3 files changed, 49 insertions, 10 deletions

diff --git a/src/sheet/cell.rs b/src/sheet/cell.rs
index 3b18bde..b46b7d4 100644
--- a/src/sheet/cell.rs
+++ b/src/sheet/cell.rs
@@ -85,7 +85,7 @@ pub struct CellRef {
     row: usize,
     column: usize,
     sheet_id: SheetId,
-    cell: Cell,
+    value: Cell,
 }
 
 impl CellRef {
@@ -98,7 +98,7 @@ impl CellRef {
             sheet_id,
             row,
             column,
-            cell
+            value: cell
         }
     }
 
@@ -109,18 +109,18 @@ impl CellRef {
                     sheet_id,
                     row,
                     column,
-                    cell: cell.clone(),
+                    value: cell.clone(),
                 })
             })
             .unwrap_or(None)
     }
 
     pub fn value(&self) -> Cell {
-        self.cell.clone()
+        self.value.clone()
     }
 
     pub fn set_value(&mut self, cell: Cell) {
-        self.cell = cell.clone();
+        self.value = cell.clone();
         Register::get(self.sheet_id)
             .unwrap()
             .write()
diff --git a/src/sheet/mod.rs b/src/sheet/mod.rs
index f67d55e..501b71e 100644
--- a/src/sheet/mod.rs
+++ b/src/sheet/mod.rs
@@ -90,7 +90,7 @@ impl Clone for Sheet {
     }
 }
 
-struct SheetLuaRef {
+pub struct SheetLuaRef {
     id: SheetId,
 }
 
@@ -98,6 +98,10 @@ impl SheetLuaRef {
     pub fn new(id: SheetId) -> Self {
         Self { id }
     }
+
+    pub fn id(&self) -> SheetId {
+        self.id
+    }
 }
 
 impl LuaUserData for SheetLuaRef {
@@ -122,3 +126,13 @@ impl LuaUserData for SheetLuaRef {
         })
     }
 }
+
+impl<'lua> FromLua<'lua> for SheetLuaRef {
+    fn from_lua(value: LuaValue<'lua>, _: &'lua Lua) -> LuaResult<Self> {
+        if let Some(ud) = value.as_userdata() {
+            ud.take()
+        } else {
+            Err(LuaError::runtime("failed to parse sheet"))
+        }
+    }
+}
diff --git a/src/sheet/register.rs b/src/sheet/register.rs
index 4fca3a3..039c6f0 100644
--- a/src/sheet/register.rs
+++ b/src/sheet/register.rs
@@ -1,8 +1,8 @@
 use std::sync::{Arc, RwLock};
 
-use mlua::{UserData, Value};
+use mlua::{Table, UserData, Value};
 
-use super::{Sheet, SheetLuaRef};
+use super::{cell::Cell, Sheet, SheetLuaRef};
 
 static REGISTER: RwLock<Vec<Arc<RwLock<Sheet>>>> = RwLock::new(Vec::new());
 
@@ -21,6 +21,31 @@ impl Register {
         id
     }
 
+    pub fn create_from_table(table: Table) -> mlua::Result<SheetId> {
+        let mut register = REGISTER.write().unwrap();
+        let id = register.len();
+
+        let height = table.len()? as usize;
+        let mut width: usize = 0;
+
+        for column in table.clone().pairs::<usize, Table>() {
+            width = width.max(column?.1.len()? as usize)
+        }
+
+        let mut sheet = Sheet::new(width, height, id);
+
+        for row_res in table.pairs::<usize, Table>() {
+            let (row, c) = row_res?;
+            for column_res in c.pairs::<usize, Cell>() {
+                let (column, cell) = column_res?;
+                sheet.set_cell(row, column, cell)
+            }
+        }
+
+        register.push(Arc::new(RwLock::new(sheet)));
+        Ok(id)
+    }
+
     pub fn get(id: SheetId) -> Option<Arc<RwLock<Sheet>>> {
         let register = REGISTER.read().unwrap();
 
@@ -34,8 +59,8 @@ impl Register {
 
 impl UserData for Register {
     fn add_methods<'lua, M: mlua::UserDataMethods<'lua, Self>>(methods: &mut M) {
-        methods.add_function_mut("create", |lua, (width, height): (usize, usize)| {
-            let id = Register::create(width, height);
+        methods.add_function_mut("create", |lua, table: Table| {
+            let id = Register::create_from_table(table)?;
             let luaref = SheetLuaRef::new(id);
             if let Ok(ud) = lua.create_userdata(luaref) {
                 Ok(Value::UserData(ud))