5 files changed, 148 insertions, 42 deletions

diff --git a/src/cube.c b/src/cube.c
index fce0683..97f7844 100644
--- a/src/cube.c
+++ b/src/cube.c
@@ -47,3 +47,5 @@
 #include "moves.h"
 #include "solve_h48.h"
 #include "solve_generic.h"
+
+#include "cube_public.h"
diff --git a/src/cube.h b/src/cube.h
index d30c1d4..b5f4211 100644
--- a/src/cube.h
+++ b/src/cube.h
@@ -1,32 +1,65 @@
-/* TODO: change cube to const char [static 22], or const char * */
-/* TODO: return error code */
-/* TODO: implement all of this, or move the implementation to cube_public.h */
-/* TODO: document in a separate file, possibly leave here 1-line comments */
+/*
+All the functions below return 0 in case of success and a positive number
+in case of error. See (TODO: documentation) for details.
+*/
 
-cube_t compose(cube_t cube, cube_t perm);
-cube_t inverse(cube_t cube);
-cube_t solvedcube(void);
-cube_t applymoves(cube_t, const char *);
-cube_t applytrans(cube_t, const char *);
-cube_t readcube(const char *format, const char *buf);
-void writecube(const char *format, cube_t cube, char *buf);
-int64_t solve(
-        cube_t cube,
+int nissy_compose(
+        const char cube[static 22],
+        const char permutation[static 22],
+        char result[static 22]
+);
+
+int nissy_inverse(
+        const char cube[static 22],
+        char result[static 22]
+);
+
+int nissy_applyoves(
+        const char cube[static 22],
+        const char *moves,
+        char result[static 22]
+);
+
+int nissy_applytrans(
+        const char cube[static 22],
+        const char *transformation,
+        char result[static 22]
+);
+
+int nissy_frommoves(
+        const char *moves,
+        char result[static 22]
+);
+
+int nissy_readcube(
+        const char *format,
+        const char *cube_string,
+        char result[static 22]
+);
+
+int nissy_writecube(
+        const char *format,
+        const char cube[static 22],
+        char *result
+);
+
+int nissy_gendata(
+        const char *solver,
+        const char *options,
+        void *generated_data,
+        int64_t *generated_bytes
+);
+
+int nissy_solve(
+        const char cube[static 22],
         const char *solver, 
         const char *options,
         const char *nisstype,
         int8_t minmoves,
         int8_t maxmoves,
-        int64_t maxsols,
+        int64_t maxsolutions,
         int8_t optimal,
-        const void *data,         
-        char *solutions
-);
-void multisolve(
-        int n,
-        cube_t *cube,
-        const char *solver,
         const void *data,
-        char *sols
+        char *solutions,
+        int *n_solutions
 );
-int64_t gendata(const char *solver, const char *options, void *data);
diff --git a/src/cube_generic.h b/src/cube_generic.h
index 6b675ee..7ff9992 100644
--- a/src/cube_generic.h
+++ b/src/cube_generic.h
@@ -8,6 +8,7 @@ _static bool issolved(cube_t);
 _static bool iserror(cube_t);
 _static cube_t applymoves(cube_t, const char *);
 _static cube_t applytrans(cube_t, const char *);
+_static cube_t frommoves(const char *);
 
 _static int permsign(uint8_t *, int);
 _static cube_t move(cube_t, uint8_t);
@@ -165,6 +166,12 @@ applymoves_error:
 }
 
 _static cube_t
+frommoves(const char *buf)
+{
+        return applymoves(solved, buf);
+}
+
+_static cube_t
 applytrans(cube_t cube, const char *buf)
 {
         uint8_t t;
diff --git a/src/cube_public.h b/src/cube_public.h
new file mode 100644
index 0000000..7f7b81c
--- /dev/null
+++ b/src/cube_public.h
@@ -0,0 +1,83 @@
+int check(cube_t, char [static 22]);
+
+int
+check(cube_t cube, char result[static 22])
+{
+        if (!isconsistent(cube)) {
+                writecube("B32", zero, result);
+                return 2;
+        }
+
+        return issolvable(cube) ? 0 : 1;
+}
+
+int
+nissy_compose(
+        const char cube[static 22],
+        const char permutation[static 22],
+        char result[static 22]
+)
+{
+        cube_t c, p, res;
+
+        c = readcube("B32", cube);
+        p = readcube("B32", permutation);
+
+        res = compose(c, p);
+
+        return check(res, result);
+}
+
+int
+nissy_inverse(
+        const char cube[static 22],
+        char result[static 22]
+);
+
+int nissy_applymoves(
+        const char cube[static 22],
+        const char *moves,
+        char result[static 22]
+);
+
+int nissy_applytrans(
+        const char cube[static 22],
+        const char *transformation,
+        char result[static 22]
+);
+
+int nissy_frommoves(
+        const char *moves,
+        char result[static 22]
+);
+
+int nissy_readcube(
+        const char *format,
+        const char *cube_string,
+        char result[static 22]
+);
+
+int nissy_writecube(
+        const char *format,
+        const char cube[static 22],
+        char *result
+);
+
+int64_t nissy_gendata(
+        const char *solver,
+        const char *options,
+        void *data
+);
+
+int64_t nissy_solve(
+        const char cube[static 22],
+        const char *solver, 
+        const char *options,
+        const char *nisstype,
+        int8_t minmoves,
+        int8_t maxmoves,
+        int64_t maxsolutions,
+        int8_t optimal,
+        const void *data,
+        char *solutions
+);
diff --git a/src/solve_generic.h b/src/solve_generic.h
index b5d1e2d..c80f3ef 100644
--- a/src/solve_generic.h
+++ b/src/solve_generic.h
@@ -57,25 +57,6 @@ solve(
         return -1;
 }
 
-void
-multisolve(
-        int n,
-        cube_t *cube,
-        const char *solver,
-        const void *data,
-        char *sols
-)
-{
-        char *s;
-        int i;
-
-        s = sols;
-        for (i = 0; i < n; i++) {
-                solve(cube[i], solver, "", "normal", 0, -1, 1, 0, NULL, s);
-                while (s++);
-        }
-}
-
 _static void
 solve_generic_appendsolution(dfsarg_generic_t *arg)
 {