
          path = flaggedFilePath ffpath
          compileFlags = flaggedFileFlags ffpath

  buildFileFromState :: FlaggedFile -> State [Integer] PBXBuildFile
  buildFileFromState filePath = flip createBuildFile filePath <$> popS 

  -- | Render an Xcode project!
  renderXcodeProject :: 
    [FlaggedFile]    -- ^ Headers  
    -> [FlaggedFile] -- ^ Sources
    -> [FlaggedFile] -- ^ Static Libs
    -> String     -- ^ Output lib name
    -> String     
  renderXcodeProject headers sources libs outputLibName = fst . flip runState [(1::Integer)..] $ do
      headerBuildFiles <- mapM buildFileFromState headers
      sourceBuildFiles <- mapM buildFileFromState sources
      libBuildFiles <- mapM buildFileFromState libs -- Build File Items
      let allBuildFiles = sourceBuildFiles ++ headerBuildFiles ++ libBuildFiles
          -- Build And FileRef sections
          bfs = buildFileSection allBuildFiles
          frs = fileReferenceSection (map buildFileReference allBuildFiles) outputLibName 
          -- Groups
          classes = classesGroup $ sortBy (compare `on` (takeFileName . fileReferencePath)) $ map buildFileReference (sourceBuildFiles ++ headerBuildFiles)
          fg = frameworksGroup $ map buildFileReference libBuildFiles
          -- Phases
          headersPhase = headersBuildPhase headerBuildFiles
          srcsPhase = sourcesBuildPhase sourceBuildFiles
          frameworksPhase = frameworksBuildPhase libBuildFiles
          -- UUID indices
          libDirs = nub $ map (dropFileName . flaggedFilePath) libs 
      return . PList.ppFlat $ makeProjectPList (bfs ++ frs ++ [classes, headersPhase, srcsPhase, frameworksPhase, fg]) libDirs

  buildFileSection :: [PBXBuildFile] -> [PListObjectItem]
  buildFileSection bfs = map buildFileItem bfs ++ [
      "4728C530117C02B10027D7D1" ~> buildFile kitConfigRefUUID "",
      "AA747D9F0F9514B9006C5449" ~> buildFile "AA747D9E0F9514B9006C5449" "",
      "AACBBE4A0F95108600F1A2B1" ~> buildFile "AACBBE490F95108600F1A2B1" ""
    ]

  fileReferenceSection :: [PBXFileReference] -> String -> [PListObjectItem]
  fileReferenceSection refs archiveName = map fileReferenceItem refs ++ [
  		kitConfigRefUUID ~> obj [ 
        "isa" ~> val "PBXFileReference",
        "fileEncoding" ~> val "4",
        "lastKnownFileType" ~> val "text.xcconfig",
        "path" ~> val "DepsOnly.xcconfig",
        "sourceTree" ~> val "<group>"
        ],
      "AA747D9E0F9514B9006C5449" ~> obj [
        "isa" ~> val "PBXFileReference",
        "fileEncoding" ~> val "4",
        "lastKnownFileType" ~> val "sourcecode.c.h",
        "path" ~> val "Prefix.pch",
        "sourceTree" ~> val "SOURCE_ROOT"
        ],
      "AACBBE490F95108600F1A2B1" ~> obj [
        "isa" ~> val "PBXFileReference",
        "lastKnownFileType" ~> val "wrapper.framework",
        "name" ~> val "Foundation.framework", 
        "path" ~> val "System/Library/Frameworks/Foundation.framework",
        "sourceTree" ~> val "SDKROOT"
        ],
      productRefUUID ~> obj [
        "isa" ~> val "PBXFileReference",
        "explicitFileType" ~> val "archive.ar",
        "includeInIndex" ~> val "0",
        "path" ~> val archiveName,
        "sourceTree" ~> val "BUILT_PRODUCTS_DIR"
      ]
    ]

  classesGroup :: [PBXFileReference] -> PListObjectItem 
  classesGroup files = classesGroupUUID ~> group "Classes" (map (val . fileReferenceId) files)
	
  frameworksGroup :: [PBXFileReference] -> PListObjectItem
  frameworksGroup files = frameworksGroupUUID ~> group "Frameworks" (val "AACBBE490F95108600F1A2B1" :  map (val . fileReferenceId) files)

  frameworksBuildPhase :: [PBXBuildFile] -> PListObjectItem  
  frameworksBuildPhase libs = frameworksBuildPhaseUUID ~> obj [
            "isa" ~> val "PBXFrameworksBuildPhase",
            "buildActionMask" ~> val "2147483647",
            "files" ~> arr (val "AACBBE4A0F95108600F1A2B1" : map (val . buildFileId) libs),
            "runOnlyForDeploymentPostprocessing" ~> val "0"
          ]

  headersBuildPhase :: [PBXBuildFile] -> PListObjectItem
  headersBuildPhase bfs = headersBuildPhaseUUID ~> obj [
    "isa" ~> val "PBXHeadersBuildPhase",
    "buildActionMask" ~> val "2147483647",
    "files" ~> arr (val "AA747D9F0F9514B9006C5449" : map (val . buildFileId) bfs),
    "runOnlyForDeploymentPostprocessing" ~> val "0"
	  ]
	
  sourcesBuildPhase :: [PBXBuildFile] -> PListObjectItem
  sourcesBuildPhase bfs = sourcesBuildPhaseUUID ~> obj [
    "isa" ~> val "PBXSourcesBuildPhase",
    "buildActionMask" ~> val "22147483647147483647",
    "files" ~>  arr (map (val . buildFileId) bfs),
    "runOnlyForDeploymentPostprocessing" ~> val "0"
    ]